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2,257 results on '"Shen, Qirong"'

151. Root colonization by beneficial rhizobacteria.

Author

Liu, Yunpeng, Xu, Zhihui, Chen, Lin, Xun, Weibing, Shu, Xia, Chen, Yu, Sun, Xinli, Wang, Zhengqi, Ren, Yi, Shen, Qirong, and Zhang, Ruifu

Subjects
PLANT colonization, RHIZOBACTERIA, AGRICULTURAL development, PATHOGENIC bacteria, PLANT growth, PLANT exudates
Abstract

Rhizosphere microbes play critical roles for plant's growth and health. Among them, the beneficial rhizobacteria have the potential to be developed as the biofertilizer or bioinoculants for sustaining the agricultural development. The efficient rhizosphere colonization of these rhizobacteria is a prerequisite for exerting their plant beneficial functions, but the colonizing process and underlying mechanisms have not been thoroughly reviewed, especially for the nonsymbiotic beneficial rhizobacteria. This review systematically analyzed the root colonizing process of the nonsymbiotic rhizobacteria and compared it with that of the symbiotic and pathogenic bacteria. This review also highlighted the approaches to improve the root colonization efficiency and proposed to study the rhizobacterial colonization from a holistic perspective of the rhizosphere microbiome under more natural conditions. [ABSTRACT FROM AUTHOR]

Published
2024
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155. Large‐scale exploration of nitrogen utilization efficiency in Asia region for rice crop: Variation patterns and determinants

Author

Sun, Yuming, primary, Gao, Limin, additional, Meng, Xusheng, additional, Huang, Jian, additional, Guo, Junjie, additional, Zhou, Xuan, additional, Fu, Guohai, additional, Xu, Yang, additional, Firbank, Leslie G., additional, Wang, Min, additional, Ling, Ning, additional, Feng, Xumeng, additional, Shen, Qirong, additional, and Guo, Shiwei, additional

Published
2023
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160. Rhizosphere Microbiota Promotes the Growth of Soybeans in a Saline–Alkali Environment under Plastic Film Mulching

Author

Mao, Han-Cheng, primary, Sun, Yifei, additional, Tao, Chengyuan, additional, Deng, Xuhui, additional, Xu, Xu, additional, Shen, Zhenquan, additional, Zhang, Laijie, additional, Zheng, Zehui, additional, Huang, Yanhua, additional, Hao, Yongren, additional, Zhou, Guoan, additional, Liu, Shulin, additional, Li, Rong, additional, Guo, Kai, additional, Tian, Zhixi, additional, and Shen, Qirong, additional

Published
2023
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193. Additive fungal interactions drive biocontrol of Fusarium wilt disease

Author

Tao, Chengyuan, primary, Wang, Zhe, additional, Liu, Shanshan, additional, Lv, Nana, additional, Deng, Xuhui, additional, Xiong, Wu, additional, Shen, Zongzhuan, additional, Zhang, Nan, additional, Geisen, Stefan, additional, Li, Rong, additional, Shen, Qirong, additional, and Kowalchuk, George A., additional

Published
2023
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194. Discovery of Novel Rhizoctonia solaniDHFR Inhibitors as Fungicides Using Virtual Screening

Author

Feng, Ruirui, Sun, Bo, Zhang, Shengkai, Su, Erzheng, Kovalevsky, Andrey, Zhang, Feng, Bennett, Brad C., Shen, Qirong, and Wan, Qun

Abstract

Dihydrofolate reductase (DHFR) is an essential enzyme in the folate pathway and has been recognized as a well-known target for antibacterial and antifungal drugs. We discovered eight compounds from the ZINC database using virtual screening to inhibit Rhizoctonia solani(R. solani), a fungal pathogen in crops. These compounds were evaluated with in vitroassays for enzymatic and antifungal activity. Among these, compound Hit8 is the most active R. solaniDHFR inhibitor, with the IC50of 10.2 μM. The selectivity of inhibition is 22.3 against human DHFR with the IC50of 227.7 μM. Moreover, Hit8 has higher antifungal activity against R. solani(EC50of 38.2 mg L–1) compared with validamycin A (EC50of 67.6 mg L–1), a well-documented fungicide. These results suggest that Hit8 may be a potential fungicide. Our study exemplifies a computer-aided method to discover novel inhibitors that could target plant pathogenic fungi.

Published
2023
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200. Listening to plant's Esperanto via root exudates: reprogramming the functional expression of plant growth‐promoting rhizobacteria.

Author

Feng, Haichao, Fu, Ruixin, Luo, Jiayu, Hou, Xueqin, Gao, Kun, Su, Lv, Xu, Yu, Miao, Youzhi, Liu, Yunpeng, Xu, Zhihui, Zhang, Nan, Shen, Qirong, Xun, Weibing, and Zhang, Ruifu

Subjects
PLANT growth-promoting rhizobacteria, PLANT exudates, GENE expression, PLANT growth, PLANT succession, PLANT growth promoting substances, SOIL microbiology
Abstract

Summary: Rhizomicrobiome plays important roles in plant growth and health, contributing to the sustainable development of agriculture. Plants recruit and assemble the rhizomicrobiome to satisfy their functional requirements, which is widely recognized as the 'cry for help' theory, but the intrinsic mechanisms are still limited.In this study, we revealed a novel mechanism by which plants reprogram the functional expression of inhabited rhizobacteria, in addition to the de novo recruitment of soil microbes, to satisfy different functional requirements as plants grow. This might be an efficient and low‐cost strategy and a substantial extension to the rhizomicrobiome recruitment theory.We found that the plant regulated the sequential expression of genes related to biocontrol and plant growth promotion in two well‐studied rhizobacteria Bacillus velezensis SQR9 and Pseudomonas protegens CHA0 through root exudate succession across the plant developmental stages. Sixteen key chemicals in root exudates were identified to significantly regulate the rhizobacterial functional gene expression by high‐throughput qPCR.This study not only deepens our understanding of the interaction between the plant–rhizosphere microbiome, but also provides a novel strategy to regulate and balance the different functional expression of the rhizomicrobiome to improve plant health and growth. [ABSTRACT FROM AUTHOR]

Published
2023
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