1. Effects of P-Glycoprotein Inhibitor and Elicitor on the Salt Tolerance of Rice Seedlings
- Author
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Qun-Shan Ye, Xiao-Qin Fu, Xiao Chen, Chui-Kang Fu, Xing-Fu Zhang, Liang-Jun Fang, Zhi-Kai Zhu, Tian Wu, and Zheng-Chao Wang
- Subjects
P-glycoprotein Inhibitor ,Oryza sativa ,Chemistry ,fungi ,food and beverages ,Endogeny ,Plant Science ,Biochemistry ,General Biochemistry, Genetics and Molecular Biology ,Elicitor ,chemistry.chemical_compound ,Cyclosporin a ,Botany ,medicine ,Verapamil ,Cultivar ,Abscisic acid ,medicine.drug - Abstract
Hymexazol (3-Hydroxy-5-methylisoxazole) as the main ingredients of HI (elicitor) was used to screen salt-tolerant species from 122 salt-tolerant rice (Oryza sativa L.) cultivars under specific inducement. The results showed that the local species R6 is highly induce-sensitive. R6 showed salt tolerance during the whole growth period by using 1.0% NaCl solution after HI treatment. Cyclosporin A (CsA) and verapamil (VP) as P-glycoprotein (PGP) inhibitors and rifampin (RFP) as a PGP elicitor were used to treat R6. The morphological traits, structure of the root, physiological characteristics of leaf and root systems, the content of endogenous hormones indole-3-acetic acid (IAA) and abscisic acid (ABA) etc. show that CsA, VP and RFP had remarkable effects on the rice's salt tolerance. Hymexazol inducement (HI) can improve the rice's salt tolerance greatly and make it more salt-resistant. (Handling editor: Jin-Zhong Cui)
- Published
- 2007
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