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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
#1
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
#2
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
#3
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
#4
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...
June 9, 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
#5
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
#6
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...
May 26, 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
#7
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
#8
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
#9
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
#10
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
#11
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
https://www.readbyqxmd.com/read/28443119/parsing-the-regulatory-network-between-small-rnas-and-target-genes-in-ethylene-pathway-in-tomato
#12
Yunxiang Wang, Qing Wang, Lipu Gao, Benzhong Zhu, Zheng Ju, Yunbo Luo, Jinhua Zuo
Small RNAs are a class of short non-coding endogenous RNAs that play essential roles in many biological processes. Recent studies have reported that microRNAs (miRNAs) are also involved in ethylene signaling in plants. LeERF1 is one of the ethylene response factors (ERFs) in tomato that locates in the downstream of ethylene signal transduction pathway. To elucidate the intricate regulatory roles of small RNAs in ethylene signaling pathway in tomato, the deep sequencing and bioinformatics methods were combined to decipher the small RNAs landscape in wild and sense-/antisense-LeERF1 transgenic tomato fruits...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28402161/ein2-mediated-signaling-is-involved-in-pre-invasion-defense-in-nicotiana-benthamiana-against-potato-late-blight-pathogen-phytophthora-infestans
#13
Soriya Rin, Yuri Mizuno, Yusuke Shibata, Mayuka Fushimi, Shinpei Katou, Ikuo Sato, Sotaro Chiba, Kazuhito Kawakita, Daigo Takemoto
Nicotiana benthamiana ABCG1 and ABCG2 are ABC transporters which are probably involved in the export of capsidiol, the major phytoalexin of Nicotiana species. While capsidiol export by these transporters plays an essential role in post-invasion defense against Phytophthora infestans, they also export unidentified antimicrobial compound(s) involved in pre-invasion defense. In this study, promoter activity of NbABCG2 (Pabcg2a) was analyzed using a GFP marker. Expression of GFP under the control of Pabcg2a was significantly increased by co-expression with the INF1 elicitor from P...
April 3, 2017: Plant Signaling & Behavior
https://www.readbyqxmd.com/read/28400495/constitutively-active-arabidopsis-map-kinase-3-triggers-defense-responses-involving-salicylic-acid-and-summ2-resistance-protein
#14
Baptiste Genot, Julien Lang, Souha Berriri, Marie Garmier, Françoise Gilard, Stéphanie Pateyron, Katrien Haustraete, Dominique Van Der Streaten, Heribert Hirt, Jean Colcombet
Mitogen-activated protein kinases (MAPKs) are important regulators of plant immunity. Most of the knowledge about the function of these pathways is derived from loss-of-function approaches. Using a gain-of-function approach, we investigated the responses controlled by a constitutively active (CA) MPK3 in Arabidopsis thalianaCA-MPK3 plants are dwarfed and display a massive derepression of defense genes associated with spontaneous cell death as well as the accumulation of reactive oxygen species, phytoalexins, and the stress-related hormones ethylene and salicylic acid (SA)...
June 2017: Plant Physiology
https://www.readbyqxmd.com/read/28388654/triplin-a-small-molecule-reveals-copper-ion-transport-in-ethylene-signaling-from-atx1-to-ran1
#15
Wenbo Li, Randy F Lacey, Yajin Ye, Juan Lu, Kuo-Chen Yeh, Youli Xiao, Laigeng Li, Chi-Kuang Wen, Brad M Binder, Yang Zhao
Copper ions play an important role in ethylene receptor biogenesis and proper function. The copper transporter RESPONSIVE-TO-ANTAGONIST1 (RAN1) is essential for copper ion transport in Arabidopsis thaliana. However it is still unclear how copper ions are delivered to RAN1 and how copper ions affect ethylene receptors. There is not a specific copper chelator which could be used to explore these questions. Here, by chemical genetics, we identified a novel small molecule, triplin, which could cause a triple response phenotype on dark-grown Arabidopsis seedlings through ethylene signaling pathway...
April 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28344560/nitric-oxide-has-a-concentration-dependent-effect-on-the-cell-cycle-acting-via-ein2-in-arabidopsis-thaliana-cultured-cells
#16
Galina V Novikova, Luis A J Mur, Alexander V Nosov, Artem A Fomenkov, Kirill S Mironov, Anna S Mamaeva, Evgeny S Shilov, Victor Y Rakitin, Michael A Hall
Ethylene is known to influence the cell cycle (CC) via poorly characterized roles whilst nitric oxide (NO) has well-established roles in the animal CC but analogous role(s) have not been reported for plants. As NO and ethylene signaling events often interact we examined their role in CC in cultured cells derived from Arabidopsis thaliana wild-type (Col-0) plants and from ethylene-insensitive mutant ein2-1 plants. Both NO and ethylene were produced mainly during the first 5 days of the sub-cultivation period corresponding to the period of active cell division...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28329733/comparison-of-transcriptional-expression-patterns-of-carotenoid-metabolism-in-cabernet-sauvignon-grapes-from-two-regions-with-distinct-climate
#17
Wei-Kai Chen, Ke-Ji Yu, Bin Liu, Yi-Bin Lan, Run-Ze Sun, Qiang Li, Fei He, Qiu-Hong Pan, Chang-Qing Duan, Jun Wang
The downstream flux of carotenoid metabolism in grape berries includes the biosynthesis of norisoprenoids, a group of important aroma compounds, and the production of ABA, a well-known plant hormone. This study focused on the transcriptional profiling comparison of genes participating in the biosynthesis of carotenoids, norisoprenoids, and ABA in Vitis vinifera 'Cabernet Sauvignon' grapes at pea size, veraison, and ripening stages. The grapes were obtained from Changli (CL, eastern China) and Gaotai (GT, western China) regions and analyzed using RNA-sequencing technology...
March 9, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28301712/hypoxia-responsive-erfs-involved-in-post-deastringency-softening-of-persimmon-fruit
#18
Miao-Miao Wang, Qing-Gang Zhu, Chu-Li Deng, Zheng-Rong Luo, Ning-Jing Sun, Donald Grierson, Xue-Ren Yin, Kun-Song Chen
Removal of astringency by endogenously formed acetaldehyde, achieved by postharvest anaerobic treatment, is of critical importance for many types of persimmon fruit. Although an anaerobic environment accelerates de-astringency it also has the deleterious effect of promoting excessive softening, reducing shelf-life and marketability. Some hypoxia-responsive ethylene response factor (ERFs) participate in anaerobic de-astringency, but their role in accelerated softening was unclear. Undesirable rapid softening induced by high CO2 (95%) was ameliorated by adding the ethylene inhibitor 1-MCP (1 μl L(-1) ), resulting in reduced astringency while maintaining firmness, suggesting that CO2 -induced softening involves ethylene signalling...
March 16, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28300216/ein3-and-sos2-synergistically-modulate-plant-salt-tolerance
#19
Ruidang Quan, Juan Wang, Dexin Yang, Haiwen Zhang, Zhijin Zhang, Rongfeng Huang
Ethylene biosynthesis and the ethylene signaling pathway regulate plant salt tolerance by activating the expression of downstream target genes such as those related to ROS and Na(+)/K(+) homeostasis. The Salt Overly Sensitive (SOS) pathway regulates Na(+)/K(+) homeostasis in Arabidopsis under salt stress. However, the connection between these two pathways is unclear. Through genetic screening, we identified two sos2 alleles as salt sensitive mutants in the ein3-1 background. Neither Ethylene-Insensitive 2 (EIN2) nor EIN3 changed the expression patterns of SOS genes including SOS1, SOS2, SOS3 and SOS3-like Calcium Binding Protein 8 (SCaBP8), but SOS2 activated the expression of one target gene of EIN3, Ethylene and Salt-inducible ERF 1 (ESE1)...
March 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28293853/assessing-attraction-of-nematodes-to-host-roots-using-pluronic-gel-medium
#20
Valerie M Williamson, Rasa Čepulytė
Nematodes and other organisms perceive and respond to plant root exudates. These exudates are affected by the condition and genetic makeup of the plant. Attraction of the root-knot nematode Meloidogyne hapla to roots is altered in plants with mutations affecting ethylene signaling, suggesting that the root exudates to which the nematode responds are modulated by ethylene signaling. Nematode interactions with roots have been difficult to observe directly due to the opaqueness of soil. A medium based on the block copolymer Pluronic F-127 has been useful for studying these interactions...
2017: Methods in Molecular Biology
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