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https://www.readbyqxmd.com/read/28816619/a-survey-of-the-pyrabactin-resistance-like-abscisic-acid-receptor-gene-family-in-poplar
#1
Jingling Yu, Hejuan Li, Yajing Peng, Lei Yang, Fugeng Zhao, Sheng Luan, Wenzhi Lan
The conserved PYR/PYL/RCAR family acts as abscisic acid (ABA) receptors for land plants to adapt to terrestrial environments. Our recent study reported that the exogenous overexpression of poplar PtPYRL1 and PtPYRL5, the PYR/PYL/RCAR orthologs, promoted the sensitivity of transgenic Arabidopsis to ABA responses. Here, we surveyed the PtPYRL family in poplar, and revealed that although the sequence and structure are relatively conserved among these receptors, PtPYRL members have differential expression patterns and the sensitivity to ABA or drought treatment, suggesting that PtPYRLs might be good candidates to a future biotechnological use in order to enhance poplar resistance to water-stress environments...
August 17, 2017: Plant Signaling & Behavior
https://www.readbyqxmd.com/read/28814803/the-bhlh-transcription-factor-cgbhlh001-is-a-potential-interaction-partner-of-cdpk-in-halophyte-chenopodium-glaucum
#2
Juan Wang, Gang Cheng, Cui Wang, Zhuanzhuan He, Xinxin Lan, Shiyue Zhang, Haiyan Lan
Plants have evolved different abilities to adapt to the ever-fluctuating environments for sessility. Calcium-dependent protein kinase (CDPK) is believed to play a pivotal role in abiotic stress signaling. So far, study on the specific substrates that CDPK recognized in response to adversity is limited. In the present study, we revealed a potential interaction between CDPK and a bHLH transcription factor under salt stress in Chenopodium glaucum. First, we identified a CgCDPK, which was up-regulated under salt and drought stress; then by Y2H screening, CgCDPK was detected to be involved in interaction with a bHLH TF (named as CgbHLH001), which also positively respond to salt and drought stress...
August 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28813005/identification-and-functional-divergence-analysis-of-wox-gene-family-in-paper-mulberry
#3
Feng Tang, Naizhi Chen, Meiling Zhao, Yucheng Wang, Ruiping He, Xianjun Peng, Shihua Shen
The WOX (WUSCHEL-related homeobox) is a plant-specific transcription factor involved in plant development and stress response. However, few studies have been reported on the WOX gene in woody plants. In this study, 10 BpWOX genes were isolated from paper mulberry by RACE-PCR and categorized into three clades through phylogenetic analysis, ancient, intermediate and WUS clade. Among them, five members had the transcriptional activity detected by yeast one-hybrid and seven were uniquely localized to the nucleus through green fluorescent protein (GFP) observation...
August 16, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28811563/crosstalk-between-diurnal-rhythm-and-water-stress-reveals-an-altered-primary-carbon-flux-into-soluble-sugars-in-drought-treated-rice-leaves
#4
Seo-Woo Kim, Sang-Kyu Lee, Hee-Jeong Jeong, Gynheung An, Jong-Seong Jeon, Ki-Hong Jung
Plants retain rhythmic physiological responses when adapting to environmental challenges. However, possible integrations between drought conditions and those responses have not received much focus, especially regarding crop plants, and the relationship between abiotic stress and the diurnal cycle is generally not considered. Therefore, we conducted a genome-wide analysis to identify genes showing both diurnal regulation and water-deficiency response in rice (Oryza sativa). Among the 712 drought-responsive genes primary identified, 56...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28805715/identification-and-analysis-of-mitogen-activated-protein-kinase-mapk-cascades-in-fragaria-vesca
#5
Heying Zhou, Suyue Ren, Yuanfang Han, Qing Zhang, Ling Qin, Yu Xing
Mitogen-activated protein kinase (MAPK) cascades are highly conserved signaling modules in eukaryotes, including yeasts, plants and animals. MAPK cascades are responsible for protein phosphorylation during signal transduction events, and typically consist of three protein kinases: MAPK, MAPK kinase, and MAPK kinase kinase. In this current study, we identified a total of 12 FvMAPK, 7 FvMAPKK, 73 FvMAPKKK, and one FvMAPKKKK genes in the recently published Fragaria vesca genome sequence. This work reported the classification, annotation and phylogenetic evaluation of these genes and an assessment of conserved motifs and the expression profiling of members of the gene family were also analyzed here...
August 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28803694/shaping-an-optimal-soil-by-root-soil-interaction
#6
REVIEW
Kemo Jin, Philip J White, William R Whalley, Jianbo Shen, Lei Shi
Crop production depends on the availability of water and mineral nutrients, and increased yields might be facilitated by a greater focus on roots-soil interactions. Soil properties affecting plant growth include drought, compaction, nutrient deficiency, mineral toxicity, salinity, and submergence. Plant roots respond to the soil environment both spatially and temporally by avoiding stressful soil environments and proliferating in more favorable environments. We observe that crops can be bred for specific root architectural and biochemical traits that facilitate soil exploration and resource acquisition, enabling greater crop yields...
August 10, 2017: Trends in Plant Science
https://www.readbyqxmd.com/read/28803325/an-endoplasmic-reticulum-localized-coffea-arabica-burp-domain-containing-protein-affects-the-response-of-transgenic-arabidopsis-plants-to-diverse-abiotic-stresses
#7
Sy Nguyen Dinh, Hunseung Kang
The Coffea arabica BURP domain-containing gene plays an important role in the response of transgenic Arabidopsis plants to abiotic stresses via regulating the level of diverse proteins. Although the functions of plant-specific BURP domain-containing proteins (BDP) have been determined for a few plants, their roles in the growth, development, and stress responses of most plant species, including coffee plant (Coffea arabica), are largely unknown. In this study, the function of a C. arabica BDP, designated CaBDP1, was investigated in transgenic Arabidopsis plants...
August 12, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28802186/a-l-type-lectin-gene-is-involved-in-the-response-to-hormonal-treatment-and-water-deficit-in-volkamer-lemon
#8
Dayse Drielly Sousa Santana Vieira, Giovanni Emiliani, Paola Bartolini, Alessandra Podda, Mauro Centritto, François Luro, Renata Del Carratore, Raphaël Morillon, Abelmon Gesteira, Biancaelena Maserti
Combination of biotic and abiotic stress is a major challenge for crop and fruit production. Thus, identification of genes involved in cross-response to abiotic and biotic stress is of great importance for breeding superior genotypes. Lectins are glycan-binding proteins with a functions in the developmental processes as well as in the response to biotic and abiotic stress. In this work, a lectin like gene, namely ClLectin1, was characterized in Volkamer lemon and its expression was studied in plants exposed to either water stress, hormonal elicitors (JA, SA, ABA) or wounding to understand whether this gene may have a function in the response to multiple stress combination...
August 1, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28801593/genetic-variations-of-hvp5cs1-and-their-association-with-drought-tolerance-related-traits-in-barley-hordeum-vulgare-l
#9
Yanshi Xia, Ronghua Li, Guihua Bai, Kadambot H M Siddique, Rajeev K Varshney, Michael Baum, Guijun Yan, Peiguo Guo
Delta-1-pyrroline-5-carboxylate synthase gene1 (P5CS1) is the key gene involved in the biosynthesis of proline and is significantly induced by drought stress. The exploration of genetic variation in HvP5CS1 may facilitate a better understanding of the mechanism of drought adaptation in barley. In the current study, 41 polymorphisms including 16 single nucleotide polymorphisms (SNPs) and 25 insertions/deletions (indels) were detected in HvP5CS1 among 287 barley (Hordeum vulgare L.) accessions collected worldwide, with 13 distinct haplotypes identified in the barley collection...
August 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28799077/arbuscular-mycorrhizal-fungus-inoculation-reduces-the-drought-resistance-advantage-of-endophyte-infected-versus-endophyte-free-leymus-chinensis
#10
Hui Liu, Wei Chen, Man Wu, Rihan Wu, Yong Zhou, Yubao Gao, Anzhi Ren
Grasses can be infected simultaneously by endophytic fungi and arbuscular mycorrhizal (AM) fungi. In this study, we tested the hypothesis that endophyte-associated drought resistance of a native grass was affected by an AM fungus. In a greenhouse experiment, we compared the performance of endophyte-infected (EI) and endophyte-free (EF) Leymus chinensis, a dominant species native to the Inner Mongolia steppe, under altered water and AM fungus availability. The results showed that endophyte infection significantly increased drought resistance of the host grass, but the beneficial effects were reduced by AM fungus inoculation...
August 10, 2017: Mycorrhiza
https://www.readbyqxmd.com/read/28798765/physcomitrella-patens-dehydrins-ppdhna-and-ppdhnc-confer-salinity-and-drought-tolerance-to-transgenic-arabidopsis-plants
#11
Qilong Li, Xiaochen Zhang, Qiang Lv, Dong Zhu, Tianhang Qiu, Yu Xu, Fang Bao, Yikun He, Yong Hu
Dehydrins (DHNs) as a member of late-embryogenesis-abundant (LEA) proteins are involved in plant abiotic stress tolerance. Two dehydrins PpDHNA and PpDHNC were previously characterized from the moss Physcomitrella patens, which has been suggested to be an ideal model plant to study stress tolerance due to its adaptability to extreme environment. In this study, functions of these two genes were analyzed by heterologous expressions in Arabidopsis. Phenotype analysis revealed that overexpressing PpDHN dehydrin lines had stronger stress resistance than wild type and empty-vector control lines...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28798764/root-transcriptomic-analysis-revealing-the-importance-of-energy-metabolism-to-the-development-of-deep-roots-in-rice-oryza-sativa-l
#12
Qiaojun Lou, Liang Chen, Hanwei Mei, Kai Xu, Haibin Wei, Fangjun Feng, Tiemei Li, Xiaomeng Pang, Caiping Shi, Lijun Luo, Yang Zhong
Drought is the most serious abiotic stress limiting rice production, and deep root is the key contributor to drought avoidance. However, the genetic mechanism regulating the development of deep roots is largely unknown. In this study, the transcriptomes of 74 root samples from 37 rice varieties, representing the extreme genotypes of shallow or deep rooting, were surveyed by RNA-seq. The 13,242 differentially expressed genes (DEGs) between deep rooting and shallow rooting varieties (H vs. L) were enriched in the pathway of genetic information processing and metabolism, while the 1,052 DEGs between the deep roots and shallow roots from each of the plants (D vs...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28798756/aerial-warfare-a-volatile-dialogue-between-the-plant-pathogen-verticillium-longisporum-and-its-antagonist-paenibacillus-polymyxa
#13
Daria Rybakova, Ute Rack-Wetzlinger, Tomislav Cernava, Angelika Schaefer, Maria Schmuck, Gabriele Berg
Verticillium wilt caused by Verticillium spp. results in severe yield losses in a broad range of crops. Verticillium outbreaks are challenging to control, and exacerbated by increases in soil temperatures and drought associated with global warming. Employing natural antagonists as biocontrol agents offers a promising approach to addressing this challenge. Paenibacillus polymyxa Sb3-1 was proven to reduce the growth of Verticillium longisporum during in vitro experiments and was shown to promote the growth of oilseed rape seedlings infested with V...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28798754/isoprene-responses-and-functions-in-plants-challenged-by-environmental-pressures-associated-to-climate-change
#14
REVIEW
Alessio Fini, Cecilia Brunetti, Francesco Loreto, Mauro Centritto, Francesco Ferrini, Massimiliano Tattini
The functional reasons for isoprene emission are still a matter of hot debate. It was hypothesized that isoprene biosynthesis evolved as an ancestral mechanism in plants adapted to high water availability, to cope with transient and recurrent oxidative stresses during their water-to-land transition. There is a tight association between isoprene emission and species hygrophily, suggesting that isoprene emission may be a favorable trait to cope with occasional exposure to stresses in mesic environments. The suite of morpho-anatomical traits does not allow a conservative water use in hygrophilic mesophytes challenged by the environmental pressures imposed or exacerbated by drought and heat stress...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28796917/single-base-methylome-analysis-reveals-dynamic-epigenomic-differences-associated-with-water-deficit-in-apple
#15
Jidi Xu, Shasha Zhou, Xiaoqing Gong, Yi Song, Steve van Nocker, Fengwang Ma, Qingmei Guan
Cytosine methylation is an essential feature of epigenetic regulation and is involved in various biological processes. Although cytosine methylation has been analyzed at the genomic scale for several plant species, there is a general lack of understanding of the dynamics of global and genic DNA methylation in plants growing in environments challenged with biotic and abiotic stresses. In this study, we mapped cytosine methylation at single-base resolution in the genome of commercial apple (Malus x domestica), and analyzed changes in methylation patterns associated with water deficit in representative drought-sensitive and drought-tolerant cultivars...
August 10, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28795103/rna-seq-data-of-oryza-sativa-cultivar-kuku-belang-under-peg-treatment
#16
Bernadette Toni, Hossein Hosseini Monfared, Mohd Noor Mat Isa, Nurulhikma Md Isa, Ismanizan Ismail, Zamri Zainal
Drought stress is the main abiotic factor affecting rice production. Rain-fed upland rice which is grown on unbounded fields and totally dependent on rainfall for moisture is more prone to drought stress compared to rice from other ecosystems. However, upland rice has adapted to this limited water condition, thus are more drought tolerant than rice from other ecosystems. We performed the first transcriptome sequencing of drought tolerant indica upland rice cultivar Kuku Belang to identify differentially expressed genes related to drought tolerance mechanism...
October 2017: Data in Brief
https://www.readbyqxmd.com/read/28794928/silicon-and-water-deficit-stress-differentially-modulate-physiology-and-ultrastructure-in-wheat-triticum-aestivum-l
#17
Ling Xu, Faisal Islam, Basharat Ali, Zengfei Pei, Juanjuan Li, Muhammad Awais Ghani, Weijun Zhou
Plants combat drought stress by coordinating various metabolic enzymes, and endogenous phytohormones, such as indole acetic acid (IAA) and abscisic acid (ABA). In the present study, 37-day-old wheat seedlings were subjected to the Hoagland solution with 20% PEG for 7 days (to create the artificial osmotic stress environment) in the greenhouse, and were supplemented with an optimized concentration (1.0 mM) of silicon (Si) to alleviate the negative effects of former stress on physiological, biochemical and phytohormones contents...
August 2017: 3 Biotech
https://www.readbyqxmd.com/read/28793366/cadmium-induced-melatonin-synthesis-in-rice-requires-light-hydrogen-peroxide-and-nitric-oxide-key-regulatory-roles-for-tryptophan-decarboxylase-and-caffeic-acid-o-methyltransferase
#18
Kyungjin Lee, Geun-Hee Choi, Kyoungwhan Back
In plants, melatonin production is induced by stimuli such as cold and drought, and cadmium (Cd) is the best elicitor of melatonin production in rice. However, the mechanism by which Cd induces melatonin synthesis in plants remains unknown. We challenged rice seedlings with Cd under different light conditions and found that continuous light produced the highest levels of melatonin, while continuous dark failed to induce melatonin production. Transcriptional and translational induction of tryptophan decarboxylase contributed to the light induction of melatonin during Cd treatment, whereas the protein level of light-induced caffeic acid O-methyltransferase (COMT) was decreased by Cd treatment...
August 9, 2017: Journal of Pineal Research
https://www.readbyqxmd.com/read/28793281/photosynthetic-limitation-and-mechanisms-of-photoprotection-under-drought-and-recovery-of-calotropis-procera-an-evergreen-c3-from-arid-regions
#19
Rebeca Rivas, Gabriella Frosi, Diego G Ramos, Silvia Pereira, Ana M Benko-Iseppon, Mauro G Santos
Calotropis procera is a C3 plant native from arid environmental zones. It is an evergreen, shrubby, non-woody plant with intense photosynthetic metabolism during the dry season. We measured photosynthetic parameters and leaf biochemical traits, such as gas exchange, photochemical parameters, A/Ci analysis, organic solutes, and antioxidant enzymes under controlled conditions in potted plants during drought stress, and following recovery conditions to obtain a better insight in the drought stress responses of C...
July 31, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28791202/transcriptomic-analysis-genic-ssr-development-and-genetic-diversity-of-proso-millet-panicum-miliaceum-poaceae
#20
Siyu Hou, Zhaoxia Sun, Yaoshen Li, Yijie Wang, Hubin Ling, Guofang Xing, Yuanhuai Han, Hongying Li
PREMISE OF THE STUDY: Proso millet (Panicum miliaceum; Poaceae) is a minor crop with good nutritional qualities and strong tolerance to drought stress and soil infertility. However, studies on genetic diversity have been limited due to a lack of efficient genetic markers. METHODS: Illumina sequencing technology was used to generate short read sequences of proso millet, and de novo transcriptome assemblies were used to develop a de novo assembly of proso millet. Genic simple sequence repeat (SSR) markers were identified and used to detect polymorphism among 56 accessions...
July 2017: Applications in Plant Sciences
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