固氮多粘芽孢杆菌1460菌株中凝集素在细菌与植物根系相互作用过程中的生物学作用

Biological role of lectins from the nitrogen-fixing Paenibacillus polymyxa strain 1460 during bacterial-plant-root interactions.

作者信息

Karpunina Lidiya V, Mel'nikova Ulyana Yu, Konnova Svetlana A

机构信息

Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Pr. Entuziastov, Saratov 410049, Russia.

出版信息

Curr Microbiol. 2003 Nov;47(5):376-8. doi: 10.1007/s00284-002-3987-z.

DOI:10.1007/s00284-002-3987-z

PMID:14669912

Abstract

Enzyme-lectins LI and LII from Paenibacillus polymyxa 1460, when incubated with the carbohydrate moiety of the wheat-root exocomponent fraction, showed an increase in their proteolytic activity. This increase may be associated with the presence of lectin-specific carbohydrates in the root fraction. The lectins of the nitrogen-fixing paenibacilli enhance cellulose degradation in the plant cell, thus increasing the activity of beta-glucosidase in the wheat-root cell wall.

摘要

多粘芽孢杆菌1460中的酶凝集素LI和LII与小麦根外组分部分的碳水化合物部分一起孵育时，其蛋白水解活性增强。这种增强可能与根部分中凝集素特异性碳水化合物的存在有关。固氮芽孢杆菌的凝集素可增强植物细胞中的纤维素降解，从而提高小麦根细胞壁中β-葡萄糖苷酶的活性。