Dipicolinic acid enhances kiwifruit resistance to <i>Botrytis cinerea</i> by promoting phenolics accumulation

Wang, Suyan; Pang, Yi-Bo; Tao, Yuan; Shi, Xin-Chi; Zhang, Yun-Jiao; Wang, Yanxia; Jiang, Yong‐Hui; Ji, Xinyu; Wang, Binglin; Herrera‐Balandrano, Daniela D.; Laborda, Pedro

doi:10.1002/ps.7496

Cited by 6 publications

(1 citation statement)

References 80 publications

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“…B. cinerea-infected strawberries were found to show increased content of hexadecanoic acid, octadecanoic acid, sucrose, and β-lyxopyranose [31]. Overall, different plant species showed various accumulations of metabolites upon B. cinerea infection [32], and the change in plant metabolites is an important plant response to B. cinerea.…”

Section: Change In Plant Metabolitesmentioning

confidence: 97%

Recent Advances in Mechanisms Underlying Defense Responses of Horticultural Crops to Botrytis cinerea

Li,

Cheng

2023

Horticulturae

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Horticultural crops are a crucial component of agriculture worldwide and have great economic value. The notorious plant fungal pathogen Botrytis cinerea can cause gray mold disease in over 200 horticultural crops, leading to severe economic losses. Investigating the mechanisms underlying plant defense responses to pathogens is crucial for developing new strategies for effectively controlling plant diseases, and much progress has occurred in the mechanisms underlying defense responses of horticultural crops to B. cinerea mainly due to the completion of genome sequencing and the establishment of efficient tools for functional genomics. In this review, recent progress in mechanisms underlying defense responses and natural products that can enhance the resistance of horticultural crops to B. cinerea are summarized, and future research directions are also discussed.

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Section: Change In Plant Metabolitesmentioning

confidence: 97%

Recent Advances in Mechanisms Underlying Defense Responses of Horticultural Crops to Botrytis cinerea

Li,

Cheng

2023

Horticulturae

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Dipicolinic acid reduces Epicoccum sorghinum symptoms on maize and inhibits tenuazonic acid biosynthesis

Ji,

Wang,

Zhang

et al. 2024

Pest Management Science

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BACKGROUNDEpicoccum sorghinum is a pathogenic fungus that causes leaf spot in a wide range of plants, including maize, and synthesizes the mycotoxin tenuazonic acid (TEA), which is carcinogenic. Despite the relevant economic and yield losses caused by E. sorghinum worldwide, methods for the control of this pathogen are lacking.RESULTSIn this work, the efficacy of Bacillus‐produced dipicolinic acid (DPA) for control of E. sorghinum was evaluated using in vitro and in vivo assays, and compared with the efficacy of three commercial fungicides, including carbendazim, prochloraz, and thiram. DPA inhibited E. sorghinum mycelial growth, and conidia germination, and produced important alterations in E. sorghinum hyphae. Interestingly, 10 mM DPA reduced TEA biosynthesis by 86.6%. Although DPA rapidly degraded on maize leaves, 10 mM DPA showed higher preventive (67.4% lesion length inhibition) and inhibitory (89.5% lesion length inhibition) efficacies for the control of E. sorghinum on maize leaves compared to the commercial fungicides.CONCLUSIONSCollectively, this study presents the first method for the control of E. sorghinum on maize and demonstrates that DPA application is a suitable approach to inhibit E. sorghinum symptoms in plants and TEA biosynthesis. © 2024 Society of Chemical Industry.

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Antifungal activity mechanisms of venturicidin A against Botrytis cinerea contributes to the control of gray mould

Hu,

Dong,

Jia

et al. 2024

Pest Management Science

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BACKGROUNDGray mould caused by Botrytis cinerea, an airborne phytopathogenic pathogen, infects many economically important fruits and vegetables. Secondary metabolic products of microorganisms are potential resources for developing fungicide alternatives. Venturicidin A (VentA) is produced by a biocontrol strain Streptomyces pratensis S10. Although a broad spectrum of antifungal activity has been reported for VentA, little is known about its antifungal mechanisms against B. cinerea.RESULTSVenturicidin A exhibited a strong hyphal inhibition of B. cinerea with an EC50 (effective concentration causing 50% growth inhibition) value of 1.08 μg mL−1 on PDA medium. Different concentrations of VentA inhibited spore germination with an inhibition rate of 49–86%. Venturicidin A also displayed protective and curative activity against the development of B. cinerea infection on tomato fruit, reducing disease incidence by ≈28–78%. Additionally, VentA effectively reduced the disease index and lesion length of gray mould on tomato plant. Meanwhile, VentA downregulated the expression levels of six genes related to pathogenicity in B. cinerea. As observed by scanning electron microscopy, B. cinerea spores and hyphae are abnormal after treatment with VentA. Propidium iodide staining revealed that VentA destroyed cell membrane integrity, causing cytoplasmic leakage. Furthermore, VentA induced accumulation of reactive oxygen species and upregulated the genes encoding subunits for NADPH oxidase in B. cinerea.CONCLUSIONThis study indicated that VentA displayed strong inhibitory activity against B. cinerea and effectively reduced gray mould disease. Thus, VentA has the potential to manage gray mould caused by B. cinerea. © 2024 Society of Chemical Industry.

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Dipicolinic acid enhances kiwifruit resistance to Botrytis cinerea by promoting phenolics accumulation

Cited by 6 publications

References 80 publications

Recent Advances in Mechanisms Underlying Defense Responses of Horticultural Crops to Botrytis cinerea

Recent Advances in Mechanisms Underlying Defense Responses of Horticultural Crops to Botrytis cinerea

Dipicolinic acid reduces Epicoccum sorghinum symptoms on maize and inhibits tenuazonic acid biosynthesis

Antifungal activity mechanisms of venturicidin A against Botrytis cinerea contributes to the control of gray mould

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