Phyllosphere microbiome induces host metabolic defence against rice false-smut disease

Liu, Xiaoyu; Matsumoto, Haruna; Lv, Tianxing; Zhan, Chengfang; Fang, Hongda; Pan, Qianqian; Xu, Haorong; Fan, Xiaoyan; Chu, Tianyi; Chen, Sunlu; Qiao, Kun; Ma, Yueming; Sun, Li; Wang, Qiangwei; Wang, Mengcen

doi:10.1038/s41564-023-01379-x

Cited by 44 publications

(22 citation statements)

References 67 publications

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“…on rice leaves are associated with rice resistance to U. virens in a leucine-dependent manner. The ability of leucine to overproduce H 2 O 2 induced apoptosis-like cell death, thereby suppressing the pathogenicity of U. virens . Notably, NMs can modulate the levels of phytohormones under stress conditions, thus indirectly affecting microbial abundance.…”

Section: Discussion and Perspectivesmentioning

confidence: 99%

“…The ability of leucine to overproduce H 2 O 2 induced apoptosis-like cell death, thereby suppressing the pathogenicity of U. virens. 174 Notably, NMs can modulate the levels of phytohormones under stress conditions, thus indirectly affecting microbial abundance. NMs are used to protect plants from abiotic stresses and to maintain a balanced, "healthy" microbiota.…”

Section: Discussion and Perspectivesmentioning

confidence: 99%

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Nanoenabled Enhancement of Plant Tolerance to Heat and Drought Stress on Molecular Response

Zhao,

Wu,

Amde

et al. 2023

J. Agric. Food Chem.

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Section: Discussion and Perspectivesmentioning

confidence: 99%

Section: Discussion and Perspectivesmentioning

confidence: 99%

Nanoenabled Enhancement of Plant Tolerance to Heat and Drought Stress on Molecular Response

Zhao,

Wu,

Amde

et al. 2023

J. Agric. Food Chem.

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“…Second, low‐temperature enrichment is closer to the low‐temperature conditions of kiwifruit canker disease (Donati et al., 2014). Recently, several bacterial isolates from the microbiome of rice and sugarcane rhizospheres, and Fusarium fruiting bodies have been reported to inhibit pathogens directly or by promoting plant resistance to crop diseases (Li, Liu, et al., 2022; Liu, Matsumoto, et al., 2023; Xu et al., 2022). These findings suggest the kiwifruit branch microbiome also contains excellent, previously uninvestigated beneficial bacteria with distinct working mechanisms, uncovering a promising strategy for discovering biocontrol agents from wood hosts after minor modification by changing pathogens (Figure 5g).…”

Section: Discussionmentioning

confidence: 99%

Adapting the inoculation methods of kiwifruit canker disease to identify efficient biocontrol bacteria from branch microbiome

Shao,

Wu,

et al. 2023

Molecular Plant Pathology

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Pseudomonas syringae pv. actinidiae (Psa), the bacterium that causes kiwifruit bacterial canker, is a common field occurrence that is difficult to control globally. Currently, exploring the resources for efficient biocontrol bacteria is a hot spot in the field. The common strategy for isolating biocontrol bacteria is to directly isolate biocontrol bacteria that can secrete diffusible antibacterial substances, most of which are members of Bacillus, Pseudomonas and Streptomycetaceae, from disease samples or soil. Here, we report a new approach by adapting the typical isolation methods of kiwifruit canker disease to identify efficient biocontrol bacteria from the branch microbiome. Using this unique approach, we isolated a group of kiwifruit biocontrol agents (KBAs) from the branch microbiome of Psa‐resistant varieties. Thirteen of these showed no antagonistic activity in vitro, which depends on the secretion of antibacterial compounds. However, they exhibited antibacterial activity via cell‐to‐cell contacts mimicked by co‐culture on agar plates. Through biocontrol tests on plants, two isolates, KBA13 and KBA19, demonstrated their effectiveness by protecting kiwifruit branches from Psa infection. Using KBA19, identified as Pantoea endophytica, as a representative, we found that this bacterium uses the type VI secretion system (T6SS) as the main contact‐dependent antibacterial weapon that acts via translocating toxic effector proteins into Psa cells to induce cell death, and that this capacity expressed by KBA19 is common to various Psa strains from different countries. Our findings highlight a new strategy to identify efficient biocontrol agents that use the T6SS to function in an antibacterial metabolite‐independent manner to control wood diseases.

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“…Additionally, pollen acts as a niche for bacteria colonization while insects like bees facilitate transportation of both beneficial and pathogenic bacteria during the pollination process [50,51]. Phyllosphere bacteria play a pivotal role in the carbon and nitrogen cycling of ecosystems, growth promotion, stress resistance, and pathogens control [52][53][54][55]. The volatile compounds emitted by plants, such as methanol and methane, have a significant impact on global climate change.…”

Section: Source and Function Of Pgpbmentioning

confidence: 99%

Bacterial Strategies for Improving the Yield, Quality, and Adaptability of Oil Crops

Ma,

Luo,

Chen

et al. 2023

Agriculture

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Oil crops are the second most cultivated economic crop in the world after food crops, and they are an important source of both edible and industrial oil. The growth of oil crops is limited by biotic and abiotic stresses, which hinder their yield and quality. Among all the agronomic measures, plant growth promoting bacteria (PGPB) play a crucial role in improving the yield, quality, and adaptability of oil crops. In this review, we considered the recent research on the sources of beneficial bacteria and their interactions with and influences on host plants, with a focus on summarizing the important roles and molecular mechanisms of PGPB in promoting growth and resisting biotic and abiotic stresses in oil crops. Finally, we outlined the current opportunities and challenges of microbial strategies for the improvement of the yield, quality, and adaptability of oil crops, providing a theoretical basis for the future use of microbial inoculants in these crops.

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Phyllosphere microbiome induces host metabolic defence against rice false-smut disease

Cited by 44 publications

References 67 publications

Nanoenabled Enhancement of Plant Tolerance to Heat and Drought Stress on Molecular Response

Nanoenabled Enhancement of Plant Tolerance to Heat and Drought Stress on Molecular Response

Adapting the inoculation methods of kiwifruit canker disease to identify efficient biocontrol bacteria from branch microbiome

Bacterial Strategies for Improving the Yield, Quality, and Adaptability of Oil Crops

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