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https://www.readbyqxmd.com/read/28424731/identification-of-tify-family-genes-and-analysis-of-their-expression-profiles-in-response-to-phytohormone-treatments-and-melampsora-larici-populina-infection-in-poplar
#1
Wenxiu Xia, Hongyan Yu, Pei Cao, Jie Luo, Nian Wang
The TIFY domain contains approximately 36 conserved amino acids that form the core motif TIF[F/Y]XG, and they were reported to play important roles in plant growth, tissue development and defense regulation. Moreover, more and more evidence has shown that some members of the TIFY gene family perform their functions by modulating plant hormone signaling pathways. Poplar trees are found worldwide, and they comprise approximately 30 species. Benefit from the importance of poplar and its advanced platform, this tree is considered to be the model perennial plant...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28424721/mirna-and-degradome-sequencing-reveal-mirna-and-their-target-genes-that-may-mediate-shoot-growth-in-spur-type-mutant-yanfu-6
#2
Chunhui Song, Dong Zhang, Liwei Zheng, Jie Zhang, Baojuan Zhang, Wenwen Luo, Youmei Li, Guangfang Li, Juanjuan Ma, Mingyu Han
The spur-type growth habit in apple trees is characterized by short internodes, increased number of fruiting spurs, and compact growth that promotes flowering and facilitates management practices, such as pruning. The molecular mechanisms responsible for regulating spur-type growth have not been elucidated. In the present study, miRNAs and the expression of their potential target genes were evaluated in shoot tips of "Nagafu 2" (CF) and spur-type bud mutation "Yanfu 6" (YF). A total of 700 mature miRNAs were identified, including 202 known apple miRNAs and 498 potential novel miRNA candidates...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28424511/response-of-peanut-arachis-hypogaea-roots-to-the-presence-of-beneficial-and-pathogenic-fungi-by-transcriptome-analysis
#3
Kun Hao, Feng Wang, Xiangqun Nong, Mark Richard McNeill, Shaofang Liu, Guangjun Wang, Guangchun Cao, Zehua Zhang
Entomopathogenic fungus Metarhizium anisopliae obtain survival benefit meanwhile promote the nutrient absorption of root as an endophyte. However, little is known concerning molecular mechanisms in the process. We performed the transcriptome sequencing of A. hypogaea roots inoculated M. anisopliae and pathogenic Fusarium axysporum, respectively. There were 81323 unigenes from 132023 transcripts. Total 203 differentially expressed genes (DEGs) respond to the two fungi, including specific 76 and 34 DEGs distributed respectively in M...
April 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28423470/quantification-of-near-attomole-gibberellins-in-floral-organs-dissected-from-single-arabidopsis-thaliana-flower
#4
Dongmei Li, Zhenpeng Guo, Cuimei Liu, Jincheng Li, Wenzhong Xu, Yi Chen
There remains a methodological bottleneck in the quantification of ultra-trace plant hormones in very tiny plant organs at a fresh weights below milligram. The challenge becomes even more serious in the determination of endogenous gibberellins (GAs), which are a class of compounds that are difficult to separate and detect. Herein, a quantitation method by ultra-high-performance liquid chromatography-tandem mass spectrometry was developed, combined with a derivatization technique in which GAs react with N-(3-dimethylaminopropyl)-N'-ethylcarbodiimide in ethanol...
April 19, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28420793/regulating-plant-physiology-with-organic-electronics
#5
David J Poxson, Michal Karady, Roger Gabrielsson, Aziz Y Alkattan, Anna Gustavsson, Siamsa M Doyle, Stéphanie Robert, Karin Ljung, Markus Grebe, Daniel T Simon, Magnus Berggren
The organic electronic ion pump (OEIP) provides flow-free and accurate delivery of small signaling compounds at high spatiotemporal resolution. To date, the application of OEIPs has been limited to delivery of nonaromatic molecules to mammalian systems, particularly for neuroscience applications. However, many long-standing questions in plant biology remain unanswered due to a lack of technology that precisely delivers plant hormones, based on cyclic alkanes or aromatic structures, to regulate plant physiology...
April 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28419906/plant-hormone-signaling-in-flowering-an-epigenetic-point-of-view
#6
REVIEW
Gerardo Campos-Rivero, Pedro Osorio-Montalvo, Rafael Sánchez-Borges, Rosa Us-Camas, Fátima Duarte-Aké, Clelia De-la-Peña
Reproduction is one of the most important phases in an organism's lifecycle. In the case of angiosperm plants, flowering provides the major developmental transition from the vegetative to the reproductive stage, and requires genetic and epigenetic reprogramming to ensure the success of seed production. Flowering is regulated by a complex network of genes that integrate multiple environmental cues and endogenous signals so that flowering occurs at the right time; hormone regulation, signaling and homeostasis are very important in this process...
March 31, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28419137/transcriptional-changes-in-litchi-litchi-chinensis-sonn-inflorescences-treated-with-uniconazole
#7
Yongzan Wei, Chen Dong, Hongna Zhang, Xuewen Zheng, Bo Shu, Shengyou Shi, Weicai Li
In Arabidopsis, treating shoots with uniconazole can result in enhanced primary root elongation and bolting delay. Uniconazole spraying has become an important cultivation technique in controlling the flowering and improving the fruit-setting of litchi. However, the mechanism by which uniconazole regulates the complicated developmental processes in litchi remains unclear. This study aimed to determine which signal pathways and genes drive the responses of litchi inflorescences to uniconazole treatment. We monitored the transcriptional activity in inflorescences after uniconazole treatment by Illumina sequencing technology...
2017: PloS One
https://www.readbyqxmd.com/read/28412545/dna-topoisomerase-1-prevents-r-loop-accumulation-to-modulate-auxin-regulated-root-development-in-rice
#8
Sarfraz Shafiq, Chunli Chen, Jing Yang, Lingling Cheng, Fei Ma, Emilie Widemann, Qianwen Sun
R-loop structures (RNA:DNA hybrids) have important functions in many biological processes, including transcriptional regulation and genome instability among diverse organisms. DNA Topoisomerase 1 (TOP1), an essential manipulator of DNA topology during RNA transcription and DNA replication processes, can prevent R-loop accumulation by removing the positive and negative DNA supercoiling that is made by RNA polymerases during transcription. TOP1 is required for plant development, but little is known about its function in preventing co-transcriptional R-loops in different plant biological processes...
April 12, 2017: Molecular Plant
https://www.readbyqxmd.com/read/28412530/indoles-as-therapeutics-of-interest-in-medicinal-chemistry-bird-s-eye-view
#9
REVIEW
Navriti Chadha, Om Silakari
Indoles constitute extensively explored heterocyclic ring systems with wide range of applications in pathophysiological conditions that is, cancer, microbial and viral infections, inflammation, depression, migraine, emesis, hypertension, etc. Presence of indole nucleus in amino acid tryptophan makes it prominent in phytoconstituents such as perfumes, neurotransmitters, auxins (plant hormones), indole alkaloids etc. The interesting molecular architecture of indole makes them suitable candidates for the drug development...
April 5, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28407801/single-base-resolution-methylomes-of-upland-cotton-gossypium-hirsutum-l-reveal-epigenome-modifications-in-response-to-drought-stress
#10
Xuke Lu, Xiaoge Wang, Xiugui Chen, Na Shu, Junjuan Wang, Delong Wang, Shuai Wang, Weili Fan, Lixue Guo, Xiaoning Guo, Wuwei Ye
BACKGROUND: DNA methylation, with a cryptic role in genome stability, gene transcription and expression, is involved in the drought response process in plants, but the complex regulatory mechanism is still largely unknown. RESULTS: Here, we performed whole-genome bisulfite sequencing (WGBS) and identified long non-coding RNAs on cotton leaves under drought stress and re-watering treatments. We obtained 31,223 and 30,997 differentially methylated regions (representing 2...
April 13, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28406933/transcriptomic-profiling-of-taproot-growth-and-sucrose-accumulation-in-sugar-beet-beta-vulgaris-l-at-different-developmental-stages
#11
Yong-Feng Zhang, Guo-Long Li, Xue-Feng Wang, Ya-Qing Sun, Shao-Ying Zhang
In sugar beet (Beta vulgaris L.), taproot weight and sucrose content are the important determinants of yield and quality. However, high yield and low sucrose content are two tightly bound agronomic traits. The advances in next-generation sequencing technology and the publication of sugar beet genome have provided a method for the study of molecular mechanism underlying the regulation of these two agronomic traits. In this work, we performed comparative transcriptomic analyses in the high taproot yield cultivar SD13829 and the high sucrose content cultivar BS02 at five developmental stages...
2017: PloS One
https://www.readbyqxmd.com/read/28404726/regulation-of-strigolactone-biosynthesis-by-gibberellin-signaling
#12
Shinsaku Ito, Daichi Yamagami, Mikihisa Umehara, Atsushi Hanada, Satoko Yoshida, Yasuyuki Sasaki, Shunsuke Yajima, Junko Kyozuka, Miyako Ueguchi-Tanaka, Makoto Matsuoka, Ken Shirasu, Shinjiro Yamaguchi, Tadao Asami
Strigolactones (SLs) are a class of plant hormones that regulate diverse physiological processes, including shoot branching and root development. They also act as rhizosphere signaling molecules to stimulate the germination of root parasitic weeds and the branching of arbuscular mycorrhizal fungi. Although various types of cross-talk between SLs and other hormones have been reported in physiological analyses, the cross-talk between gibberellin (GA) and SLs is poorly understood. We screened for chemicals that regulate the level of SLs in rice and identified GA as a novel SL-regulating molecule...
April 12, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28402719/ospra2-fine-tunes-rice-brassinosteroid-receptor
#13
Xiaoguang Song, Hongyan Guo, Ge Zhang, Yao Wu, Guiling Wang, Xiaoying Chen, Rongxiang Fang
Brassinosteroids (BRs) are a kind of plant hormones that regulate many important agronomic traits. Although the framework of the BR signaling pathway has been outlined, detailed working mechanisms at several steps of this pathway, especially at the BR receptor level, need to be further elucidated. Recently we have reported that a rice small G protein, OsPRA2, bound to the BR receptor OsBRI1 at the plasma membrane (PM) and inhibited its kinase activity and its interaction with the co-receptor OsBAK1, leading to a lower sensitivity to BR treatment and dephosphorylation of OsBZR1...
March 4, 2017: Plant Signaling & Behavior
https://www.readbyqxmd.com/read/28400173/strigolactones-in-plant-interactions-with-beneficial-and-detrimental-organisms-the-yin-and-yang
#14
REVIEW
Juan A López-Ráez, Ken Shirasu, Eloise Foo
Strigolactones (SLs) are plant hormones that have important roles as modulators of plant development. They were originally described as ex planta signaling molecules in the rhizosphere that induce the germination of parasitic plants, a role that was later linked to encouraging the beneficial symbiosis with arbuscular mycorrhizal (AM) fungi. Recently, the focus has shifted to examining the role of SLs in plant-microbe interactions, and has revealed roles for SLs in the association of legumes with nitrogen-fixing rhizobacteria and in interactions with disease-causing pathogens...
April 8, 2017: Trends in Plant Science
https://www.readbyqxmd.com/read/28399399/sinat-e3-ligases-control-the-light-mediated-stability-of-the-brassinosteroid-activated-transcription-factor-bes1-in-arabidopsis
#15
Mengran Yang, Chengxiang Li, Zhenying Cai, Yinmeng Hu, Trevor Nolan, Feifei Yu, Yanhai Yin, Qi Xie, Guiliang Tang, Xuelu Wang
The plant hormones brassinosteroids (BRs) participate in light-mediated regulation of plant growth, although the underlying mechanisms are far from being fully understood. In addition, the function of the core transcription factor in the BR signaling pathway, BRI1-EMS-SUPPRESSOR 1 (BES1), largely depends on its phosphorylation status and its protein stability, but the regulation of BES1 is not well understood. Here, we report that SINA of Arabidopsis thaliana (SINATs) specifically interact with dephosphorylated BES1 and mediate its ubiquitination and degradation...
April 10, 2017: Developmental Cell
https://www.readbyqxmd.com/read/28399194/interactions-between-plant-hormones-and-heavy-metals-responses
#16
Lauro Bücker-Neto, Ana Luiza Sobral Paiva, Ronei Dorneles Machado, Rafael Augusto Arenhart, Marcia Margis-Pinheiro
Heavy metals are natural non-biodegradable constituents of the Earth's crust that accumulate and persist indefinitely in the ecosystem as a result of human activities. Since the industrial revolution, the concentration of cadmium, arsenic, lead, mercury and zinc, amongst others, have increasingly contaminated soil and water resources, leading to significant yield losses in plants. These issues have become an important concern of scientific interest. Understanding the molecular and physiological responses of plants to heavy metal stress is critical in order to maximize their productivity...
April 10, 2017: Genetics and Molecular Biology
https://www.readbyqxmd.com/read/28392795/the-role-of-endogenous-strigolactones-and-their-interaction-with-aba-during-the-infection-process-of-the-parasitic-weed-phelipanche-ramosa-in-tomato-plants
#17
Xi Cheng, Kristýna Floková, Harro Bouwmeester, Carolien Ruyter-Spira
The root parasitic plant species Phelipanche ramosa, branched broomrape, causes severe damage to economically important crops such as tomato. Its seed germination is triggered by host-derived signals upon which it invades the host root. In tomato, strigolactones (SLs) are the main germination stimulants for P. ramosa. Therefore, the development of low SL-producing lines may be an approach to combat the parasitic weed problem. However, since SLs are also a plant hormone controlling many aspects of plant development, SL deficiency may also have an effect on post-germination stages of the infection process, during the parasite-host interaction...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28392792/a-phylogenetically-informed-comparison-of-gh1-hydrolases-between-arabidopsis-and-rice-response-to-stressors
#18
Yun-Ying Cao, Jing-Fang Yang, Tie-Yuan Liu, Zhen-Feng Su, Fu-Yuan Zhu, Mo-Xian Chen, Tao Fan, Neng-Hui Ye, Zhen Feng, Ling-Juan Wang, Ge-Fei Hao, Jianhua Zhang, Ying-Gao Liu
Glycoside hydrolases Family 1 (GH1) comprises enzymes that can hydrolyze β-O-glycosidic bond from a carbohydrate moiety. The plant GH1 hydrolases participate in a number of developmental processes and stress responses, including cell wall modification, plant hormone activation or deactivation and herbivore resistance. A large number of members has been observed in this family, suggesting their potential redundant functions in various biological processes. In this study, we have used 304 sequences of plant GH1 hydrolases to study the evolution of this gene family in plant lineage...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28382950/diplosporous-development-in-boehmeria-tricuspis-insights-from-de-novo-transcriptome-assembly-and-comprehensive-expression-profiling
#19
Qing Tang, Gonggu Zang, Chaohua Cheng, Mingbao Luan, Zhigang Dai, Ying Xu, Zemao Yang, Lining Zhao, Jianguang Su
Boehmeria tricuspis includes sexually reproducing diploid and apomictic triploid individuals. Previously, we established that triploid B. tricuspis reproduces through obligate diplospory. To understand the molecular basis of apomictic development in B. tricuspis, we sequenced and compared transcriptomic profiles of the flowers of sexual and apomictic plants at four key developmental stages. A total of 283,341 unique transcripts were obtained from 1,463 million high-quality paired-end reads. In total, 18,899 unigenes were differentially expressed between the reproductive types at the four stages...
April 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28382644/vector-and-nonvector-insect-feeding-reduces-subsequent-plant-susceptibility-to-virus-transmission
#20
Ping Li, Yan-Ni Shu, Shuai Fu, Yin-Quan Liu, Xue-Ping Zhou, Shu-Sheng Liu, Xiao-Wei Wang
The interactions of vector-virus-plant have important ecological and evolutionary implications. While the tripartite interactions have received some attention, little is known about whether vector infestation affects subsequent viral transmission and infection. Working with the whitefly Bemisia tabaci, begomovirus and tobacco/tomato, we demonstrate that pre-infestation of plants by the whitefly vector reduced subsequent plant susceptibility to viral transmission. Pre-infestation by the cotton bollworm, a nonvector of the virus, likewise repressed subsequent viral transmission...
April 6, 2017: New Phytologist
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