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1.
An Acad Bras Cienc ; 92 Suppl 1: e20180885, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32491134

RESUMO

To investigate the simultaneous influence of different non-nutritional factors in production and physical-chemical characteristics of chitosan obtained by Syncephalastrum racemosum we used individually agroindustrial wastes as the only nutritional sources for fungus growth. The growth conditions were evaluated according to Factorial Design, 24 with three central points in order to determine the mainly factors for maximum production of microbiological chitosan in submerged culture. Syncephalastrum racemosum grown in corn steep liquor and yield up to 7.8 g chitosan/kg of substrate in the best condition by factorial design. The microbiological chitosan obtained has deacetilation degree 88.14%, crystallinity rate of 55.96%, mass decomposition process at 304.43 ºC, and low molecular weight. To fast production we performed a kinetic study and confirmed that at 36 h the chitosan production is higher and the physical-chemical characteristics were maintained. This research describes, for the first time, the factorial study of chitosan production by Syncephalastrum racemosum in agroindustrial wastes and its economic potential for commercialization.


Assuntos
Biodegradação Ambiental , Quitosana/metabolismo , Fungos/crescimento & desenvolvimento , Resíduos Industriais/economia , Fatores de Tempo
2.
Pestic Biochem Physiol ; 166: 104570, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32448423

RESUMO

Tomato is an important vegetable crop which is severely affected by Groundnut bud necrosis virus (GBNV). Until now effective antiviral agents have not been reported for the management of necrosis disease caused by GBNV. Therefore, a study was undertaken to manage the necrosis disease caused by GBNV using culture filtrate of basidiomycetous fungi viz., Coprinopsiscinerea, Ganoderma lucidum and Lentinula edodes. In vitro studies were conducted in the indicator host cowpea and primary host tomato in glasshouse under insect proof condition; co-inoculation spraying of culture filtrate of Ganoderma lucidum at 0.1% concentration reduced the lesion numbers and inhibited the virus population build-up when compared to inoculated control in the indicator host cowpea upto 77.83%. DAC-ELISA test was performed to quantify the virus titre, indicated reduced virus titre in co- inoculation spray of culture filtrate of G. lucidum treated cowpea with OD value 0.17 ± 0.01 at 405 nm and in tomato plants 0.14 ± 0.01 respectively. The viral copy numbers were quantified by qPCR. About 2.0 × 101 viral copy numbers were observed in tomato plants treated with G. lucidum (co-inoculation) which was lesser than untreated inoculated control plants (2.4 × 108). In order to identify the antiviral properties of G. lucidum, GCMS analysis was carried out and we found the triterpenoid compound Squalene. This is the first study to analyse and confirm the antiviral activity of G. lucidum against a plant virus.


Assuntos
Antivirais , Lycopersicon esculentum , Tospovirus , Fungos , Doenças das Plantas
3.
Cell Host Microbe ; 27(5): 687-688, 2020 05 13.
Artigo em Inglês | MEDLINE | ID: mdl-32407704

RESUMO

In this issue of Cell Host & Microbe, Yeung et al. (2020) and Lin et al. (2020) expose laboratory mice to a natural environment and use immune and microbiota characterization to show that fungi promote more human-like immunity. These studies will help develop animal models to more accurately resemble human immune responses.


Assuntos
Fungos , Microbiota , Animais , Proteínas Relacionadas à Autofagia , Proteínas de Transporte , Humanos , Imunidade , Camundongos , Modelos Animais , Proteína Adaptadora de Sinalização NOD2
4.
Bioresour Technol ; 311: 123477, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32408196

RESUMO

Penicillium subrubescens is able to degrade a broad range of plant biomass and it has an expanded set of Carbohydrate Active enzyme (CAZyme)-encoding genes in comparison to other Penicillium species. Here we used exoproteome and transcriptome analysis to demonstrate the versatile plant biomass degradation mechanism by P. subrubescens during growth on wheat bran and sugar beet pulp. On wheat bran P. subrubescens degraded xylan main chain and side residues from Day 2 of cultivation, whereas it started to degrade side chains of pectin in sugar beet pulp prior to attacking the main chain on Day 3. In addition, on Day 3 the cellulolytic enzymes were highly increased. Our results confirm that P. subrubescens adapts its enzyme production to the available plant biomass and is a promising new fungal cell factory for the production of CAZymes.


Assuntos
Penicillium , Biomassa , Fungos , Perfilação da Expressão Gênica , Plantas
5.
Phys Rev Lett ; 124(17): 174501, 2020 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-32412279

RESUMO

Very lean hydrogen flames were thought to quench in narrow confined geometries. We show for the first time how flames with very low fuel concentration undergo an unprecedented propagation in narrow gaps: H_{2}-air flames can survive very adverse conditions by breaking the reaction front into isolated flame cells that travel steadily in straight lines or split to perform a fractal-like propagation that resembles the pathway of starving fungi or bacteria. The combined effect of hydrogen mass diffusivity and intense heat losses act as the two main mechanisms that explain the experimental observations.


Assuntos
Hidrogênio/química , Modelos Teóricos , Bactérias/crescimento & desenvolvimento , Bactérias/metabolismo , Fogo , Fungos/crescimento & desenvolvimento , Fungos/metabolismo , Modelos Biológicos , Modelos Químicos
6.
Mycorrhiza ; 30(4): 419-429, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-32363467

RESUMO

To examine the effects of ericoid mycorrhizal (ERM) fungi on salt tolerance of ericaceous plants, we inoculated roots of velvetleaf blueberry (Vaccinium myrtilloides), Labrador tea (Rhododendron groenlandicum), and lingonberry (Vaccinium vitis-idaea) with ericoid mycorrhizal fungi Oidiodendron maius and Meliniomyces variabilis. Plants were subjected to 0 (NaCl control) and 30 mM NaCl treatments, and plant dry weights, gas exchange, and leaf chlorophyll concentrations were compared in inoculated and non-inoculated plants. M. variabilis increased root dry weights in all three species of NaCl-treated plants, and O. maius enhanced root dry weights of lingonberry plants treated with NaCl. Both fungal species were especially effective in enhancing root and shoot dry weights in control (0 mM NaCl) and NaCl-treated lingonberry seedlings. Leaf chlorophyll concentrations were enhanced by fungal inoculation in all three plant species, and this effect persisted under salt stress in Labrador tea and lingonberry. Salt treatment drastically reduced transpiration rates (E) and lowered net photosynthesis (Pn) to the negative values in all three species of non-inoculated plants, and this effect was partly or almost completely reversed by the inoculation with O. maius and M. variabilis. Fungal inoculation was especially effective in reducing NaCl effects on Pn in lingonberry. Oidiodendron maius and M. variabilis were also equally effective in reversing NaCl-induced declines of E in velvetleaf blueberry and lingonberry. However, in Labrador tea, O. maius reversed the decline of E in NaCl-treated plants less compared with M. variabilis resulting in high photosynthetic water use efficiency values. The results support the hypothesis that, similarly to arbuscular mycorrhizal and ectomycorrhizal associations, ERM association increases salt tolerance of plants.


Assuntos
Ascomicetos , Micorrizas , Fungos , Raízes de Plantas , Plantas , Tolerância ao Sal
7.
Zootaxa ; 4751(3): zootaxa.4751.3.4, 2020 Mar 18.
Artigo em Inglês | MEDLINE | ID: mdl-32230406

RESUMO

In this second part on the black fungus gnats of Queensland, Australia, nine species are described as new for science. These are: Pseudolycoriella angustoantennata sp. n., Psl. breviradiata sp. n., Psl. consectaria sp. n., Psl. fuscovenosa sp. n., Psl. globostylata sp. n., Psl. notanda sp. n., Psl. paucispinata sp. n., Psl. secura sp. n. and Psl. unispinata sp. n. The following three species are new for Australia: Psl. bisulca Vilkamaa, Hippa Mohrig, 2012, known from New Caledonia; Psl. snellingi Mohrig, 2013, reported from Papua New Guinea and Psl. horribilis (Edwards, 1931), described from Sumatra. All species are illustrated and keyed.


Assuntos
Dípteros , Distribuição Animal , Animais , Austrália , Fungos , Queensland
8.
Zootaxa ; 4751(1): zootaxa.4751.1.14, 2020 Mar 16.
Artigo em Inglês | MEDLINE | ID: mdl-32230442

RESUMO

The first objective of this paper is to describe a new fungus-feeding species in the Phlaeothripinae genus Apelaunothrips, and to provide a key to the six species of this genus recorded from India. The second objective is to establish a new synonym in the Poaceae-associated genus, Podothrips, based on structural variation observed among recently collected samples from bamboo. The slide-mounted specimens were studied with a Leica Trinocular Microscope (Leica DM-1000) and a Leica software application suite (LAS EZ 2.1.0) was used to make line drawing and photographs.


Assuntos
Tisanópteros , Animais , Fungos , Índia , Poaceae
9.
Zootaxa ; 4722(1): zootaxa.4722.1.9, 2020 Jan 10.
Artigo em Inglês | MEDLINE | ID: mdl-32230643

RESUMO

Eoexechia gallica gen. n. and sp. n., oldest record of the fungus gnat tribe Exechiini, is described from the Lowermost Eocene amber of France. It falls as sister group of all the extant Exechiini after its addition to the morphological phylogenetic analysis of the tribe. Its discovery suggests a Paleocene age for the Exechiini, in accordance with the current phylogenetic dating. This new discovery will help to date the whole clade in future phylogenies.


Assuntos
Âmbar , Dípteros , Animais , Fósseis , Fungos , Filogenia
10.
BMC Infect Dis ; 20(1): 295, 2020 Apr 21.
Artigo em Inglês | MEDLINE | ID: mdl-32316920

RESUMO

BACKGROUND: Soft tissue or skin infections due to nontuberculous mycobacteria (NTM) have been reported frequently and are mostly associated with trauma or cosmetic interventions like plastic surgery. However, infection with NTM as a result of a dental procedure have rarely been described and the lack of clinical suspicion and a clear clinical manifestation makes diagnosis challenging. CASE PRESENTATION: We report on three patients with a facial cutaneous sinus tract of dental origin, due to an infection with respectively Mycobacterium fortuitum, M. abscessus and M. peregrinum. The infection source was the dental unit waterlines (DUWLs), which were colonized with NTM. CONCLUSIONS: Water of the DUWL can pose a health risk. This report emphasizes the need for quality control and certification of water flowing through DUWLs, including the absence of NTM. Our report also shows the need for a rapid recognition of NTM infections and accurate laboratory diagnosis in order to avoid long-term ineffective antibiotic treatment.


Assuntos
Face/microbiologia , Infecções por Mycobacterium não Tuberculosas/diagnóstico , Micobactérias não Tuberculosas/isolamento & purificação , Adolescente , Criança , DNA Viral/metabolismo , Feminino , Fungos/isolamento & purificação , Humanos , Infecções por Mycobacterium não Tuberculosas/microbiologia , Mycobacterium fortuitum/genética , Mycobacterium fortuitum/isolamento & purificação , Micobactérias não Tuberculosas/genética , Microbiologia da Água , Adulto Jovem
11.
Toxicon ; 178: 50-58, 2020 Apr 30.
Artigo em Inglês | MEDLINE | ID: mdl-32250747

RESUMO

Aflatoxins are secondary metabolites of fungi that are the most dangerous mycotoxin and food safety challenges. Human exposure to mycotoxins occurs directly throughout the intake of contaminated agricultural products or indirectly throughout the consumption of products prepared with animal origin or obtained from animals that were fed with contaminated material. For detoxification and reducing threats to public health and the economic damage caused by the aflatoxins in animal and plants food products, different techniques (physical, chemical and biological) has been studied. All of these methods, by modifying and destroying the toxin molecular structure, would inhibit its transfer to the digestive system and could reduce the accessibility of toxins to the target tissue and eliminate it. In terms of the overarching challenges presented by the aflatoxins (AFs) contamination in foods and feeds, there is an urgent need to evolve cost-effective and appropriate strategies to combat this hazard. The review addresses have been noted the pathogenicity of AFs and the plausible mechanism of their-induced toxicity. Furthermore, assessed the AFs degradation using probiotic bacteria of their biological substance, and converting it into non-toxic or less toxic products, as a cost-effective and environmentally friendly strategy of detoxification method for providing appropriate solutions.


Assuntos
Aflatoxinas/metabolismo , Bactérias/metabolismo , Probióticos/metabolismo , Animais , Contaminação de Alimentos , Fungos/metabolismo , Inativação Metabólica
12.
Dermatol Online J ; 26(2)2020 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-32239896

RESUMO

An 89-year-old woman presented with plaque-like lesions, accompanied with pustules and desquamation on the back and front of the trunk for approximately one year. Long term use of potent topical corticosteroids was ineffective. Because of the chronicity of her condition, the diagnoses of subcorneal dermatosis or subcorneal pustular dermatosis type of IgA pemphigus were considered. However, fungal hyphae were observed in the potassium hydroxide examination. Therefore, we present this case since this clinical appearance of tinea incognito can also mimic various pustular dermatoses.


Assuntos
Dermatopatias Vesiculobolhosas/diagnóstico , Tinha/diagnóstico , Administração Tópica , Corticosteroides/administração & dosagem , Idoso de 80 Anos ou mais , Diagnóstico Diferencial , Feminino , Fungos/isolamento & purificação , Humanos , Dermatopatias Vesiculobolhosas/tratamento farmacológico
13.
Ecol Lett ; 23(6): 973-982, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32266749

RESUMO

Soil legacy effects are commonly highlighted as drivers of plant community dynamics and species co-existence. However, experimental evidence for soil legacy effects of conditioning plant communities on responding plant communities under natural conditions is lacking. We conditioned 192 grassland plots using six different plant communities with different ratios of grasses and forbs and for different durations. Soil microbial legacies were evident for soil fungi, but not for soil bacteria, while soil abiotic parameters did not significantly change in response to conditioning. The soil legacies affected the composition of the succeeding vegetation. Plant communities with different ratios of grasses and forbs left soil legacies that negatively affected succeeding plants of the same functional type. We conclude that fungal-mediated soil legacy effects play a significant role in vegetation assembly of natural plant communities.


Assuntos
Pradaria , Solo , Fungos , Plantas , Microbiologia do Solo
14.
Mycorrhiza ; 30(2-3): 269-283, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-32242246

RESUMO

The diversity and community structure of arbuscular mycorrhizal fungi (AMF) associated with coconut (Cocos nucifera) roots was evaluated by next generation sequencing (NGS) using partial sequences of the 18S rDNA gene and by spore isolation and morphological identification from rhizosphere soil. Root samples from six different Green Dwarf coconut plantations and from one organic plantation surrounded by tropical dry forest along the coastal sand dunes in Yucatan, Mexico, were collected during the rainy and dry seasons. In total, 14 root samples were sequenced with the Illumina MiSeq platform. Additionally, soil samples from the dry season were collected to identify AMF glomerospores. Based on a 95-97% similarity, a total of 36 virtual taxa (VT) belonging to nine genera were identified including one new genus-like clade. Glomus was the most abundant genus, both in number of VT and sequences. The comparison of dry and rainy season samples revealed differences in the richness and composition of AMF communities colonizing coconut roots. Our study shows that the main AMF genera associated with coconut tree roots in all samples were Glomus, Sclerocystis, Rhizophagus, Redeckera, and Diversispora. Based on glomerospore morphology, 22 morphospecies were recorded among which 14 were identified to species. Sclerocystis sinuosa, Sclerocystis rubiformis, Glomus microaggregatum, and Acaulospora scrobiculata were dominant in field rhizosphere samples. This is the first assessment of the composition of AMF communities colonizing coconut roots in rainy and dry seasons. It is of importance for selection of AMF species to investigate for their potential application in sustainable agriculture of coconut.


Assuntos
Micorrizas , Biodiversidade , Cocos , Fungos , México , Raízes de Plantas , Estações do Ano , Microbiologia do Solo
15.
Ann Clin Microbiol Antimicrob ; 19(1): 11, 2020 Mar 30.
Artigo em Inglês | MEDLINE | ID: mdl-32228660

RESUMO

BACKGROUND: Fungal keratitis (FK) has been shown to be a climate-sensitive disease. The differentiation between FK from bacterial keratitis (BK) was difficult. The purpose of this study was to compare the bacteriology and mycology between tropical and subtropical Taiwan and to investigate the independent risk factors for identification of fungi from bacteria. METHODS: Two hundred ninety-seven patients with clinical suspected microbial keratitis were prospectively enrolled. A fungal to bacteria rate (FBR), the number of fungi divided by bacteria identified, was determined to estimate the prevalence of fungi and bacteria. Clinical presentation, profiles of microorganisms, and predisposing risk factors were determined. Univariate and multivariate logistic regression analysis were used to investigate the independent risk factors. RESULTS: A total of 82 fungi and 143 bacteria were laboratory confirmed. The identification rate of fungus was higher in tropical Taiwan (p = 0.010). Among the fungi and bacteria confirmed, the FBR was 0.29 (22.4% vs. 77.6%) in subtropical Taiwan, and 0.70 (41.3% vs. 58.7%) in tropical Taiwan. Samples obtained in tropical area (p = 0.019), ocular trauma (p = 0.019), and plant exposure (p = 0.003) were independent risk factors for identification of fungus from bacteria. The predominant fungus isolated from corneal scraping were Fusarium solani (25%) and Trichosporon faecale (25%) in subtropical Taiwan; in tropical Taiwan was Fusarium spp. (50%). CONCLUSIONS: The identification rate of fungus was higher in tropical Taiwan than subtropical Taiwan. Awareness of the local epidemiology is crucial for early diagnosis of fungal keratitis in tropical area.


Assuntos
Úlcera da Córnea/microbiologia , Infecções Oculares Fúngicas/diagnóstico , Ceratite , Adulto , Bactérias/isolamento & purificação , Estudos de Coortes , Infecções Oculares Bacterianas/diagnóstico , Feminino , Fungos/isolamento & purificação , Fusarium/isolamento & purificação , Humanos , Ceratite/diagnóstico , Ceratite/microbiologia , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de Risco , Taiwan/epidemiologia , Trichosporon/isolamento & purificação , Clima Tropical/efeitos adversos
17.
Mar Pollut Bull ; 153: 110976, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32275531

RESUMO

The Pestalotiopsis sp. genus comprises filamentous fungi whose species present both pathogenic and clinical-industrial importance. The cultivation and production of bivalve molluscs in regions of Rio de Janeiro is lucrative both artisanally and industrially, as the climate, geography and water quality favor the practice of this activity throughout the year at reduced costs, making the region competitive in the national market. The aim of this study was to isolate and identify filamentous fungi associated with the internal tissue anatomy of bivalve molluscs (Perna perna) from mariculture farms. Samples collected from BEMAR marine farms were dissected and transferred to 1% hypochlorite, washed in sterile distilled water and sown on Petri dishes containing potato dextrose agar (BDA). After four days, a white colony, displaying vigorous mycelium, cotton-like with abundant sporulation and black conidia masses was isolated. Observations concerning vegetative and reproductive structures were performed by microcultures stained with Amann's Lactophenol andCotton Blue. Micromorphology analyses indicated spindle and septated conidia, with two to three apical filiform appendages and a short basal pedicel. The result indicates that bivalve mollusks may be bioindicators for the presence of Pestalotiopsis sp; associated with water transport, possibly due to diluted sediments in the medium. No infectious processes or lesions in the processed material were observed. This is, to the best of our knowledge, the first report of Pestalotiopsis sp; in Perna perna mytilids.


Assuntos
Fungos/isolamento & purificação , Perna (Organismo)/microbiologia , Animais , Aquicultura , Brasil , Contaminação de Alimentos , Fungos/metabolismo , Humanos , Mytilidae/microbiologia
18.
Water Res ; 178: 115840, 2020 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-32339863

RESUMO

Ecotoxicological risk of ZnO nanoparticles at environmental levels is a key knowledge gap for predicting how freshwater ecosystems will respond to nanoparticle pollution. A microcosm experiment was conducted to explore the chronic effects of ZnO nanoparticle at environmental concentrations (30, 300, 3000 ng L-1) on aquatic fungi associated with the decomposing process of poplar leaf litter (45 days). ZnO nanoparticles led to 9-33% increases in fungal biomass after acute exposure (5 days), but 33-50% decreases after chronic exposure (45 days), indicating that the hormetic effect of ZnO nanoparticles at the environmental level may occur during acute exposure. Besides, ZnO nanoparticles had negative effects on microbial enzyme activity, especially on day 10, when the activities of N-acetylglucosaminidase, glycine-aminopeptidase, aryl-sulfatase, polyphenol oxidase, and peroxidase were significantly inhibited. After chronic exposure, the fungal community structure was significantly impacted by ZnO nanoparticles at 300 ng L-1 due to the reduced proportion of Anguillospora, which eventually caused a significant decrease in litter decomposition rate. Therefore, ZnO nanoparticles may pose ecotoxicological effects on aquatic fungi even at a very low concentration and eventually negatively affect freshwater functioning.


Assuntos
Nanopartículas , Óxido de Zinco , Ecossistema , Água Doce , Fungos , Folhas de Planta
19.
Acta Crystallogr C Struct Chem ; 76(Pt 4): 359-366, 2020 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-32229717

RESUMO

Derivatives of pyrimidine-2(1H)-selenone are a group of compounds with very strong antimicrobial activity. In order to study the effect of the position of the methoxy substituent on biological activity, molecular geometry and intermolecular interactions in the crystal, three derivatives were prepared and evaluated with respect to their antimicrobial activities, and their crystal structures were determined by X-ray diffraction. The investigated compounds, namely, 1-(X-methoxyphenyl)-4-methyl-6-phenylpyrimidine-2(1H)-selenones (X = 2, 3 and 4 for 1, 2 and 3, respectively), C18H16N2OSe, showed very strong activity against selected strains of Gram-positive bacteria and fungi. Two compounds, 1 and 2, crystallize in the monoclinic space group P21/c, while 3 crystallizes in the space group P21/n; 1 has two molecules in the asymmetric unit and the other two (2 and 3) have one molecule. The geometries of the investigated compounds differ slightly in the mutual orientations of the aromatic and pyrimidineselenone rings. The O atom in 1 stabilizes the conformation of the molecules via intramolecular C-H...O hydrogen bonding. The packing of molecules is determined by weak C-H...N and C-H...Se intermolecular interactions and additionally in 1 and 2 by C-H...O intermolecular interactions. The introduction of the methoxy substituent results in greater selectivity of the investigated compounds.


Assuntos
Anti-Infecciosos/química , Pirimidinas/química , Anti-Infecciosos/farmacologia , Cristalografia por Raios X , Fungos , Ligação de Hidrogênio , Estrutura Molecular
20.
Ecotoxicol Environ Saf ; 196: 110453, 2020 Jun 15.
Artigo em Inglês | MEDLINE | ID: mdl-32229326

RESUMO

Anaerobically digested slurry (ADS) has been widely used as a liquid fertilizer in agroecosystems. However, there is scant information on the effects of successive ADS applications on heavy metals (HMs) accumulation and fungal community composition in paddy soils. In this study, we conducted a field experiment over 10 years to assess the changes in soil HMs and fungal community composition under the long-term application of ADS in a paddy field. The four treatments were (1) no fertilizer (CK); (2) mineral fertilizer and 270 kg N ha-1 from urea (MF); (3) 270 kg N ha-1 from ADS (ADS1); and (4) 540 kg N ha-1 from ADS (ADS2). The results revealed that ADS application improved paddy soil fertility compared to that under the MF treatment by increasing soil organic C (SOC), total N (TN) and available potassium (AK). Long-term application of ADS significantly increased soil total and available Zn (TZn and AZn) concentrations as compared to those under the MF treatment. However, there were no significant differences in the total and available Cu concentrations or the total Pb concentration between the ADS and MF treatments. Sequence analysis showed that application of ADS increased the fungal richness indexes (Chao1 and ACE) compared to MF treatment. Principal coordinate analysis (PCoA) showed that the soil fungal community compositions were significantly separated by high levels of ADS application. Long-term application of ADS increased the relative abundance of classes Sordariomycetes, Dothideomycetes and Agaricomycetes by 20.8-29.0%, 107.3-141.4% and 289.5-387.5%, respectively, but decreased that of Pezizomycetes by 14.0-33.0% compared to that under the MF treatment. At the genus level, compared to those under the MF treatment, the relative abundances of Pyrenochaetopsis and Myrothecium were significantly increased by the application of ADS, but those of Mrakia and Tetracladium were significantly decreased. Redundancy analysis (RDA) revealed that SOC, AZn and AP were the three most important factors affecting the fungal community composition of the paddy soil. Our findings suggested that fungal community composition could be affected by changes in the chemical properties and heavy metal contents of paddy soil under high application of ADS in the long term.


Assuntos
Fertilizantes , Metais Pesados/metabolismo , Micobioma/genética , Poluentes do Solo/metabolismo , Solo/química , Agricultura/métodos , Fertilizantes/análise , Fungos/classificação , Fungos/genética , Fungos/isolamento & purificação , Fungos/metabolismo , Esterco , Metais Pesados/análise , Oryza/química , Microbiologia do Solo , Poluentes do Solo/análise
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