Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 8 de 8
Filtrar
Mais filtros










Base de dados
Intervalo de ano de publicação
1.
J Fungi (Basel) ; 8(9)2022 Aug 26.
Artigo em Inglês | MEDLINE | ID: mdl-36135632

RESUMO

In the present study, we report two new asexual fungal species (i.e., Discosia rhododendricola, Neopestalotiopsis rhododendricola (Sporocadaceae) and a new host for a previously described species (i.e., Diaporthe nobilis; Diaporthaceae). All species were isolated from Rhododendron spp. in Kunming, Yunnan Province, China. All taxa are described based on morphology, and phylogenetic relationships were inferred using a multigenic approach (LSU, ITS, RPB2, TEF1 and TUB2). The phylogenetic analyses indicated that D. rhododendronicola sp. nov. is phylogenetically related to D. muscicola, and N. rhododendricola sp. nov is related to N. sonnaratae. Diaporthe nobilis is reported herein as a new host record from Rhododendron sp. for China, and its phylogeny is depicted based on ITS, TEF1 and TUB2 sequence data.

2.
Front Microbiol ; 11: 585215, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33123114

RESUMO

Phosphate-solubilizing fungi (PSF) play an important role in increasing the bioavailability of phosphorus in soils for plants. Thirteen fungal strains, one collected from air and 12 from soil, were screened and described here in detail. These fungal strains were tested for their ability to solubilize tricalcium phosphate (TCP) on both solid and liquid Pikovskaya (PVK) media in vitro. The airborne fungal strain KUMCC 18-0196 (Aspergillus hydei sp. nov.) showed the most significant phosphate solubilizing activity on a solid PVK medium with the solubilization index (SI) (2.58 ± 0.04 cm) and the highest solubilized phosphates (1523.33 ± 47.87 µg/mL) on a liquid PVK medium. To the best of our knowledge, A. hydei sp. nov. is the first phosphate-solubilizing fungus reported from air. We also provide the identification especially for Aspergillus, Penicillium and Talaromyces, generally reported as PSF. It is important to not only screen for PSF but also identify species properly so that researchers have a clearer taxonomic picture for identifying potential taxa for future plant growth-promoting applications. Herein, A. hydei (section Nigri), Gongronella hydei, Penicillium soli (section Lanata-Divaricata) and Talaromyces yunnanensis (section Talaromyces) are fully described and introduced as new to science. These four new species are identified based on both morphological characteristics and multigene phylogenetic analyses, including the genealogical concordance phylogenetic species recognition method where necessary. Penicillium austrosinense is considered to be a synonym of P. guaibinense.

3.
Front Microbiol ; 11: 1303, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32714291

RESUMO

During an ongoing investigation of Ascomycetes from plant substrates, three saprobic species were found from plant substrates. Two new species, Leptosphaeria regiae and Neomicrosphaeropsis juglandis were isolated from dead branches of Juglans regia from Turkey. Another species is introduced herein as Subplenodomus urticae sp. nov within the family Leptosphaeriaceae found on Urtica dioica in Italy. Multigene phylogenies based on combined LSU, ITS, SSU, and ß-tubulin DNA sequence data generated from maximum likelihood and MrBayes analyses indicate that Leptosphaeria regiae is related to L. slovacica and forms an independent lineage within the genus Leptosphaeria. Subplenodomus urticae is basal to S. iridicola and its establishment as a new species is strongly supported. Neomicrosphaeropsis juglandis forms a moderately supported lineage in between N. italica and N. elaeagni in the Didymellaceae. Full morphological details are provided herein and phylogenetic relationships of the three new species are also discussed.

4.
PLoS One ; 14(6): e0217982, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31242234

RESUMO

During our studies on fungal diversity from plant substrates, a new species of Valsaria was isolated from dead branches of Ostrya carpinifolia. The taxon is morphologically similar to other taxa in Valsariaceae and is characterized by pseudostromata, apically free pseudoparaphyses, bitunicate asci, and dark brown, 2-celled ascospores. However, it differs from extant species in number of guttules and ornamentation of spore. It is introduced herein as Valsaria ostryae sp. nov. within the family Valsariaceae. Multigene phylogenies based on combined LSU, ITS and RPB2 DNA sequence data generated from maximum likelihood, maximum parsimony and MrBayes analyses indicate that V. ostryae is basal to V. lopadostomoides and V. rudis and its establishment as a new species is strongly supported. No discordance was found between our morphological and phylogenetic species boundaries as postulated by other researchers and our molecular data strongly supports ornamentation of spore as useful for species delineation. Valsaria species do not appear to be host specific. Full morphological details are provided herein and phylogenetic relationships of Valsaria species are also discussed in light with host association.


Assuntos
Ascomicetos/genética , Família Multigênica , Filogenia , Esporos Fúngicos , Ascomicetos/classificação , Teorema de Bayes , Genes Fúngicos , Funções Verossimilhança
5.
Nutrients ; 8(12)2016 Nov 29.
Artigo em Inglês | MEDLINE | ID: mdl-27916818

RESUMO

The purpose of the study was to assess the determinants of nutrition behaviors and body mass index and determine the impact of a nutrition education intervention (NEI) among Mauritian housewives. A pretest-posttest design was used assessing Nutrition Knowledge (NK), Nutrition Attitudes, Fruit and Vegetable Intake (FVI), body mass index (BMI). Two hundred Mauritian housewives were recruited. The NEI was in the form of a lecture and lasted for twenty minutes. Statistical tests performed revealed that the mean NK score at baseline was 65.8 ± 6.92 and a significant increase of +17.1 at post-test and +16.1 at follow-up was observed. Determinants of NK were age, presence of elderly people, and BMI. Mean nutrition attitude score at baseline was 2.37 ± 0.22 with significant increase of +0.2 (post-test) and +0.17 at follow-up. Age, level of education, presence of elders, and NK were linked to a positive attitude. FVI was predicted by age, income, presence of elders, NK, and nutrition attitudes. Baseline FVI was 4.77 ± 1.11 which increased significantly (p < 0.001) to 4.98 ± 1.13 at post-test and 5.03 ± 1.20 at follow up. NEI had a positive impact suggesting the benefits of such intervention in the promotion of healthy nutrition behaviors.


Assuntos
Inquéritos sobre Dietas , Frutas , Verduras , Adulto , Registros de Dieta , Escolaridade , Feminino , Comportamentos Relacionados com a Saúde , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Maurício , Pessoa de Meia-Idade , Política Nutricional
6.
Nutrients ; 8(3): 127, 2016 Feb 29.
Artigo em Inglês | MEDLINE | ID: mdl-26938555

RESUMO

The purpose of the study was to evaluate the effectiveness of a multicomponent nutrition education program among adults. A pretest-posttest design was used assessing Nutritional Knowledge (NK), BMI, Energy Intake (EI), Physical Activity Level (PAL), Dietary Intake (DI) and attitudes. 353 adults aged 19-55 years (178 control group (CG) and 175 intervention group (IG)) were recruited. IG participants attended nutrition education sessions evaluated through a post-test given at the end of the 12-week program. Statistical tests performed revealed that compared to CG, participants in IG increased fruit intake and decreased intake of snacks high in sugar and fat significantly (p < 0.05). NK and attitudinal scores also increased significantly in the IG (p < 0.05). No intervention effect was found for vegetables intake, EI, BMI and PAL (p > 0.05). Factors influencing NK were age, gender and education level. "Taste" was the main barrier to the application of the nutrition education strategy. Findings are helpful to health practitioners in designing their intervention programs.


Assuntos
Dieta , Ingestão de Energia , Frutas , Comportamentos Relacionados com a Saúde , Conhecimentos, Atitudes e Prática em Saúde , Nutricionistas , Educação de Pacientes como Assunto , Verduras , Adulto , Fatores Etários , Idoso , Dieta/efeitos adversos , Registros de Dieta , Escolaridade , Comportamento Alimentar , Feminino , Preferências Alimentares , Humanos , Masculino , Maurício , Pessoa de Meia-Idade , Inquéritos Nutricionais , Fatores Sexuais , Paladar , Fatores de Tempo , Adulto Jovem
7.
Afr Health Sci ; 16(4): 910-922, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-28479881

RESUMO

BACKGROUND: Adolescence is considered a critical period marked by an increase in energy intake to meet the body's physiological needs especially during puberty. This study reviews existing literature and critically analyses factors associated with eating habits and energy intake of adolescent girls. METHODS: A comprehensive search was conducted to identify at least 200 peer reviewed articles which dealt with the factors affecting energy intake (EI) and eating habits of adolescent girls. Studies were identified using a reference period between 1994 and 2016, based primarily on the PubMed/ CINL/ Science Direct/Google Scholar databases using keywords adolescent/ teenagers, factors/determinants and energy intake. RESULTS: No studies investigated all factors affecting energy intake among adolescents. Some studies found mixed association among the determinants of EI in adolescent girls. However, a number of reviews confirm that many factors namely physical activity level, socio-economic status, diet, individual and social factors do contribute to either a higher or a lower EI of adolescents. CONCLUSION: There is a dire need to consider factors associated with EI when designing nutritional intervention programs to prevent health problems in adulthood. The goal is not to change behavior of all but to increase the percentage of people adopting healthier lifestyle.


Assuntos
Dieta , Ingestão de Energia , Comportamento Alimentar/psicologia , Adolescente , Imagem Corporal/psicologia , Estudos Transversais , Cultura , Meio Ambiente , Exercício Físico , Relações Familiares/psicologia , Feminino , Conhecimentos, Atitudes e Prática em Saúde , Nível de Saúde , Humanos , Meios de Comunicação de Massa , Fatores Socioeconômicos
8.
Iran J Public Health ; 44(10): 1309-21, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26576343

RESUMO

BACKGROUND: Sufficient intake of fruits and vegetables has been associated with a reduced risk of chronic diseases and body weight management but the exact mechanism is unknown. The World Health Organisation and Food and Agriculture of the United Nation reports recommend adults to consume at least five servings of fruits and vegetables per day excluding starchy vegetables. This review focuses on the importance of fruits and vegetables as well as the benefits and progress of nutrition education in improving intake. METHODS: For this narrative review, more than 100 relevant scientific articles were considered from various databases (e.g Science Direct, Pub Med and Google Scholar) using the keywords Fruit and vegetable, Nutrition education, Body weight, Obesity, Benefits and challenges. RESULTS: Existing data suggests that despite the protective effects of fruits and vegetables, their intakes are still inadequate in many countries, especially developing ones. Consequently enhancing strategies to promote fruit and vegetable intake are essential for health promotion among population. A number of reviews confirm that a well planned and behaviour focused nutrition education intervention can significantly improve behaviour and health indicators. CONCLUSION: Despite challenges in nutrition education intervention programs, they are considered as a good investment in terms of cost benefit ratio. Rapid improvement in trends of nutrition education can be seen in many countries and majority of interventions has been successful in increasing fruits and vegetables intake. It is recommended that health professionals use multiple interventions to deliver information in several smaller doses over time to ensure improved outcomes.

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...