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https://www.readbyqxmd.com/read/29232718/an-arabidopsis-nucleoporin-nup85-modulates-plant-responses-to-aba-and-salt-stress
#1
Yingfang Zhu, Bangshing Wang, Kai Tang, Chuan-Chih Hsu, Shaojun Xie, Hai Du, Yuting Yang, Weiguo Andy Tao, Jian-Kang Zhu
Several nucleoporins in the nuclear pore complex (NPC) have been reported to be involved in abiotic stress responses in plants. However, the molecular mechanism of how NPC regulates abiotic stress responses, especially the expression of stress responsive genes remains poorly understood. From a forward genetics screen using an abiotic stress-responsive luciferase reporter (RD29A-LUC) in the sickle-1 (sic-1) mutant background, we identified a suppressor caused by a mutation in NUCLEOPORIN 85 (NUP85), which exhibited reduced expression of RD29A-LUC in response to ABA and salt stress...
December 12, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/29230363/genome-wide-identification-of-aba-receptor-pyl-family-and-expression-analysis-of-pyls-in-response-to-aba-and-osmotic-stress-in-gossypium
#2
Gaofeng Zhang, Tingting Lu, Wenwen Miao, Lirong Sun, Mi Tian, Ji Wang, Fushun Hao
Abscisic acid (ABA) receptor pyrabactin resistance1/PYR1-like/regulatory components of ABA receptor (PYR1/PYL/RCAR) (named PYLs for simplicity) are core regulators of ABA signaling, and have been well studied in Arabidopsis and rice. However, knowledge is limited about the PYL family regarding genome organization, gene structure, phylogenesis, gene expression and protein interaction with downstream targets in Gossypium. A comprehensive analysis of the Gossypium PYL family was carried out, and 21, 20, 40 and 39 PYL genes were identified in the genomes from the diploid progenitor G...
2017: PeerJ
https://www.readbyqxmd.com/read/29228360/dissecting-the-rootstock-control-of-scion-transpiration-using-model-assisted-analyses-in-grapevine
#3
Anthony Peccoux, Brian Loveys, Junqi Zhu, Gregory A Gambetta, Serge Delrot, Philippe Vivin, Hans R Schultz, Nathalie Ollat, Zhanwu Dai
How rootstocks contribute to the control of scion transpiration under drought is poorly understood. We investigated the role of root characteristics, hydraulic conductance and chemical signals (abscisic acid, ABA) in the response of stomatal conductance (gs) and transpiration (E) to drought in Cabernet Sauvignon (Vitis vinifera) grafted onto drought-sensitive (Vitis riparia) and drought-tolerant (Vitis berlandieri × Vitis rupestris 110R) rootstocks. All combinations showed a concomitant reduction in gs and E, and an increase in xylem sap ABA concentration during the drought cycle...
December 8, 2017: Tree Physiology
https://www.readbyqxmd.com/read/29227949/a-cbl-interacting-protein-kinase-tacipk27-confers-drought-tolerance-and-exogenous-aba-sensitivity-in-transgenic-arabidopsis
#4
Yan Wang, Tingting Li, Shanita Judith John, Mingjie Chen, Junli Chang, Guangxiao Yang, Guangyuan He
Drought is one of the major environmental stresses to plants. The calcium sensor, calcineurin B-like (CBL) proteins, and their interacting protein kinases (CIPK) play important roles in responding to abiotic stresses. In this study, we functionally characterized a CIPK gene from Triticum aestivum designated TaCIPK27. The transcriptional levels of TaCIPK27 were increased both in roots and leaves after treatment with polyethylene glycol 8000, abscisic acid and H2O2. Besides, TaCIPK27 interacted with AtCBL1, AtCBL3, AtCBL4, AtCBL5 and AtCBL9 in yeast two-hybrid assays...
December 1, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/29225607/alternative-splicing-of-cipk3-results-in-distinct-target-selection-to-propagate-aba-signaling-in-arabidopsis
#5
Sibaji K Sanyal, Poonam Kanwar, Harsha Samtani, Kanwaljeet Kaur, Saroj K Jha, Girdhar K Pandey
Calcium (Ca2+) signaling is pivotal in transmission of information in the cell. Various Ca2+ sensing molecules work to sense and relay the encrypted messages to the intended targets in the cell to maintain this signal transduction. CBL-interacting protein kinases (CIPKs) are crucial components of Ca2+ signal transduction during various abiotic stresses. Although there are intron rich CIPKs in the plant genome but very little has been reported about their alternative splicing. Moreover the physiological significance of this event in the Ca2+ signaling is still elusive...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29223878/constitutive-gibberellin-response-in-grafted-tomato-modulates-root-to-shoot-signaling-under-drought-stress
#6
Lucas Aparecido Gaion, Carolina Cristina Monteiro, Flávio José Rodrigues Cruz, Davi Rodrigo Rossatto, Isabel López-Díaz, Esther Carrera, Joni Esrom Lima, Lázaro Eustáquio Pereira Peres, Rogério Falleiros Carvalho
Plants are sessile organisms that must perceive and respond to various environmental constraints throughout their life cycle. Among these constraints, drought stress has become the main limiting factor to crop production around the world. Water deprivation is perceived primarily by the roots, which efficiently signal the shoot to trigger drought responses in order to maximize a plant's ability to survive. In this study, the tomato (Solanum lycopersicum L.) mutant procera (pro), with a constitutive response to gibberellin (GA), and its near isogenic line cv...
December 6, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/29223333/constitutive-expression-of-brassica-juncea-annexin-annbj2-confers-salt-tolerance-and-glucose-and-aba-insensitivity-in-mustard-transgenic-plants
#7
Israr Ahmed, Deepanker Yadav, Pawan Shukla, T V Vineeth, P C Sharma, P B Kirti
Annexins belong to a plasma membrane binding (in a calcium dependent manner), multi-gene family of proteins, which play ameliorating roles in biotic and abiotic stresses. The expression of annexin AnnBj2 of Indian mustard is tissue specific with higher expression in roots and under treatments with sodium chloride and abscisic acid (ABA) at seedling stage. The effect of constitutive expression of AnnBj2 in mustard was analyzed in detail. AnnBj2 OE (over expression) plants exhibited insensitivity to ABA, glucose and sodium chloride...
December 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/29223330/expression-of-a-populus-histone-deacetylase-gene-84khda903-in-tobacco-enhances-drought-tolerance
#8
Xujun Ma, Bing Zhang, Chunjuan Liu, Botong Tong, Tao Guan, Dean Xia
Histone deacetylases (HDACs) play a key role in regulating plant growth, development and stress responses. However, functions of HDACs in woody plants are largely unknown. In this study, a novel gene encoding a RPD3/HDA1-type histone deacetylase was cloned from 84K poplar (Populus alba×Populus glandulosa) and designated as 84KHDA903. The 84KHDA903 encodes a protein composed of 500 amino acid residues, which contains a conserved HDAC domain. Transient expression of 84KHDA903 in onion epidermal cells suggested that it was exclusively localized in nucleus...
December 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/29223066/overexpression-of-the-maize-e3-ubiquitin-ligase-gene-zmairp4-enhances-drought-stress-tolerance-in-arabidopsis
#9
Liang Yang, Lintao Wu, Wei Chang, Zhi Li, Mingjun Miao, Yuejian Li, Junpin Yang, Zhibin Liu, Jun Tan
Ubiquitin-mediated protein degradation plays a crucial role in enabling plants to effectively and efficiently cope with environmental stresses. The E3 ligases have emerged as a central component of the ubiquitination pathway and modulate plant response to abiotic stresses. However, few such studies have been reported in maize. In this study, a C3HC4-type RING finger E3 ligase in maize, ZmAIRP4 (Zea mays Abscisic acid [ABA]-Insensitive RING Protein 4), which is an ortholog of AtAIRP4, was isolated by reverse transcription polymerase chain reaction with specific primers, and its functions in tolerance to drought stress were described...
December 5, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/29222880/consumption-and-sources-of-added-sugar-in-indonesia-a-review
#10
Atmarita, Nelis Imanningsih, Abas B Jahari, Ir Dewi Permaesih, Pauline Chan, Maria Sofia Amarra
BACKGROUND AND OBJECTIVES: The present report summarized the best available evidence regarding consumption level and sources of free or added sugars in Indonesia. METHODS AND STUDY DESIGN: Information was extracted from food balance sheets, household expenditure surveys, nutrition surveys, published studies, unpublished theses/ dissertations, and government reports. RESULTS: A total of 18 references were obtained, showing varying results. Indonesia's national surveys suggested intakes of sugar below 50 grams per day or below 10% of energy intake...
2018: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29222611/kiwifruit-svp2-controls-developmental-and-drought-stress-pathways
#11
Rongmei Wu, Tianchi Wang, Ben A W Warren, Susan J Thomson, Andrew C Allan, Richard C Macknight, Erika Varkonyi-Gasic
Genome-wide targets of Actinidia chinensis SVP2 confirm roles in ABA- and dehydration-mediated growth repression and reveal a conservation in mechanism of action between SVP genes of taxonomically distant Arabidopsis and a woody perennial kiwifruit. The molecular mechanisms underlying growth and dormancy in woody perennials are largely unknown. In Arabidopsis, the MADS-box transcription factor SHORT VEGETATIVE PHASE (SVP) plays a key role in the progression from vegetative to floral development, and in woody perennials SVP-like genes are also proposed to be involved in controlling dormancy...
December 8, 2017: Plant Molecular Biology
https://www.readbyqxmd.com/read/29215944/feronia-fer-like-receptor-kinases-integrate-and-modulate-multiple-signaling-pathways-in-fruit-development-and-ripening
#12
Bingbing Li, Jiaqi Yan, Wensuo Jia
Ripening of fleshy fruits is a complex process that involves dramatic changes in color, texture, flavor, and aroma, which is essentially regulated by multiple hormone signals. Although the metabolic mechanisms for the regulation of fruit development and ripening have been studied extensively, little is known about the signaling mechanisms underlying this process. FERONIA has been increasingly suggested to be implicated in multiple signaling pathways. In a recent publication, we showed that a FERONIA/FER -like receptor kinase, FaMRLK47, playes an important role in the regulation of fruit ripening in strawberry (Fragaria × ananassa, a typical non-climacteric fruit) fruit...
December 7, 2017: Plant Signaling & Behavior
https://www.readbyqxmd.com/read/29214486/metabolism-mediated-induction-of-zinc-tolerance-in-brassica-rapa-by-burkholderia-cepacia-cs2-1
#13
Sang-Mo Kang, Raheem Shahzad, Saqib Bilal, Abdul Latif Khan, Young-Hyun You, Won-Hee Lee, Hee-La Ryu, Ko-Eun Lee, In-Jung Lee
Brassica rapa (Chinese cabbage) is an essential component of traditional Korean food. However, the crop is often subject to zinc (Zn+) toxicity from contaminated irrigation water, which, as a result, compromises plant growth and production, as well as the health of human consumers. The present study investigated the bioaccumulation of Zn+ by Burkholderia cepacia CS2-1 and its effect on the heavy metal tolerance of Chinese cabbage. Strain CS2-1 was identified and characterized on the basis of 16S rRNA sequences and phylogenetic analysis...
December 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/29214380/differential-expression-of-gibberellin-and-abscisic-acid-related-genes-implies-their-roles-in-the-bud-activity-dormancy-transition-of-tea-plants
#14
Chuan Yue, Hongli Cao, Xinyuan Hao, Jianming Zeng, Wenjun Qian, Yuqiong Guo, Naixing Ye, Yajun Yang, Xinchao Wang
Thirty genes involved in GA and ABA metabolism and signalling were identified, and the expression profiles indicated that they play crucial roles in the bud activity-dormancy transition in tea plants. Gibberellin (GA) and abscisic acid (ABA) are fundamental phytohormones that extensively regulate plant growth and development, especially bud dormancy and sprouting transition in perennial plants. However, there is little information on GA- and ABA-related genes and their expression profiles during the activity-dormancy transition in tea plants...
December 6, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/29214134/a-response-to-papatola-and-lustig-s-paper-on-navigating-a-managed-care-peer-review-guidance-for-clinicians-using-applied-behavior-analysis-in-the-treatment-of-children-on-the-autism-spectrum
#15
Julie Kornack, Brandon Herscovitch, Ashley L Williams
In their 2016 article, "Navigating a Managed Care Peer Review: Guidance for Clinicians Using Applied Behavior Analysis [ABA] in the Treatment of Children on the Autism Spectrum," Papatola and Lustig provide an overview of the managed care process, discuss the medical necessity of ABA, and offer guidance to clinicians on how to navigate the managed care peer review process. Given that the authors are employed by a large international health insurance carrier and conduct peer reviews on behalf of that organization, this response seeks to provide guidance from both the clinical and public policy perspectives that reflect best practices in the field of autism treatment...
December 2017: Behavior Analysis in Practice
https://www.readbyqxmd.com/read/29211628/comparative-expression-analysis-of-starch-degrading-genes-between-dormant-and-non-dormant-wheat-seeds
#16
Menghan Sun, Yuji Yamasaki, Belay T Ayele
To gain insights into the molecular basis of starch degradation in wheat seeds with respect to dormancy maintenance and release, this study compared the expression of starch degrading genes between dormant and after-ripened seeds in both dry and imbibed states. Furthermore, the study examined the effect of ABA on the expression of starch degrading genes during imbibition of non-dormant seeds. Release of dormancy due to after-ripening led to the upregulation of specific genes encoding α-amylase and α-glucosidase during imbibition while dormancy maintenance is associated with repression of these genes...
December 6, 2017: Plant Signaling & Behavior
https://www.readbyqxmd.com/read/29209339/overexpression-of-socyp85a1-a-spinach-cytochrome-p450-gene-in-transgenic-tobacco-enhances-root-development-and-drought-stress-tolerance
#17
Fangmeng Duan, Jun Ding, Dongsun Lee, Xueli Lu, Yuqi Feng, Wenwen Song
Brassinosteroids (BRs) play an essential role in plant growth, development, and responses to diverse abiotic stresses. However, previous studies mainly analyzed how exogenous BRs influenced plant physiological reactions to drought stress, therefore, genetic evidences for the endogenous BRs-mediated regulation of plant responses still remain elusive. In this study, a key BRs biosynthetic gene, SoCYP85A1 was cloned from Spinacia oleracea, which has a complete open reading frame of 1,392 bp encoding a 464 amino acid peptide and shares high sequence similarities with CYP85A1 from other plants...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29205921/the-dioxygenase-gim2-functions-in-seed-germination-by-altering-gibberellin-production-in-arabidopsis
#18
Wei Xiong, Tiantian Ye, Xuan Yao, Xiong Liu, Sheng Ma, Xi Chen, Ming-Luan Chen, Yu-Qi Feng, Yan Wu
The phytohormones gibberellic acid (GA) and abscisic acid (ABA) antagonistically control seed germination. High levels of GA favor seed germination, whereas high levels of ABA hinder this process. The direct relationship between GA biosynthesis and seed germination ability need further investigation. Here, we identified the ABA-insensitive gain-of-function mutant germination insensitive to ABA mutant 2 (gim2) by screening a population of XVE T-DNA-tagged mutant lines. Based on two loss-of-function gim2-ko mutant lines, the disruption of GIM2 function caused a delay in seed germination...
December 4, 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/29205216/investigation-of-blood-flow-rheology-using-second-grade-viscoelastic-model-phan-thien-tanner-within-carotid-artery
#19
Abas Ramiar, Morsal Momenti Larimi, Ali Akbar Ranjbar
PURPOSE: Hemodynamic factors, such as Wall Shear Stress (WSS), play a substantial role in arterial diseases. In the larger arteries, such as the carotid artery, interaction between the vessel wall and blood flow affects the distribution of hemodynamic factors. The fluid is considered to be non-Newtonian, whose flow is governed by the equation of a second-grade viscoelastic fluid and the effects of viscoelastic on blood flow in carotid artery is investigated. METHODS: Pulsatile flow studies were carried out in a 3D model of carotid artery...
2017: Acta of Bioengineering and Biomechanics
https://www.readbyqxmd.com/read/29204077/a-functional-genomic-perspective-on-drought-signalling-and-its-crosstalk-with-phytohormone-mediated-signalling-pathways-in-plants
#20
REVIEW
Shalini Tiwari, Charu Lata, Puneet Singh Chauhan, Vivek Prasad, Manoj Prasad
Introduction: Drought stress is one of the most important abiotic stresses that negatively influence crop performance and productivity. Plants acclimatize to drought stress conditions through altered molecular, biochemical and physiological responses. Gene and/or protein expression and regulation are thought to be modulated upon stress perception and signal transduction for providing requisite endurance to plants.Plant growth regulators or phytohormones are important molecules required for various biological processes in plants and are also central to stress signalling pathways...
December 2017: Current Genomics
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