[Effects of p-hydroxybenzoic acid and phloroglucinol on mitochondria function and root growth in cotton (Gossypium hirsutum L.) seedling roots.] / 对ç¾åºè¯ç²é
¸åé´è¯ä¸é
对æ£è±å¹¼èæ ¹ç³»çº¿ç²ä½åè½åæ ¹ç³»çé¿çå½±å.
Ying Yong Sheng Tai Xue Bao
; 29(1): 231-237, 2018 Jan.
Article
in Zh
| MEDLINE
| ID: mdl-29692032
ABSTRACT
With early-maturing cotton cultivar CCRI-50 widely grown in China as experimental material, water culture experiment was conducted to study the effects of p-hydroxybenzoic acid and phloroglucinol with different concentrations (0.8, 4.0, and 20.0 mmol·L-1) on generation rate of reactive oxygen, changes of antioxidant enzyme activities and mitochondria function of cotton roots. Results showed that p-hydroxybenzoic acid and phloroglucinol treatments inhibited the cotton root growth, reduced SOD, POD, CAT and H+-ATPase activities in root mitochondria, increased the generation rate of O2-· and H2O2 content. In addition, they also increased the opening of mitochondrial permeability transition pores (MPTP), decreased the membrane fluidity and cytochrome c/a (Cyt c/a). Difference of mitochondria function between p-hydroxybenzoic acid and phloroglucinol treatments was minor at concentration of 0.8 mmol·L-1, while the inhibition to root growth and mitochondria function under treatment of p-hydroxybenzoic acid at concentration of 4.0 and 20.0 mmol·L-1 was stronger than that of phloroglucinol. Above all, p-hydroxybenzoic acid and phloroglucinol inhibited antioxidant enzyme activity and mitochondrial function in cotton seedling roots, and the inhibition depended on dose of phenolic acids. The inhibition to root growth and mitochondria function between p-hydroxybenzoic acid and phloroglucinol treatment was different, and p-hydroxybenzoic acid had stronger inhibition than phloroglucinol at the concentration more than 4.0 mmol·L-1.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Phloroglucinol
/
Gossypium
Country/Region as subject:
Asia
Language:
Zh
Journal:
Ying Yong Sheng Tai Xue Bao
Journal subject:
SAUDE AMBIENTAL
Year:
2018
Document type:
Article
Affiliation country:
China