SlMYC2 are required for methyl jasmonate-induced tomato fruit resistance to Botrytis cinerea

Min, Dedong; Li, Fujun; Cui, Xueying; Zhou, Jiawei; Li, Jiaozhuo; Ai, Wen; Shu, Pan; Zhang, Xinhua; Li, Xiaoan; Meng, Demei; Guo, Yaping; Li, Jian

doi:10.1016/j.foodchem.2019.125901

Cited by 61 publications

(28 citation statements)

References 39 publications

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“…JA/ET signaling is required predominantly for resistance against necrotrophic pathogens and herbivores [ 43 ]. Fungal pathogen attack and other elicitors greatly increase levels of endogenous JA and methyl jasmonate (MeJA) [ 46 , 119 ], and JA signaling is crucial for HIR [ 120 ]. A core module of JA signaling in Arabidopsis contains three components: the F-box protein CORONATIN INSENSITIVE1 (COI1, jasmonate receptor), JASMONATE-ZIM DOMAIN (JAZ) proteins (transcriptional repressors), and a basic helix–loop–helix (bHLH)-type TF MYC2 [ 121 – 123 ].…”

Section: Defense Responses Of Horticultural Crops To Fungal Pathogensmentioning

confidence: 99%

Molecular mechanisms underlying multi-level defense responses of horticultural crops to fungal pathogens

Chen

et al. 2022

Horticulture Research

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The horticultural industry helps to enrich and improve the human diet while contributing to growth of the agricultural economy. However, fungal diseases of horticultural crops frequently occur during pre- and post-harvest periods, reducing yields and crop quality and causing huge economic losses and wasted food. Outcomes of fungal diseases depend on both horticultural plant defense responses and fungal pathogenicity. Plant defense responses are highly sophisticated and are generally divided into preformed and induced defense responses. Preformed defense responses include both physical barriers and phytochemicals, which are the first line of protection. Induced defense responses, which include innate immunity (pattern-triggered immunity and effector-triggered immunity), local defense responses, and systemic defense signaling, are triggered to counterstrike fungal pathogens. Therefore, to develop regulatory strategies for horticultural plant resistance, a comprehensive understanding of defense responses and their underlying mechanisms is critical. Recently, integrated multi-omics analyses, CRISPR-Cas9-based gene editing, high-throughput sequencing, and data mining have greatly contributed to identification and functional determination of novel phytochemicals, regulatory factors, and signaling molecules and their signaling pathways in plant resistance. In this review, research progress on defense responses of horticultural crops to fungal pathogens and novel regulatory strategies to regulate induction of plant resistance are summarized, and then, the problems, challenges, and future research directions are examined.

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Section: Defense Responses Of Horticultural Crops To Fungal Pathogensmentioning

confidence: 99%

Molecular mechanisms underlying multi-level defense responses of horticultural crops to fungal pathogens

Chen

et al. 2022

Horticulture Research

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“…B. cinerea has a wide host range, and is the main pathogen of apples ( Malus domestica Borkh. ), 70 grapes ( Vitis vinifera L.), 71 strawberries, 10,72 guava, 31 tomatoes, 29 and so on, and causes catastrophic economic losses. Infestation of B. cinerea can occur at different stages (from seedling to fruit ripening stages) 73 .…”

Section: Main Pathogens Of Postharvest Fruit and Vegetables And Theirmentioning

confidence: 99%

Potential of microbial endophytes to enhance the resistance to postharvest diseases of fruit and vegetables

Huang

Ren

et al. 2020

J Sci Food Agric

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Food loss of fruit and vegetables caused by postharvest diseases is a major issue worldwide. The method used to prevent and control postharvest diseases is usually to use chemical fungicides, but long‐term and large‐scale use will make the pathogens resistant and potentially have a negative impact on human health and the ecological environment. Therefore, finding a safe and effective biological control method instead of chemical control is a hot research topic in recent years. Endophytes, colonizing plants asymptomatically, can promote the growth of the hosts and enhance their resistance. The use of endophytes as biological control agents for postharvest diseases of fruit and vegetables has attracted increasing attention in the last 20 years. Compared with chemical control, endophytes have the advantages of being more environmentally friendly, sustainable, and safer. However, there are relatively few relevant studies, so herein we summarize the available literature. This review focuses mainly on the recent progress of using endophytes to enhance the resistance of postharvest fruit and vegetables to diseases, with the emphasis on the possible mechanisms and the potential applications. Furthermore, this article suggests future areas for study using antagonistic endophytes to prevent and control fruit and vegetable postharvest diseases: (i) screening more potential broad‐spectrum anti‐pathogen endophytes and their metabolic active substances by the method of macrogenomics; (ii) elucidating the underlining molecular mechanism among endophytes, harvested vegetables and fruit, pathogens, and microbial communities; (iii) needing more application research to overcome the difficulties of commercialization practice. © 2020 Society of Chemical Industry

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“…JA signalling activates a diverse group of transcription factors regulating the biosynthesis of several classes of specialised metabolites. Specialised metabolites such as nicotine in Nicotiana tabacum, artemisinin in Artemisia annua, terpenoid indole alkaloids in Catharanthus roseus, withanolides in Withania somnifera and a-tomatine in tomato were shown to be induced upon JA treatment (Chen et al, 2019;Wasternack & Strnad, 2019;Min et al, 2020). In tomato, a-tomatine is the principal SGA in green tissues and its biosynthesis was extensively studied in the last decade (Fig.…”

Section: Introductionmentioning

confidence: 99%

Steroidal alkaloids defence metabolism and plant growth are modulated by the joint action of gibberellin and jasmonate signalling

et al. 2021

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Steroidal glycoalkaloids (SGAs) are protective metabolites constitutively produced by Solanaceae species. Genes and enzymes generating the vast structural diversity of SGAs have been largely identified. Yet, mechanisms of hormone pathways coordinating defence (jasmonate; JA) and growth (gibberellin; GA) controlling SGAs metabolism remain unclear.We used tomato to decipher the hormonal regulation of SGAs metabolism during growth vs defence tradeoff. This was performed by genetic and biochemical characterisation of different JA and GA pathways components, coupled with in vitro experiments to elucidate the crosstalk between these hormone pathways mediating SGAs metabolism.We discovered that reduced active JA results in decreased SGA production, while low levels of GA or its receptor led to elevated SGA accumulation. We showed that MYC1 and MYC2 transcription factors mediate the JA/GA crosstalk by transcriptional activation of SGA biosynthesis and GA catabolism genes. Furthermore, MYC1 and MYC2 transcriptionally regulate the GA signalling suppressor DELLA that by itself interferes in JA-mediated SGA control by modulating MYC activity through protein-protein interaction. Chemical and fungal pathogen treatments reinforced the concept of JA/GA crosstalk during SGA metabolism.These findings revealed the mechanism of JA/GA interplay in SGA biosynthesis to balance the cost of chemical defence with growth.

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SlMYC2 are required for methyl jasmonate-induced tomato fruit resistance to Botrytis cinerea

Cited by 61 publications

References 39 publications

Molecular mechanisms underlying multi-level defense responses of horticultural crops to fungal pathogens

Molecular mechanisms underlying multi-level defense responses of horticultural crops to fungal pathogens

Potential of microbial endophytes to enhance the resistance to postharvest diseases of fruit and vegetables

Steroidal alkaloids defence metabolism and plant growth are modulated by the joint action of gibberellin and jasmonate signalling

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