Antagonistic Activity and Mechanism of <i>Bacillus subtilis</i> XZ16-1 Suppression of Wheat Powdery Mildew and Growth Promotion of Wheat

Yi, Yanjie; Yin, Yanan; Yang, Yingao; Liang, Yuqian; Shan, Youtian; Zhang, Changfu; Zhang, Yurong; Liang, Zhenpu

doi:10.1094/phyto-04-22-0118-r

Cited by 11 publications

(4 citation statements)

References 58 publications

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“…The extract and culture filtrate of B. subtilis XZ16-1 also exhibited significant inhibition of B. graminis spore germination. In comparison to the chemical fungicide triadimefon, the control effects of 100% culture filtrate on B. graminis in wheat were 81% and 83%, respectively [ 150 ]. In vitro, B. velezensis BZR 517 and BZR 336 g had an antagonistic effect against P. tritici-repentis , inhibiting mycelial growth by 72 to 94% and inducing degenerative changes [ 57 ].…”

Section: Current Control Strategies For Cereal Leaf Pathogensmentioning

confidence: 99%

Beneficial Microorganisms as Bioprotectants against Foliar Diseases of Cereals: A Review

Dehbi,

Achemrk,

Ezzouggari

et al. 2023

Plants

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Cereal production plays a major role in both animal and human diets throughout the world. However, cereal crops are vulnerable to attacks by fungal pathogens on the foliage, disrupting their biological cycle and photosynthesis, which can reduce yields by 15–20% or even 60%. Consumers are concerned about the excessive use of synthetic pesticides given their harmful effects on human health and the environment. As a result, the search for alternative solutions to protect crops has attracted the interest of scientists around the world. Among these solutions, biological control using beneficial microorganisms has taken on considerable importance, and several biological control agents (BCAs) have been studied, including species belonging to the genera Bacillus, Pseudomonas, Streptomyces, Trichoderma, Cladosporium, and Epicoccum, most of which include plants of growth-promoting rhizobacteria (PGPRs). Bacillus has proved to be a broad-spectrum agent against these leaf cereal diseases. Interaction between plant and beneficial agents occurs as direct mycoparasitism or hyperparasitism by a mixed pathway via the secretion of lytic enzymes, growth enzymes, and antibiotics, or by an indirect interaction involving competition for nutrients or space and the induction of host resistance (systemic acquired resistance (SAR) or induced systemic resistance (ISR) pathway). We mainly demonstrate the role of BCAs in the defense against fungal diseases of cereal leaves. To enhance a solution-based crop protection approach, it is also important to understand the mechanism of action of BCAs/molecules/plants. Research in the field of preventing cereal diseases is still ongoing.

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Section: Current Control Strategies For Cereal Leaf Pathogensmentioning

confidence: 99%

Beneficial Microorganisms as Bioprotectants against Foliar Diseases of Cereals: A Review

Dehbi,

Achemrk,

Ezzouggari

et al. 2023

Plants

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“…B. velezensis is known to counteract FHB and wheat powdery mildew (Palazzini et al, 2016;Chen et al, 2018;Yi et al, 2022). The effect of Bacillus spp.…”

Section: Introductionmentioning

confidence: 99%

“…In monocots, Fusarium graminearum (Fusarium Head Blight: FHB), wheat powdery mildew ( Blumeria gramini s) and wheat blast ( Magnaporthe oryzae Triticum pathotype: MoT) can result in drastic (up to 100%) yield losses, threatening food security (Cruz & Valent, 2017). B. velezensis is known to counteract FHB and wheat powdery mildew (Palazzini et al, 2016; Chen et al, 2018; Yi et al, 2022). The effect of Bacillus spp.…”

Section: Introductionmentioning

confidence: 99%

Exploring Synergistic Effects of Levan and Levan‐MetabolizingBacillaceae in Promoting Growth and Enhancing Immunity of Tomato and Wheat

Jiao,

Tran‐Minh,

Nasir

et al. 2024

Physiologia Plantarum

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Boosting plant immunity by priming agents can lower agrochemical dependency in plant production. Levan and levan‐derived oligosaccharides (LOS) act as priming agents against biotic stress in several crops. Additionally, beneficial microbes can promote plant growth and protect against fungal diseases. This study assessed possible synergistic effects caused by levan, LOS and five levan‐ and LOS‐metabolizing Bacillaceae (Bacillus and Priestia) strains in tomato and wheat. Leaf and seed defense priming assays were conducted in non‐soil (semi‐sterile substrate) and soil‐based systems, focusing on tomato‐Botrytis cinerea and wheat‐Magnaporthe oryzae Triticum (MoT) pathosystems. In the non‐soil system, seed defense priming with levan, the strains (especially Bacillus velezensis GA1), or their combination significantly promoted tomato growth and protection against B. cinerea. While no growth stimulatory effects were observed for wheat, disease protective effects were also observed in the wheat‐MoT pathosystem. When grown in soil and subjected to leaf defense priming, tomato plants co‐applied with levan and the bacterial strains showed increased resistance to B. cinerea compared with plants treated with levan or single strains, and these effects were synergistic in some cases. For seed defense priming in soil, more synergistic effects on disease tolerance were observed in a non‐fertilized soil as compared to a fertilized soil, suggesting that potential prebiotic effects of levan are more prominent in poor soils. The potential of using combinations of Bacilliaceae and levan in sustainable agriculture is discussed.

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“…Therefore, it is crucial to develop more suitable and promising alternative control strategies [ 5 ]. Along with selection of resistant plants, biological control by beneficial microorganisms is increasingly considered as one of the most promising technologies for its sustainability, environment-friendliness, and cost-effectiveness [ 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

Wild Rosa Endophyte M7SB41-Mediated Host Plant’s Powdery Mildew Resistance

Zhao¹,

Mao

Tang

et al. 2023

JoF

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Our previous studies indicated that endophyte M7SB41 (Seimatosporium sp.) can significantly enhance host plants powdery mildew (PM) resistance. To recover the mechanisms, differentially expressed genes (DEGs) were compared between E+ (endophte-inoculated) and E− (endophyte-free) plants by transcriptomics. A total of 4094, 1200 and 2319 DEGs between E+ and E− were identified at 0, 24, and 72 h after plants had been infected with PM pathogen Golovinomyces cichoracearum, respectively. Gene expression pattern analysis displayed a considerable difference and temporality in response to PM stress between the two groups. Transcriptional profiling analysis revealed that M7SB41 induced plant resistance to PM through Ca2+ signaling, salicylic acid (SA) signaling, and the phenylpropanoid biosynthesis pathway. In particular, we investigated the role and the timing of the SA and jasmonic acid (JA)-regulated defensive pathways. Both transcriptomes and pot experiments showed that SA-signaling may play a prominent role in PM resistance conferred by M7SB41. Additionally, the colonization of M7SB41 could effectively increase the activities and the expression of defense-related enzymes under PM pathogen stress. Meanwhile, our study revealed reliable candidate genes from TGA (TGACG motif-binding factor), WRKY, and pathogenesis-related genes related to M7SB41-mediate resistance. These findings offer a novel insight into the mechanisms of endophytes in activating plant defense responses.

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Antagonistic Activity and Mechanism of Bacillus subtilis XZ16-1 Suppression of Wheat Powdery Mildew and Growth Promotion of Wheat

Cited by 11 publications

References 58 publications

Beneficial Microorganisms as Bioprotectants against Foliar Diseases of Cereals: A Review

Beneficial Microorganisms as Bioprotectants against Foliar Diseases of Cereals: A Review

Exploring Synergistic Effects of Levan and Levan‐MetabolizingBacillaceae in Promoting Growth and Enhancing Immunity of Tomato and Wheat

Wild Rosa Endophyte M7SB41-Mediated Host Plant’s Powdery Mildew Resistance

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