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https://www.readbyqxmd.com/read/28344583/rbm25-mediates-abiotic-responses-in-plants
#1
Chunhong Cheng, Zhijuan Wang, Bingjian Yuan, Xia Li
Alternative splicing (AS) of pre-mRNAs is one of the most important post-transcriptional regulations that enable a single gene to code for multiple proteins resulting in the biodiversity of proteins in eukaryotes. Recently, we have shown that an Arabidopsis thaliana RNA recognition motif-containing protein RBM25 is a novel splicing factor to modulate plant response to ABA during seed germination and post-germination through regulating HAB1 pre-mRNA AS. Here, we show that RBM25 is preferentially expressed in stomata and vascular tissues in Arabidopsis and is induced by ABA and abiotic stresses...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28342111/ckb1-is-involved-in-abscisic-acid-and-gibberellic-acid-signaling-to-regulate-stress-responses-in-arabidopsis-thaliana
#2
Congying Yuan, Jianping Ai, Hongping Chang, Wenjun Xiao, Lu Liu, Cheng Zhang, Zhuang He, Ji Huang, Jinyan Li, Xinhong Guo
Casein kinase II (CK2), an evolutionarily well-conserved Ser/Thr kinase, plays critical roles in all higher organisms including plants. CKB1 is a regulatory subunit beta of CK2. In this study, homozygous T-DNA mutants (ckb1-1 and ckb1-2) and over-expression plants (35S:CKB1-1, 35S:CKB1-2) of Arabidopsis thaliana were studied to understand the role of CKB1 in abiotic stress and gibberellic acid (GA) signaling. Histochemical staining showed that although CKB1 was expressed in all organs, it had a relatively higher expression in conducting tissues...
March 24, 2017: Journal of Plant Research
https://www.readbyqxmd.com/read/28341321/reprint-of-repeated-adolescent-activity-based-anorexia-influences-central-estrogen-signaling-and-adulthood-anxiety-like-behaviors-in-rats
#3
Tien-Jui Lee, Kimberly P Kinzig
Anorexia nervosa (AN) typically presents in adolescence and is highly comorbid with anxiety and depression, which often persist after elimination of AN symptomology. The activity-based anorexia (ABA) paradigm allows for evaluation of behavioral and neuroendocrine consequences of AN-like behaviors, including voluntary anorexia, hyperactivity, and disruption of the hypothalamic-pituitary-gonadal (HPG) and the hypothalamic pituitary adrenal (HPA) axis. Because ABA in adolescent females results in increased anxiety-like behavior in adulthood and the estrogen signaling system has been shown to play a role in anxiety and food intake, we investigated the role of ovarian hormones in adolescent ABA-treated rats, and long-term effects of mid- and late adolescent ABA exposure on behavior and estrogen signaling...
March 21, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28339719/the-pepper-wpp-domain-protein-cawdp1-acts-as-a-novel-negative-regulator-of-drought-stress-via-aba-signaling
#4
Chanmi Park, Chae Woo Lim, Woonhee Baek, Jung-Hyun Kim, Sohee Lim, Sang Hyon Kim, Kyung-Nam Kim, Sung Chul Lee
Plants are constantly challenged by various environmental stresses, including high salinity and drought, and they have evolved defense mechanisms to counteract the deleterious effects of these stresses. The plant hormone abscisic acid (ABA) regulates plant growth and developmental processes and mediates abiotic stress responses. Here, we report the identification and characterization of a novel CaWDP1 (Capsicum annuumWPP Domain Protein 1) protein. The expression of CaWDP1 in pepper leaves was induced by ABA, drought, and NaCl treatments, suggesting its role in the abiotic stress response...
February 22, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28339488/mutations-in-the-maize-zeta-carotene-desaturase-gene-lead-to-viviparous-kernel
#5
Yan Chen, Jiankun Li, Kaijian Fan, Yicong Du, Zhenjing Ren, Jing Xu, Jun Zheng, Yunjun Liu, Junjie Fu, Dongtao Ren, Guoying Wang
Preharvest sprouting reduces the maize quality and causes a significant yield loss in maize production. vp-wl2 is a Mutator (Mu)-induced viviparous mutant in maize, causing white or pale yellow kernels, dramatically reduced carotenoid and ABA content, and a high level of zeta-carotene accumulation. Here, we reported the cloning of the vp-wl2 gene using a modified digestion-ligation-amplification method (DLA). The results showed that an insertion of Mu9 in the first intron of the zeta-carotene desaturase (ZDS) gene results in the vp-wl2 mutation...
2017: PloS One
https://www.readbyqxmd.com/read/28338609/ectopic-expression-of-aeluropus-littoralis-plasma-membrane-protein-gene-altmp1-confers-abiotic-stress-tolerance-in-transgenic-tobacco-by-improving-water-status-and-cation-homeostasis
#6
Walid Ben Romdhane, Rania Ben-Saad, Donaldo Meynard, Jean-Luc Verdeil, Jalel Azaza, Nabil Zouari, Lotfi Fki, Emmanuel Guiderdoni, Abdullah Al-Doss, Afif Hassairi
We report here the isolation and functional analysis of AlTMP1 gene encoding a member of the PMP3 protein family. In Aeluropus littoralis, AlTMP1 is highly induced by abscisic acid (ABA), cold, salt, and osmotic stresses. Transgenic tobacco expressing AlTMP1 exhibited enhanced tolerance to salt, osmotic, H₂O₂, heat and freezing stresses at the seedling stage. Under greenhouse conditions, the transgenic plants showed a higher level of tolerance to drought than to salinity. Noteworthy, AlTMP1 plants yielded two- and five-fold more seeds than non-transgenic plants (NT) under salt and drought stresses, respectively...
March 24, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28337209/transcriptional-responses-of-chilean-quinoa-chenopodium-quinoa-willd-under-water-deficit-conditions-uncovers-aba-independent-expression-patterns
#7
Andrea Morales, Andres Zurita-Silva, Jonathan Maldonado, Herman Silva
HIGHLIGHTS R49 genotype displayed best performance on selected physiological parameters and highest tolerance to drought.R49 drought over-represented transcripts has exhibited 19% of genes (306 contigs) that presented no homology to published databases.Expression pattern for canonical responses to drought such as ABA biosynthesis and other genes induced in response to drought were assessed by qPCR. Global freshwater shortage is one of the biggest challenges of our time, often associated to misuse, increased consumption demands and the effects of climate change, paralleled with the desertification of vast areas...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28335772/production-of-s-2-aminobutyric-acid-and-s-2-aminobutanol-in-saccharomyces-cerevisiae
#8
Nora Weber, Anaëlle Hatsch, Ludivine Labagnere, Harald Heider
BACKGROUND: Saccharomyces cerevisiae (baker's yeast) has great potential as a whole-cell biocatalyst for multistep synthesis of various organic molecules. To date, however, few examples exist in the literature of the successful biosynthetic production of chemical compounds, in yeast, that do not exist in nature. Considering that more than 30% of all drugs on the market are purely chemical compounds, often produced by harsh synthetic chemistry or with very low yields, novel and environmentally sound production routes are highly desirable...
March 23, 2017: Microbial Cell Factories
https://www.readbyqxmd.com/read/28334275/identification-of-a-novel-bzip-transcription-factor-in-camellia-sinensis-as-a-negative-regulator-of-freezing-tolerance-in-transgenic-arabidopsis
#9
Lu Wang, Hongli Cao, Wenjun Qian, Lina Yao, Xinyuan Hao, Nana Li, Yajun Yang, Xinchao Wang
Background and Aims: Basic region/leucine zipper (bZIP) transcription factors play vital roles in the abiotic stress response of plants. However, little is known about the function of bZIP genes in Camellia sinensis . Methods: CsbZIP6 was overexpressed in Arabidopsis thaliana . Effects of CsbZIP6 overexpression on abscisic acid (ABA) sensitivity, freezing tolerance and the expression of cold-responsive genes in arabidopsis were studied. Key Results: CsbZIP6 was induced during cold acclimation in tea plant...
March 14, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28334053/new-insights-of-altered-lipid-profile-in-fragile-x-syndrome
#10
Artuela Çaku, Nabil G Seidah, Audrey Lortie, Nancy Gagné, Patrice Perron, Jean Dubé, Francois Corbin
BACKGROUND: Fragile X Syndrome (FXS) is the main genetic cause of autism and intellectual deficiency resulting the absence of the Fragile X Mental Retardation Protein (FMRP). Clinical picture is characterized by cognitive impairment associated with a broad spectrum of psychiatric comorbidities including autism spectrum disorders and attention-deficit/hyperactivity disorders. Some of these disorders have been associated with lipid abnormalities and lower cholesterol levels. Since lipids are important for neuronal development, we aim to investigate the lipid profile of French Canadian-FXS individuals and to identify the altered components of cholesterol metabolism as well as their association with clinical profile...
2017: PloS One
https://www.readbyqxmd.com/read/28332623/identification-and-characterization-of-the-abscisic-acid-aba-receptor-gene-family-and-its-expression-in-response-to-hormones-in-the-rubber-tree
#11
Dong Guo, Ying Zhou, Hui-Liang Li, Jia-Hong Zhu, Ying Wang, Xiong-Ting Chen, Shi-Qing Peng
Abscisic acid (ABA) is an essential phytohormone involved in diverse physiological processes. Although genome-wide analyses of the ABA receptor PYR/PYL/RCAR (PYL) protein/gene family have been performed in certain plant species, little is known about the ABA receptor protein/gene family in the rubber tree (Hevea brasiliensis). In this study, we identified 14 ABA receptor PYL proteins/genes (designated HbPYL1 through HbPYL14) in the most recent rubber tree genome. A phylogenetic tree was constructed, which demonstrated that HbPYLs can be divided into three subfamilies that correlate well with the corresponding Arabidopsis subfamilies...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28332004/social-setting-social-rank-and-hpa-axis-response-in-cynomolgus-monkeys
#12
Vanessa A Jimenez, Daicia C Allen, Megan N McClintick, Kathleen A Grant
RATIONALE: Hypothalamic-pituitary-adrenal (HPA) axis activity under different social settings in non-human primates is understudied. OBJECTIVE: The aim of this study is to evaluate the response of pituitary-adrenal hormones (adrenocorticotropic hormone (ACTH) and cortisol) to pharmacological challenges of the HPA axis in male cynomolgus macaques under different social settings. METHODS: Male cynomolgus macaques (Macaca fascicularis, n = 11) were individually (A) and socially housed (B) in alternation, over consecutive months, in an ABA design...
March 22, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28330935/the-role-of-enhanced-responses-to-aba1-era1-in-arabidopsis-stomatal-responses-is-beyond-aba-signaling
#13
Pirko Jalakas, Yi-Chun Huang, Yu-Hung Yeh, Laurent Zimmerli, Ebe Merilo, Hannes Kollist, Mikael Brosche
Proper stomatal responses are essential for plant function in an altered environment. The core signaling pathway for abscisic acid (ABA)-induced stomatal closure involves perception of the hormone that leads to the activation of guard cell anion channels by the protein kinase OPEN STOMATA1 (OST1). Several other regulators are suggested to modulate the ABA signaling pathway, including the protein ENHANCED RESPONSE TO ABA 1 (ERA1), that encodes the farnesyl transferase beta subunit. The era1 mutant is hypersensitive to ABA during seed germination and shows a more closed stomata phenotype...
March 22, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28330556/microrna156-improves-drought-stress-tolerance-in-alfalfa-medicago-sativa-by-silencing-spl13
#14
Muhammad Arshad, Biruk A Feyissa, Lisa Amyot, Banyar Aung, Abdelali Hannoufa
Alfalfa (Medicago sativa) is an important forage crop that is often grown in areas that frequently experience drought and water shortage. MicroRNA156 (miR156) is an emerging tool for improving various traits in plants. We tested the role of miR156d in drought response of alfalfa, and observed a significant improvement in drought tolerance of miR156 overexpression (miR156OE) alfalfa genotypes compared to the wild type control (WT). In addition to higher survival and reduced water loss, miR156OE genotypes also maintained higher stomatal conductance compared to WT during drought stress...
May 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28330553/physiological-and-molecular-insights-into-the-high-salinity-tolerance-of-pongamia-pinnata-l-pierre-a-potential-biofuel-tree-species
#15
Sureshbabu Marriboina, Debashree Sengupta, Sumit Kumar, Attipalli R Reddy
Soil salinity is gradually becoming a threat to the global economy by affecting agricultural productivity worldwide. Here, we analyze the salinity tolerance of Pongamia pinnata with an insight into the underlying physiological and molecular responses. Despite a reduction in net photosynthetic rate, P. pinnata efficiently maintained its leaf water potentials even at 500mM NaCl for 15days and displayed no visible stress symptoms. Na(+) localization analysis using CoroNa-Green AM revealed effective Na(+) sequestration in the roots when compared to leaves...
May 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28330552/ectopic-expression-of-taoep16-2-5b-a-wheat-plastid-outer-envelope-protein-gene-enhances-heat-and-drought-stress-tolerance-in-transgenic-arabidopsis-plants
#16
Xinshan Zang, Xiaoli Geng, Kelu Liu, Fei Wang, Zhenshan Liu, Liyuan Zhang, Yue Zhao, Xuejun Tian, Zhaorong Hu, Yingyin Yao, Zhongfu Ni, Mingming Xin, Qixin Sun, Huiru Peng
Abiotic stresses, such as heat and drought, are major environmental factors restricting crop productivity and quality worldwide. A plastid outer envelope protein gene, TaOEP16-2, was identified from our previous transcriptome analysis [1,2]. In this study, the isolation and functional characterization of the TaOEP16-2 gene was reported. Three homoeologous sequences of TaOEP16-2 were isolated from hexaploid wheat, which were localized on the chromosomes 5A, 5B and 5D, respectively. These three homoeologues exhibited different expression patterns under heat stress conditions, TaOEP16-2-5B was the dominant one, and TaOEP16-2-5B was selected for further analysis...
May 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28330319/roles-of-plant-hormones-and-anti-apoptosis-genes-during-drought-stress-in-rice-oryza-sativa-l
#17
Mohammad Ubaidillah, Fika Ayu Safitri, Jun-Hyeon Jo, Sang-Kyu Lee, Adil Hussain, Bong-Gyu Mun, Il Kyung Chung, Byung-Wook Yun, Kyung-Min Kim
We previously identified the rice (Oryza sativa) senescence-associated gene OsSAP which encodes a highly conserved protein involved in anti-apoptotic activity. This novel Bax suppressor-related gene regulates tolerance to multiple stresses in yeast. Here, we show the effects of drought stress on leaf and root tissues of plants over-expressing OsSAP in relation to the levels of phytohormones, abscisic acid (ABA), jasmonic acid (JA), indole-3-carboxylic acid (ICA), gibberellic acid (GA3), and zeatin. Results showed that rice plants over-expressing SAP were tolerant to drought stress compared to wild type and the plants over-expressing AtBI-1, which is a homolog of the human Bax inhibitor-1 in Arabidopsis...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28329733/comparison-of-transcriptional-expression-patterns-of-carotenoid-metabolism-in-cabernet-sauvignon-grapes-from-two-regions-with-distinct-climate
#18
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/28328498/a-framework-for-patient-state-tracking-by-classifying-multiscalar-physiologic-waveform-features
#19
Benjamin Vandendriessche, Mustafa Abas, Thomas Dick, Kenneth Loparo, Frank Jacono
OBJECTIVE: State-of-the-art algorithms that quantify nonlinear dynamics in physiologic waveforms are underutilized clinically due to their esoteric nature. We present a generalizable framework for classifying multiscalar waveform features, designed for patient-state tracking directly at the bedside. METHODS: An artificial neural network classifier was designed to evaluate multiscale waveform features against a fingerprint database of multifractal synthetic time series...
March 17, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28326315/genomewide-expression-and-functional-interactions-of-genes-under-drought-stress-in-maize
#20
Nepolean Thirunavukkarasu, Rinku Sharma, Nidhi Singh, Kaliyugam Shiriga, Sweta Mohan, Swati Mittal, Shikha Mittal, Mallana Gowdra Mallikarjuna, Atmakuri Ramakrishna Rao, Prasanta Kumar Dash, Firoz Hossain, Hari Shanker Gupta
A genomewide transcriptome assay of two subtropical genotypes of maize was used to observe the expression of genes at seedling stage of drought stress. The number of genes expressed differentially was greater in HKI1532 (a drought tolerant genotype) than in PC3 (a drought sensitive genotype), indicating primary differences at the transcriptional level in stress tolerance. The global coexpression networks of the two genotypes differed significantly with respect to the number of modules and the coexpression pattern within the modules...
2017: International Journal of Genomics
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