Ethylene Biosynthesis and Regulation in Plants

Xu, Juan; Zhang, Shuqun

doi:10.1007/978-94-017-9484-8_1

Cited by 49 publications

(52 citation statements)

References 125 publications

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“…In the present study, the expression of five ACS genes and one ACO gene was repressed after DADS treatment. ACS and ACO are involved in ethylene synthesis, and the down-regulation of these genes leads to reduced ethylene accumulation56. Interestingly, the dry weight of tomato root and aboveground parts and the length of the tomato root and shoot were all increased by DADS treatment (Supplementary Fig.…”

Section: Discussionmentioning

confidence: 98%

Transcriptomic insights into the allelopathic effects of the garlic allelochemical diallyl disulfide on tomato roots

Cheng

Meng

2016

Sci Rep

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Garlic is an allelopathic crop that can alleviate the obstacles to continuous cropping of vegetable crops. Diallyl disulfide (DADS), one of the most important allelochemicals in garlic, promotes tomato root growth. Therefore, the global transcriptome profiles of DADS-treated tomato roots over time were investigated to reveal the potential growth-promoting mechanisms. We detected 1828, 1296 and 1190 differentially expressed genes (DEGs) in the 4, 24 and 48 h samples, respectively. Most DEGs involved in assimilatory sulfate reduction and glutathione metabolism were up-regulated after short-term (4 h) DADS treatment. In addition, increased activity of defensive enzymes and up-regulation of six peroxidase genes were observed, suggesting that DADS could induce tomato resistance. In plant-pathogen interactions, DEGs related to calcium signaling were primarily inhibited, while those encoding pathogenesis-related proteins were primarily up-regulated. Although plant hormone synthesis and signal transduction were both significantly affected by DADS, the expression trends of the genes in these two pathways were conflicting. This research provides comprehensive information concerning the changes in the tomato root transcriptome affected by DADS and may help direct further studies on DADS-responsive genes to enhance the current understanding of the mechanisms by which DADS alleviates the obstacles to continuous cropping.

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Section: Discussionmentioning

confidence: 98%

Transcriptomic insights into the allelopathic effects of the garlic allelochemical diallyl disulfide on tomato roots

Cheng

Meng

2016

Sci Rep

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“…Under unstressed conditions, ethylene is synthesized from an activated form of Met in plants (Xu and Zhang, 2015). ACS converts S-adenosyl-methionine (SAM) to ACC, and the oxidization of ACC is then executed by ACC oxidase (ACO) to form ethylene (Fig.…”

Section: Ethylene and Plant Responses To Hm Stressmentioning

confidence: 99%

“…1). ACS and ACO, the two major enzymes in ethylene biosynthesis, are encoded by multigene families, which are also the primary regulation points in the ethylene biosynthetic pathway (Xu and Zhang, 2015). HM stress increases the activity of these two enzymes, resulting in increased ethylene production (Schellingen et al, 2014;Khan et al, 2015b).…”

Section: Ethylene and Plant Responses To Hm Stressmentioning

confidence: 99%

Role of Ethylene and Its Cross Talk with Other Signaling Molecules in Plant Responses to Heavy Metal Stress

et al. 2015

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Excessive heavy metals (HMs) in agricultural lands cause toxicities to plants, resulting in declines in crop productivity. Recent advances in ethylene biology research have established that ethylene is not only responsible for many important physiological activities in plants but also plays a pivotal role in HM stress tolerance. The manipulation of ethylene in plants to cope with HM stress through various approaches targeting either ethylene biosynthesis or the ethylene signaling pathway has brought promising outcomes. This review covers ethylene production and signal transduction in plant responses to HM stress, cross talk between ethylene and other signaling molecules under adverse HM stress conditions, and approaches to modify ethylene action to improve HM tolerance. From our current understanding about ethylene and its regulatory activities, it is believed that the optimization of endogenous ethylene levels in plants under HM stress would pave the way for developing transgenic crops with improved HM tolerance.

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“…ET is the first gaseous hormone identified in plants that exhibited profound effects on various cellular processes including fruit ripening, senescence, and stress response. Research during the past few decades was mainly focused on ET biosynthetic pathways, identification of ET receptors, its signaling components, and its cross‐talk with other plant hormones . Interestingly, some of the ET functions overlap with the ABA functions such as seed germination and early seedling establishment, though they also function antagonistically to each other .…”

Section: Introductionmentioning

confidence: 99%

A Multi‐Omics Analysis of Glycine max Leaves Reveals Alteration in Flavonoid and Isoflavonoid Metabolism Upon Ethylene and Abscisic Acid Treatment

et al. 2018

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Phytohormones are central to plant growth and development. Despite the advancement in our knowledge of hormone signaling, downstream targets, and their interactions upon hormones action remain largely fragmented, especially at the protein and metabolite levels. With an aim to get new insight into the effects of two hormones, ethylene (ET) and abscisic acid (ABA), this study utilizes an integrated proteomics and metabolomics approach to investigate their individual and combined (ABA+ET) signaling in soybean leaves. Targeting low-abundance proteins, our previously established protamine sulfate precipitation method was applied, followed by label-free quantification of identified proteins. A total of 4129 unique protein groups including 1083 differentially modulated in one (individual) or other (combined) treatments were discerned. Functional annotation of the identified proteins showed an increased abundance of proteins related to the flavonoid and isoflavonoid biosynthesis and MAPK signaling pathway in response to ET treatment. HPLC analysis showed an accumulation of isoflavones (genistin, daidzein, and genistein) upon ET treatment, in agreement with the proteomics results. A metabolome analysis assigned 79 metabolites and further confirmed the accumulation of flavonoids and isoflavonoids in response to ET. A potential cross-talk between ET and MAPK signaling, leading to the accumulation of flavonoids and isoflavonoids in soybean leaves is suggested.

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Ethylene Biosynthesis and Regulation in Plants

Cited by 49 publications

References 125 publications

Transcriptomic insights into the allelopathic effects of the garlic allelochemical diallyl disulfide on tomato roots

Transcriptomic insights into the allelopathic effects of the garlic allelochemical diallyl disulfide on tomato roots

Role of Ethylene and Its Cross Talk with Other Signaling Molecules in Plant Responses to Heavy Metal Stress

A Multi‐Omics Analysis of Glycine max Leaves Reveals Alteration in Flavonoid and Isoflavonoid Metabolism Upon Ethylene and Abscisic Acid Treatment

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