内生多粘芽孢杆菌S-7对甜菜光合作用、产量及品质的影响

[Effects of endophytic Paenibacillus polymyxa S-7 on photosynthesis, yield, and quality of sugar beet].

作者信息

Shi Ying-wu, Lou Kai, Li Chun, Yang Liang, Wang Xing-qin, Liu Wen-yu

机构信息

Key Laboratory of Green Chemical Processes of Xinjiang Production and Construction Corps, College of Agronomy, Shihezi University, Shihezi 832003, Xinjiang, China.

出版信息

Ying Yong Sheng Tai Xue Bao. 2009 Mar;20(3):597-602.

PMID:19637598

Abstract

This study showed that inoculation of endophytic Paenibacillus polymyxa S-7 could significantly (P < 0.05) promote the photosynthesis of sugar beet. After the inoculation, the leaf net photosynthetic rate (Pn), stomatal limitation (Ls), stomatal conductance (Gs), and transpiration rate (Tr) increased by 16.11%, 23.82%, 41.91%, and 34.80%, respectively, while the stomatal intercellular CO2 concentration (Ci) decreased by 21.09%. Inoculation of endophytic P. polymyxa S-7 could also increase sugar beet yield and its quality significantly (P < 0.05), with the tuberous root biomass and its sugar content increased by 25.63% and 17.46%, respectively. It was concluded that endophytic P. polymyxa S-7 not only affected the photosynthetic parameters, but also promoted the yield and quality of sugar beet.

摘要

本研究表明，接种内生多粘芽孢杆菌S-7可显著（P < 0.05）促进甜菜的光合作用。接种后，叶片净光合速率（Pn）、气孔限制（Ls）、气孔导度（Gs）和蒸腾速率（Tr）分别提高了16.11%、23.82%、41.91%和34.80%，而气孔胞间二氧化碳浓度（Ci）降低了21.09%。接种内生多粘芽孢杆菌S-7还可显著（P < 0.05）提高甜菜产量及其品质，块根生物量及其含糖量分别增加了25.63%和17.46%。得出的结论是，内生多粘芽孢杆菌S-7不仅影响光合参数，还促进了甜菜的产量和品质。