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https://www.readbyqxmd.com/read/28716006/ethylene-induces-combinatorial-effects-of-histone-h3-acetylation-in-gene-expression-in-arabidopsis
#1
Likai Wang, Fan Zhang, Siddharth Rode, Kevin K Chin, Eun Esther Ko, Jonghwan Kim, Vishwanath R Iyer, Hong Qiao
BACKGROUND: Histone acetylation and deacetylation are essential for gene regulation and have been implicated in the regulation of plant hormone responses. Many studies have indicated the role of histone acetylation in ethylene signaling; however, few studies have investigated how ethylene signaling regulates the genomic landscape of chromatin states. Recently, we found that ethylene can specifically elevate histone H3K14 acetylation and the non-canonical histone H3K23 acetylation in etiolated seedlings and the gene activation is positively associated with the elevation of H3K14Ac and H3K23Ac in response to ethylene...
July 17, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28714880/upregulation-of-phosphatidylinositol-3-kinase-pi3k-enhances-ethylene-biosynthesis-and-accelerates-flower-senescence-in-transgenic-nicotiana-tabacum-l
#2
Mohd Sabri Pak Dek, Priya Padmanabhan, Sherif Sherif, Jayasankar Subramanian, And Gopinadhan Paliyath
Phosphatidylinositol 3-kinase (PI3K) is a key enzyme that phosphorylates phosphatidylinositol at 3'-hydroxyl position of the inositol head group initiating the generation of several phosphorylated phosphatidylinositols, collectively referred to as phosphoinositides. The function of PI3K in plant senescence and ethylene signal transduction process was studied by expression of Solanum lycopersicum PI3K in transgenic Nicotiana tabacum, and delineating its effect on flower senescence. Detached flowers of transgenic tobacco plants with overexpressed Sl-PI3K (OX) displayed accelerated senescence and reduced longevity, when compared to the flowers of wild type plants...
July 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28708312/arabidopsis-cpr5-regulates-ethylene-signaling-via-molecular-association-with-the-etr1-receptor
#3
Feifei Wang, Lijuan Wang, Longfei Qiao, Jiacai Chen, Maria Belen Pappa, Haixia Pei, Tao Zhang, Caren Chang, Chun-Hai Dong
The plant hormone ethylene plays various functions in plant growth, development and response to environmental stress. Ethylene is perceived by membrane-bound ethylene receptors, and among the homologous receptors in Arabidopsis, the ETR1 ethylene receptor plays a major role. The present study provides evidence demonstrating that Arabidopsis CPR5 functions as a novel ETR1 receptor-interacting protein in regulating ethylene response and signaling. Yeast split ubiquitin assays and bi-fluorescence complementation studies in plant cells indicated that CPR5 directly interacts with the ETR1 receptor...
July 14, 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/28680438/abscisic-acid-is-a-major-regulator-of-grape-berry-ripening-onset-new-insights-into-aba-signaling-network
#4
Stefania Pilati, Giorgia Bagagli, Paolo Sonego, Marco Moretto, Daniele Brazzale, Giulia Castorina, Laura Simoni, Chiara Tonelli, Graziano Guella, Kristof Engelen, Massimo Galbiati, Claudio Moser
Grapevine is a world-wide cultivated economically relevant crop. The process of berry ripening is non-climacteric and does not rely on the sole ethylene signal. Abscisic acid (ABA) is recognized as an important hormone of ripening inception and color development in ripening berries. In order to elucidate the effect of this signal at the molecular level, pre-véraison berries were treated ex vivo for 20 h with 0.2 mM ABA and berry skin transcriptional modulation was studied by RNA-seq after the treatment and 24 h later, in the absence of exogenous ABA...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28664538/integrative-analysis-of-circrnas-acting-as-cernas-involved-in-ethylene-pathway-in-tomato
#5
Yunxiang Wang, Qing Wang, Lipu Gao, Benzhong Zhu, Yunbo Luo, Zhiping Deng, Jinhua Zuo
Circular RNAs (circRNAs) are a large class of non-coding endogenous RNAs that could act as ceRNAs (Competing endogenous RNAs) to terminate the mRNA targets' suppression of miRNAs. To elucidate the intricate regulatory roles of circRNAs in the ethylene pathway in tomato fruit, deep sequencing and bioinformatics methods were performed. After strict screening, a total of 318 circRNAs were identified. Among these circRNAs, 282 were significantly differentially expressed among wild type and sense-/antisense-LeERF1 transgenic tomato fruits...
June 29, 2017: Physiologia Plantarum
https://www.readbyqxmd.com/read/28662156/hydrogen-sulfide-alleviates-postharvest-ripening-and-senescence-of-banana-by-antagonizing-the-effect-of-ethylene
#6
Yun Ge, Kang-Di Hu, Sha-Sha Wang, Lan-Ying Hu, Xiao-Yan Chen, Yan-Hong Li, Ying Yang, Feng Yang, Hua Zhang
Accumulating evidence shows that hydrogen sulfide (H2S) acts as a multifunctional signaling molecule in plants, whereas the interaction between H2S and ethylene is still unclear. In the present study we investigated the role of H2S in ethylene-promoted banana ripening and senescence by the application of ethylene released from 1.0 g·L-1 ethephon solution or H2S with 1 mM sodium hydrosulfide (NaHS) as the donor or in combination. Fumigation with ethylene was found to accelerate banana ripening and H2S treatment effectively alleviated ethylene-induced banana peel yellowing and fruit softening in parallel with decreased activity of polygalacturonase (PG)...
2017: PloS One
https://www.readbyqxmd.com/read/28660363/adaptation-of-root-growth-to-increased-ambient-temperature-requires-auxin-and-ethylene-coordination-in-arabidopsis
#7
Qionghui Fei, Shaodong Wei, Zhaoyang Zhou, Huanhuan Gao, Xiaofeng Li
A fresh look at the roles of auxin, ethylene, and polar auxin transport during the plant root growth response to warmer ambient temperature (AT). The ambient temperature (AT) affects plant growth and development. Plants can sense changes in the AT, but how this change is transduced into a plant root growth response is still relatively unclear. Here, we found that the Arabidopsis ckrc1-1 mutant is sensitive to higher AT. At 27 °C, the ckrc1-1 root length is significantly shortened and the root gravity defect is enhanced, changes that can be restored with addition of 1-naphthaleneacetic acid, but not indole-3-acetic acid (IAA)...
June 28, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28659933/genome-wide-identification-and-expression-profiling-of-ethylene-receptor-genes-during-soybean-nodulation
#8
Youning Wang, Jinhong Yuan, Wei Yang, Lin Zhu, Chao Su, Xiaodi Wang, Haiyan Wu, Zhengxi Sun, Xia Li
It has long been known that the gaseous plant hormone ethylene plays a key role in nodulation in legumes. The perception of ethylene by a family of five membrane-localized receptors is necessary to trigger the ethylene signaling pathway, which regulates various biological responses in Arabidopsis. However, a systematic analysis of the ethylene receptors in leguminous plants and their roles in nodule development is lacking. In this study, we performed a characterization of ethylene receptor genes based on the latest Glycine max genome sequence and a public microarray database...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28655869/analysis-of-the-grape-vitis-vinifera-l-thaumatin-like-protein-tlp-gene-family-and-demonstration-that-tlp29-contributes-to-disease-resistance
#9
Xiaoxiao Yan, Hengbo Qiao, Xiuming Zhang, Chunlei Guo, Mengnan Wang, Yuejin Wang, Xiping Wang
Thaumatin-like protein (TLP) is present as a large family in plants, and individual members play different roles in various responses to biotic and abiotic stresses. Here we studied the role of 33 putative grape (Vitis vinifera L.) TLP genes (VvTLP) in grape disease resistance. Heat maps analysis compared the expression profiles of 33 genes in disease resistant and susceptible grape species infected with anthracnose (Elsinoe ampelina), powdery mildew (Erysiphe necator) or Botrytis cinerea. Among these 33 genes, the expression level of TLP29 increased following the three pathogens inoculations, and its homolog from the disease resistant Chinese wild grape V...
June 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28626940/overexpression-of-hevea-brasiliensis-ethylene-response-factor-hberf-ixc5-enhances-growth-tolerance-to-abiotic-stress-and-affects-laticifer-differentiation
#10
Retno Lestari, Maryannick Rio, Florence Martin, Julie Leclercq, Natthakorn Woraathasin, Sandrine Roques, Florence Dessailly, Anne Clément-Vidal, Christine Sanier, Denis Fabre, Sémi Melliti, Sony Suharsono, Pascal Montoro
Ethylene response factor 1 (ERF1) is an essential integrator of the jasmonate and ethylene signalling pathways coordinating a large number of genes involved in plant defences. Its orthologue in Hevea brasiliensis, HbERF-IXc5, has been assumed to play a major role in laticifer metabolism and tolerance to harvesting stress for better latex production. This paper set out to establish and characterize rubber transgenic lines overexpressing HbERF-IXc5. Overexpression of HbERF-IXc5 dramatically enhanced plant growth and enabled plants to maintain some ecophysiological parameters in response to abiotic stress such as water deficit, cold and salt treatments...
June 19, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28615681/genome-wide-analysis-of-banana-mads-box-family-closely-related-to-fruit-development-and-ripening
#11
Juhua Liu, Jing Zhang, Jianbin Zhang, Hongxia Miao, Jingyi Wang, Pengzhao Gao, Wei Hu, Caihong Jia, Zhuo Wang, Biyu Xu, Zhiqiang Jin
Proteins encoded by MADS-box genes are important transcription factors involved in the regulation of flowering plant growth and development. Currently, no systematic information exists regarding the MADS-box family in the important tropical fruit banana. Ninety-six MADS-box genes were identified from the banana (Pahang) A genome. Phylogenetic analysis indicated that Musa acuminata MCM1-AGAMOUS- DEFICIENS-SRF (MaMADS) could be divided into MIKC(c), MIKC*, Mα/β and Mγ groups. MIKC(c) could be further divided into 11 subfamilies, which was further supported by conserved motif and gene structure analyses...
June 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28600557/regulatory-functions-of-cellular-energy-sensor-snf1-related-kinase1-for-leaf-senescence-delay-through-ethylene-insensitive3-repression
#12
Geun-Don Kim, Young-Hee Cho, Sang-Dong Yoo
Aging of living organisms is governed by intrinsic developmental programs, of which progression is often under the regulation of their cellular energy status. For example, calorie restriction is known to slow down aging of heterotrophic organisms from yeasts to mammals. In autotrophic plants cellular energy deprivation by perturbation of photosynthesis or sugar metabolism is also shown to induce senescence delay. However, the underlying molecular and biochemical mechanisms remain elusive. Our plant cell-based functional and biochemical assays have demonstrated that SNF1-RELATED KINASE1 (SnRK1) directly interacts, phosphorylates, and destabilizes the key transcription factor ETHYLENE INSENSITIVE3 (EIN3) in senescence-promoting hormone ethylene signaling...
June 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28600354/synergistic-action-of-auxin-and-cytokinin-mediates-aluminum-induced-root-growth-inhibition-in-arabidopsis
#13
Zhong-Bao Yang, Guangchao Liu, Jiajia Liu, Bing Zhang, Wenjing Meng, Bruno Müller, Ken-Ichiro Hayashi, Xiansheng Zhang, Zhong Zhao, Ive De Smet, Zhaojun Ding
Auxin acts synergistically with cytokinin to control the shoot stem-cell niche, while both hormones act antagonistically to maintain the root meristem. In aluminum (Al) stress-induced root growth inhibition, auxin plays an important role. However, the role of cytokinin in this process is not well understood. In this study, we show that cytokinin enhances root growth inhibition under stress by mediating Al-induced auxin signaling. Al stress triggers a local cytokinin response in the root-apex transition zone (TZ) that depends on IPTs, which encode adenosine phosphate isopentenyltransferases and regulate cytokinin biosynthesis...
July 2017: EMBO Reports
https://www.readbyqxmd.com/read/28584283/phytohormone-ethylene-responsive-arabidopsis-organ-growth-under-light-is-in-the-fine-regulation-of-photosystem-ii-deficiency-inducible-akin10-expression
#14
Geun-Don Kim, Young-Hee Cho, Sang-Dong Yoo
For photoautotrophic plants, light-dependent photosynthesis plays an important role in organismal growth and development. Under light, Arabidopsis hypocotyl growth is promoted by the phytohormone ethylene. Despite well-characterized ethylene signaling pathways, the functions of light in the hormone-inducible growth response still remain elusive. Our cell-based functional and plant-system-based genetic analyses with biophysical and chemical tools showed that a chemical blockade of photosystem (PS) II activity affects ethylene-induced hypocotyl response under light...
June 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28550149/the-jasmonate-activated-transcription-factor-mdmyc2-regulates-ethylene-response-factor-and-ethylene-biosynthetic-genes-to-promote-ethylene-biosynthesis-during-apple-fruit-ripening
#15
Tong Li, Yaxiu Xu, Lichao Zhang, Yinglin Ji, Dongmei Tan, Hui Yuan, Aide Wang
The plant hormone ethylene is critical for ripening in climacteric fruits, including apple (Malus domestica). Jasmonate (JA) promotes ethylene biosynthesis in apple fruit, but the underlying molecular mechanism is unclear. Here, we found that JA-induced ethylene production in apple fruit is dependent on the expression of MdACS1, an ACC synthase gene involved in ethylene biosynthesis. The expression of MdMYC2, encoding a transcription factor involved in the JA signaling pathway, was enhanced by MeJA treatment in apple fruits, and MdMYC2 directly bound to the promoters of both MdACS1 and the ACC oxidase gene MdACO1 and enhanced their transcription...
June 2017: Plant Cell
https://www.readbyqxmd.com/read/28542282/expression-patterns-of-members-of-the-ethylene-signaling-related-gene-families-in-response-to-dehydration-stresses-in-cassava
#16
Meng Yun Ren, Ren Jun Feng, Hou Rui Shi, Li Fang Lu, Tian Yan Yun, Ming Peng, Xiao Guan, Heng Zhang, Jing Yi Wang, Xi Yan Zhang, Cheng Liang Li, Yan Jun Chen, Peng He, Yin Dong Zhang, Jiang Hui Xie
Drought is the one of the most important environment stresses that restricts crop yield worldwide. Cassava (Manihot esculenta Crantz) is an important food and energy crop that has many desirable traits such as drought, heat and low nutrients tolerance. However, the mechanisms underlying drought tolerance in cassava are unclear. Ethylene signaling pathway, from the upstream receptors to the downstream transcription factors, plays important roles in environmental stress responses during plant growth and development...
2017: PloS One
https://www.readbyqxmd.com/read/28541511/molecular-association-of-arabidopsis-rth-with-its-homolog-rte1-in-regulating-ethylene-signaling
#17
Fangfang Zheng, Xiankui Cui, Maximo Rivarola, Ting Gao, Caren Chang, Chun-Hai Dong
The plant hormone ethylene affects many biological processes during plant growth and development. Ethylene is perceived by ethylene receptors at the endoplasmic reticulum (ER) membrane. The ETR1 ethylene receptor is positively regulated by the transmembrane protein RTE1, which localizes to the ER and Golgi apparatus. The RTE1 gene family is conserved in animals, plants, and lower eukaryotes. In Arabidopsis, RTE1-HOMOLOG (RTH) is the only homolog of the Arabidopsis RTE1 gene family. The regulatory function of the Arabidopsis RTH in ethylene signaling and plant growth is largely unknown...
May 24, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28510484/ethylene-signalling-is-important-for-isoflavonoid-mediated-resistance-to-rhizoctonia-solani-in-roots-of-medicago-truncatula
#18
Yao Liu, Samira Hassan, Brendan N Kidd, Gagan Garg, Ulrike Mathesius, Karam B Singh, Jonathan Anderson
The root-infecting necrotrophic fungal pathogen Rhizoctonia solani causes significant disease to all the world's major food crops. As a model for pathogenesis of legumes, we have examined the interaction of R. solani AG8 with Medicago truncatula. RNAseq analysis of the moderately resistant M. truncatula accession A17 and highly susceptible sickle (skl) mutant (defective in ethylene sensing) identified major early transcriptional reprogramming in A17. Responses specific to A17 included components of ethylene signalling, reactive oxygen species metabolism and consistent up-regulation of the isoflavonoid biosynthesis pathway...
May 16, 2017: Molecular Plant-microbe Interactions: MPMI
https://www.readbyqxmd.com/read/28510189/multiple-regulatory-roles-of-ap2-erf-transcription-factor-in-angiosperm
#19
REVIEW
Chao Gu, Zhi-Hua Guo, Ping-Ping Hao, Guo-Ming Wang, Zi-Ming Jin, Shao-Ling Zhang
APETALA2/ethylene response factor (AP2/ERF) transcription factor (TF) is a superfamily in plant kingdom, which has been reported to be involved in regulation of plant growth and development, fruit ripening, defense response, and metabolism. As the final response gene in ethylene signaling pathway, AP2/ERF TF could feedback modulate phytohormone biosynthesis, including ethylene, cytokinin, gibberellin, and abscisic acid. Moreover, AP2/ERF TF also participates in response to the signals of auxin, cytokinin, abscisic acid, and jasmonate...
December 2017: Botanical Studies (Taipei, Taiwan)
https://www.readbyqxmd.com/read/28465411/ethylene-inhibited-jasmonic-acid-biosynthesis-promotes-mesocotyl-coleoptile-elongation-of-etiolated-rice-seedlings
#20
Qing Xiong, Biao Ma, Xiang Lu, Yi-Hua Huang, Si-Jie He, Chao Yang, Cui-Cui Yin, He Zhao, Yang Zhou, Wan-Ke Zhang, Wen-Sheng Wang, Zhi-Kang Li, Shou-Yi Chen, Jin-Song Zhang
Elongation of the mesocotyl and coleoptile facilitates the emergence of rice (Oryza sativa) seedlings from soil and is affected by various genetic and environment factors. The regulatory mechanism underlying this process remains largely unclear. Here, we examined the regulation of mesocotyl and coleoptile growth by characterizing a gaoyao1 (gy1) mutant that exhibits a longer mesocotyl and longer coleoptile than its original variety of rice. GY1 was identified through map-based cloning and encodes a PLA1-type phospholipase that localizes in chloroplasts...
May 2017: Plant Cell
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