MaJAZ1 Attenuates the MaLBD5-Mediated Transcriptional Activation of Jasmonate Biosynthesis Gene <i>MaAOC2</i> in Regulating Cold Tolerance of Banana Fruit

Ba, Liangjie; Kuang, Jian-fei; Chen, Jian-Ye; Lu, Wang-jin

doi:10.1021/acs.jafc.5b05005

Cited by 48 publications

(24 citation statements)

References 65 publications

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“…Two APETALA2 (AP2) factors interact with four JAZ repressors to regulate JA regulation of flowering times 40 . In bananas, MaJAZ1 physically interacts with MaLBD5, which co-regulates JA-mediated cold tolerance of the banana fruit 41 . In wheat, JAZ proteins modulate seed germination through interaction with ABI5 42 .…”

Section: Scientific Reports |mentioning

confidence: 99%

Genome-wide and expression pattern analysis of JAZ family involved in stress responses and postharvest processing treatments in Camellia sinensis

Chen

Wang

Sun

et al. 2020

Sci Rep

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the JASMONATE-ZIM DOMAIN (JAZ) family genes are key repressors in the jasmonic acid signal transduction pathway. Recently, the JAZ gene family has been systematically characterized in many plants. However, this gene family has not been explored in the tea plant. In this study, 13 CsJAZ genes were identified in the tea plant genome. Phylogenetic analysis showed that the JAZ proteins from tea and other plants clustered into 11 sub-groups. The CsJAZ gene transcriptional regulatory network predictive and expression pattern analyses suggest that these genes play vital roles in abiotic stress responses, phytohormone crosstalk and growth and development of the tea plant. in addition, the CsJAZ gene expression profiles were associated with tea postharvest processing. Our work provides a comprehensive understanding of the CsJAZ family and will help elucidate their contributions to tea quality during tea postharvest processing.Higher plants face a large number of severe challenges during their life cycles, including insect bites, pathogen infection, heavy metal stress, and water scarcity. However, as sessile organisms, plants have evolved sophisticated mechanisms to resist these problems and clever strategies to thrive in their ever-changing natural environments 1,2 . For plants, phytohormones are the most effective and fastest weapon in response to environmental stress. For example, jasmonic acid (JA) is widely known to play an important role in various biological processes in plants, including defense against herbivorous insect attack, flower initiation and plant morphogenesis [3][4][5] .There are at least two jasmonate synthesis pathways that exist in plants, namely octadecane pathway and hexadecanoid pathway, which begins with the release of α-linolenic acid (18:3n-3) and hexadecatrienoic acid (16:3n-3), respectively 6 . The unsaturated fatty acids are catalyzed by a series of enzymes then generates 12-oxo-10,15 (Z)-phytodienoic acid (OPDA), in the chloroplast 7 . Finally, JA is formed through OPDA reductase 3 (OPR3)-mediated reduction reaction and three rounds of β-oxidation 6 . Interestingly, an alternative pathway for JA biosynthesis was discovered. OPDA could enter the β-oxidation pathway to produce a direct precursor of JA and JA-lie in the absence of OPR3 8 . Moreover, the JA signal pathway has been deciphered 9,10 . It has been reported that the JA receptor is a co-receptor complex formed by JAZ protein, COI1 (CORONATINE INSENSITIVE1) protein and inositol pentakisphosphate 11 . Previous studies have revealed that the JA content is maintained at a relatively low level in plants under normal conditions, in which the JAZ repressor interacts with MYC2 to inhibit downstream insect-resistant or disease-resistant gene expression 12 . However, large amounts of JA accumulate in plant cells in response to abiotic or biotic stresses and are perceived by COI1 13,14 . Subsequently, JAZ proteins are degraded by COI1-mediated E3 ubiquitination. Then, the transcription activator MYC is relieved, which increases the expression o...

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Section: Scientific Reports |mentioning

confidence: 99%

Genome-wide and expression pattern analysis of JAZ family involved in stress responses and postharvest processing treatments in Camellia sinensis

Chen

Wang

Sun

et al. 2020

Sci Rep

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“…Banana is a typical climacteric fruit, characterized by a burst in respiration and a typical increase in ethylene biosynthesis that initiates ripening-associated processes. This, from an economic perspective, limits fruit shelf-life with rapid deterioration of peel color and pulp firmness ( Ba et al, 2016 ). For example, ripened bananas become unmarketable within 1–3 days at ambient temperature ( Ahmed and Palta, 2016 ).…”

Section: Introductionmentioning

confidence: 99%

The Banana Transcriptional Repressor MaDEAR1 Negatively Regulates Cell Wall-Modifying Genes Involved in Fruit Ripening

Fan

Kuang

et al. 2016

Front. Plant Sci.

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Ethylene plays an essential role in many biological processes including fruit ripening via modulation of ethylene signaling pathway. Ethylene Response Factors (ERFs) are key transcription factors (TFs) involved in ethylene perception and are divided into AP2, RAV, ERF, and DREB sub-families. Although a number of studies have implicated the involvement of DREB sub-family genes in stress responses, little is known about their roles in fruit ripening. In this study, we identified a DREB TF with a EAR motif, designated as MaDEAR1, which is a nucleus-localized transcriptional repressor. Expression analysis indicated that MaDEAR1 expression was repressed by ethylene, with reduced levels of histone H3 and H4 acetylation at its regulatory regions during fruit ripening. In addition, MaDEAR1 promoter activity was also suppressed in response to ethylene treatment. More importantly, MaDEAR1 directly binds to the DRE/CRT motifs in promoters of several cell wall-modifying genes including MaEXP1/3, MaPG1, MaXTH10, MaPL3, and MaPME3 associated with fruit softening during ripening and represses their activities. These data suggest that MaDEAR1 acts as a transcriptional repressor of cell wall-modifying genes, and may be negatively involved in ethylene-mediated ripening of banana fruit. Our findings provide new insights into the involvement of DREB TFs in the regulation of fruit ripening.

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“…Additionally, MtHB1, an ABA and salinity responsive transcription factor, was found to directly recognize a specific cis -acting element in the MtLBD1 promoter 68 . By contrast, several Sorghum bicolor LBD genes where highly induced under salt and drought stress conditions, suggesting a role in abiotic stress response 50 , whereas, in banana fruit, MaLBD5 expression was induced by cold and methyl jasmonate treatment 69 .…”

Section: Discussionmentioning

confidence: 88%

The LATERAL ORGAN BOUNDARIES Domain gene family in grapevine: genome-wide characterization and expression analyses during developmental processes and stress responses

Grimplet

Pimentel

Patrícia

et al. 2017

Sci Rep

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LATERAL ORGAN BOUNDARIES (LOB) DOMAIN (LBD) constitute a family of plant-specific transcription factors with key roles in the regulation of plant organ development, pollen development, plant regeneration, pathogen response, and anthocyanin and nitrogen metabolisms. However, the role of LBDs in fruit ripening and in grapevine (Vitis vinifera L.) development and stress responses is poorly documented. By performing a model curation of LBDs in the latest genome annotation 50 genes were identified. Phylogenetic analysis showed that LBD genes can be grouped into two classes mapping on 16 out of the 19 V. vinifera chromosomes. New gene subclasses were identified that have not been characterized in other species. Segmental and tandem duplications contributed significantly to the expansion and evolution of the LBD gene family in grapevine as noticed for other species. The analysis of cis-regulatory elements and transcription factor binding sites in the VviLBD promoter regions suggests the involvement of several hormones in the regulation of LBDs expression. Expression profiling suggest the involvement of LBD transcription factors in grapevine development, berry ripening and stress responses. Altogether this study provides valuable information and robust candidate genes for future functional analysis aiming to clarify mechanisms responsible for the onset of fruit ripening and fruit defense strategies.

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MaJAZ1 Attenuates the MaLBD5-Mediated Transcriptional Activation of Jasmonate Biosynthesis Gene MaAOC2 in Regulating Cold Tolerance of Banana Fruit

Cited by 48 publications

References 65 publications

Genome-wide and expression pattern analysis of JAZ family involved in stress responses and postharvest processing treatments in Camellia sinensis

Genome-wide and expression pattern analysis of JAZ family involved in stress responses and postharvest processing treatments in Camellia sinensis

The Banana Transcriptional Repressor MaDEAR1 Negatively Regulates Cell Wall-Modifying Genes Involved in Fruit Ripening

The LATERAL ORGAN BOUNDARIES Domain gene family in grapevine: genome-wide characterization and expression analyses during developmental processes and stress responses

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