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https://www.readbyqxmd.com/read/27908260/-a-proteomics-approach-to-discover-drought-tolerance-proteins-in-wheat-pollen-grain-at-meiosis-stage
#1
Reza Fotovat, Mehdi Alikhani, Mostafa Valizadeh, Mehdi Mirzaei, Ghasem Hossein Salekdeh
Plants reproductive phase, when grain yield and consequently farmers' investment is most in jeopardy, is considered as the most sensitive stage to drought stress. In this study, we aimed to explore the proteomic response of wheat anther at meiosis stage in a drought tolerant, Darab, and susceptible, Shiraz, wheat genotypes. Wheat plants were exposed to drought stress at meiosis stage for four days under controlled environmental conditions. Then, anthers from both genotypes were sampled, and their proteomes were examined via quantitative proteomics analysis...
November 30, 2016: Protein and Peptide Letters
https://www.readbyqxmd.com/read/27907902/active-5-splice-sites-regulate-the-biogenesis-efficiency-of-arabidopsis-micrornas-derived-from-intron-containing-genes
#2
Katarzyna Knop, Agata Stepien, Maria Barciszewska-Pacak, Michal Taube, Dawid Bielewicz, Michal Michalak, Jan W Borst, Artur Jarmolowski, Zofia Szweykowska-Kulinska
Arabidopsis, miR402 that is encoded within the first intron of a protein-coding gene At1g77230, is induced by heat stress. Its upregulation correlates with splicing inhibition and intronic proximal polyA site selection. It suggests that miR402 is not processed from an intron, but rather from a shorter transcript after selection of the proximal polyA site within this intron. Recently, introns and active 5' splice sites (5'ss') have been shown to stimulate the accumulation of miRNAs encoded within the first exons of intron-containing MIR genes...
October 5, 2016: Nucleic Acids Research
https://www.readbyqxmd.com/read/27900475/microclimatic-effects-of-planted-hydroponic-structures-in-urban-environment-measurements-and-simulations
#3
N Katsoulas, D Antoniadis, I L Tsirogiannis, E Labraki, T Bartzanas, C Kittas
The objectives of this effort was to study the effect of vertical (green wall) and horizontal (pergola) green structures on the microclimate conditions of the building surroundings and estimate the thermal perception and heat stress conditions near the two structures. The experimental data were used to validate the results simulated by the recent version (V4.0 preview III) of ENVI-met software which was used to simulate the effect of different design parameters of a pergola and a green façade on microclimate and heat stress conditions...
November 29, 2016: International Journal of Biometeorology
https://www.readbyqxmd.com/read/27900399/quantitative-trait-loci-mapping-of-heat-tolerance-in-broccoli-brassica-oleracea-var-italica-using-genotyping-by-sequencing
#4
Sandra E Branham, Zachary J Stansell, David M Couillard, Mark W Farnham
Five quantitative trait loci and one epistatic interaction were associated with heat tolerance in a doubled haploid population of broccoli evaluated in three summer field trials. Predicted rising global temperatures due to climate change have generated a demand for crops that are resistant to yield and quality losses from heat stress. Broccoli (Brassica oleracea var. italica) is a cool weather crop with high temperatures during production decreasing both head quality and yield. Breeding for heat tolerance in broccoli has potential to both expand viable production areas and extend the growing season but breeding efficiency is constrained by limited genetic information...
November 29, 2016: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/27889440/non-heat-shock-responsive-roles-of-hsf1-in-candida-albicans-are-essential-under-iron-deprivation-and-drug-defense
#5
Remya Nair, Mohd Shariq, Sanjiveeni Dhamgaye, Chinmay K Mukhopadhyay, Shamim Shaikh, Rajendra Prasad
Recently, we have reported that the conditional mutant of the heat shock factor-1 (HSF1) in Candida albicans displays enhanced susceptibility not only towards a plant alkaloid, berberine, but also to diverse antifungal drugs. The present study attempts to identify additional phenotypes highlighting the non-heat shock responsive roles of HSF1 that could be correlated with the enhanced drug susceptibility. We uncover an intricate relationship between cellular iron and HSF1 mediated drug susceptibility of C. albicans...
November 24, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27880018/drought-related-secondary-metabolites-of-barley-hordeum-vulgare-l-leaves-and-their-mqtls
#6
Anna Piasecka, Aneta Sawikowska, Anetta Kuczyńska, Piotr Ogrodowicz, Krzysztof Mikołajczak, Karolina Krystkowiak, Kornelia Gudyś, Justyna Guzy-Wróbelska, Paweł Krajewski, Piotr Kachlicki
Determination of the role of plant secondary metabolites in stress conditions is problematic due to diversity of their structures and complexity of interdependence with different biological pathways. Correlation of the metabolomic data with the genetic background provides essential information on the features of metabolites. LC-MS analysis of leaf metabolites from 100 barley recombinant inbred lines (RILs) revealed that 98 traits among 135 detected phenolic and terpenoid compounds significantly changed the level as a result of drought stress...
November 23, 2016: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/27879375/the-role-of-oxidative-stress-in-koenimbine-induced-dna-damage-and-heat-shock-protein-modulation-in-hepg2-cells
#7
Yahya Hasan Hobani
Murraya koenigii (L.) Spreng, is a significant herb of traditional Ayurvedic system of medicine. Koenimbine, a carbazole alkaloid isolated from this plant holds antiproliferative and apoptotic effects. The aim of this study was to assess koenimbine-induced DNA damage and to clarify the role of free radicals in cell death mechanisms, using HepG2 cells. Methods The level of cytotoxicity was assayed by MTT assay. To elucidate the role of glutathione (GSH), the intracellular GSH level was analyzed. The effect of koenimbine in the cell mitochondria was evaluated using mitochondrial membrane potential (MMP) changes...
November 21, 2016: Integrative Cancer Therapies
https://www.readbyqxmd.com/read/27877180/heat-stress-is-more-damaging-to-superior-spikelets-than-inferiors-of-rice-oryza-sativa-l-due-to-their-different-organ-temperatures
#8
Guanfu Fu, Baohua Feng, Caixia Zhang, Yongjie Yang, Xueqin Yang, Tingting Chen, Xia Zhao, Xiufu Zhang, Qianyu Jin, Longxing Tao
In general, the fertility and kernel weight of inferior spikelets of rice (Oryza Sativa L.) are obviously lower than those of superior spikelets, especially under abiotic stress. However, different responses to heat stress are seemed to show between the superior and inferior spikelet, and this response is scarcely documented that the intrinsic factors remain elusive. In order to reveal the mechanism underlying, two rice plants with different heat tolerance were subjected to heat stress of 40°C at anthesis...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27862521/design-of-an-optimal-promoter-involved-in-the-heat-induced-transcriptional-pathway-in-arabidopsis-soybean-rice-and-maize
#9
Kyonoshin Maruyama, Takuya Ogata, Norihito Kanamori, Kyouko Yoshiwara, Shingo Goto, Yoshiharu Y Yamamoto, Yuko Tokoro, Chihiro Noda, Yuta Takaki, Hiroko Urawa, Satoshi Iuchi, Kaoru Urano, Takuhiro Yoshida, Tetsuya Sakurai, Mikiko Kojima, Hitoshi Sakakibara, Kazuo Shinozaki, Kazuko Yamaguchi-Shinozaki
Interactions between heat shock factor (HSF) and the heat shock response element (HSE) are important during the heat shock response (HSR) of flora and fauna. Moreover, plant HSFs that are involved in heat stress are also involved in abiotic stresses such as dehydration and cold as well as development, cell differentiation, and proliferation. Because the specific combination of HSFs and HSEs involved in plants under heat stress remains unclear, the mechanism of their interaction has not yet been utilized in plant molecular breeding for climate change...
November 15, 2016: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/27861954/special-trends-in-cbf-and-dreb2-groups-in-eucalyptus-gunnii-vs-eucalyptus-grandis-suggest-that-cbf-are-master-players-in-the-trade-off-between-growth-and-stress-resistance
#10
Hong C Nguyen, Phi B Cao, Hélène San Clemente, Raphaël Ployet, Fabien Mounet, Natalie Ladouce, Luc Harvengt, Christiane Marque, Chantal Teulieres
Annotation of the Eucalyptus grandis genome showed a large amplification of the DREB1/CBF group without recent DREB2 gene duplication compared to other plant species. The present annotation of the CBF and DREB2 genes from a draft of the Eucalyptus gunnii genome sequence reveals at least an additional CBF copy in the E. gunnii genome compared to E. grandis, suggesting that this group is still evolving, unlike the DREB2 group. This study aims to investigate the redundancy/neo- or sub-functionalization of the duplicates and the relative involvement of the two groups in abiotic stress responses in both E...
November 16, 2016: Physiologia Plantarum
https://www.readbyqxmd.com/read/27857174/heat-shock-transcription-factors-in-banana-genome-wide-characterization-and-expression-profile-analysis-during-development-and-stress-response
#11
Yunxie Wei, Wei Hu, Feiyu Xia, Hongqiu Zeng, Xiaolin Li, Yu Yan, Chaozu He, Haitao Shi
Banana (Musa acuminata) is one of the most popular fresh fruits. However, the rapid spread of fungal pathogen Fusarium oxysporum f. sp. cubense (Foc) in tropical areas severely affected banana growth and production. Thus, it is very important to identify candidate genes involved in banana response to abiotic stress and pathogen infection, as well as the molecular mechanism and possible utilization for genetic breeding. Heat stress transcription factors (Hsfs) are widely known for their common involvement in various abiotic stresses and plant-pathogen interaction...
November 18, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27855193/transcriptome-wide-identification-and-expression-analysis-of-the-nac-gene-family-in-tea-plant-camellia-sinensis-l-o-kuntze
#12
Yong-Xin Wang, Zhi-Wei Liu, Zhi-Jun Wu, Hui Li, Jing Zhuang
In plants, the NAC (NAM-ATAF1/2-CUC) family of proteins constitutes several transcription factors and plays vital roles in diverse biological processes, such as growth, development, and adaption to adverse factors. Tea, as a non-alcoholic drink, is known for its bioactive ingredients and health efficacy. Currently, knowledge about NAC gene family in tea plant remains very limited. In this study, a total of 45 CsNAC genes encoding NAC proteins including three membrane-bound members were identified in tea plant through transcriptome analysis...
2016: PloS One
https://www.readbyqxmd.com/read/27853463/timing-effects-of-heat-stress-on-plant-ecophysiological-characteristics-and-growth
#13
Dan Wang, Scott A Heckathorn, Kumar Mainali, Rajan Tripathee
Heat-waves with higher intensity and frequency and longer durations are expected in the future due to global warming, which could have dramatic impacts in agriculture, economy and ecology. This field study examined how plant responded to heat-stress (HS) treatment at different timing in naturally occurring vegetation. HS treatment (5 days at 40.5°C) were applied to 12 1 m(2) plots in restored prairie vegetation dominated by a warm-season C4 grass, Andropogon gerardii, and a warm-season C3 forb, Solidago canadensis, at different growing stages...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27852154/the-influence-of-occupational-heat-exposure-on-cognitive-performance-and-blood-level-of-stress-hormones-a-field-study-report
#14
Adel Mazlomi, Farideh Golbabaei, Somayeh Farhang Dehghan, Marzieh Abbasinia, Somayeh Mahmoud Khani, Mohammad Ansari, Mostafa Hosseini
INTRODUCTION: This article aimed to investigate the effect of heat stress on cognitive performance and the blood concentration of stress hormones among workers of a foundry plant. METHODS: Seventy workers within the exposed (35 people) and unexposed (35 people) groups were studied. The wet bulb globe temperature (WBGT) index was measured for heat stress assessment. The cognitive performance tests were conducted using the Stroop color word test (SCWT) before and during working hours...
November 17, 2016: International Journal of Occupational Safety and Ergonomics: JOSE
https://www.readbyqxmd.com/read/27842501/analysis-of-transcriptional-response-to-heat-stress-in-rhazya-stricta
#15
Abdullah Y Obaid, Jamal S M Sabir, Ahmed Atef, Xuan Liu, Sherif Edris, Fotouh M El-Domyati, Mohammed Z Mutwakil, Nour O Gadalla, Nahid H Hajrah, Magdy A Al-Kordy, Neil Hall, Ahmed Bahieldin, Robert K Jansen
BACKGROUND: Climate change is predicted to be a serious threat to agriculture due to the need for crops to be able to tolerate increased heat stress. Desert plants have already adapted to high levels of heat stress so they make excellent systems for identifying genes involved in thermotolerance. Rhazya stricta is an evergreen shrub that is native to extremely hot regions across Western and South Asia, making it an excellent system for examining plant responses to heat stress. Transcriptomes of apical and mature leaves of R...
November 14, 2016: BMC Plant Biology
https://www.readbyqxmd.com/read/27842496/proteomics-analysis-reveals-novel-host-molecular-mechanisms-associated-with-thermotherapy-of-ca-liberibacter-asiaticus-infected-citrus-plants
#16
Chika C Nwugo, Melissa S Doud, Yong-Ping Duan, Hong Lin
BACKGROUND: Citrus Huanglongbing (HLB), which is linked to the bacterial pathogen 'Ca. Liberibacter asiaticus' (Las), is the most devastating disease of citrus plants, and longer-term control measures via breeding or genetic engineering have been unwieldy because all cultivated citrus species are susceptible to the disease. However, the degree of susceptibility varies among citrus species, which has prompted efforts to identify potential Las resistance/tolerance-related genes in citrus plants for application in breeding or genetic engineering programs...
November 14, 2016: BMC Plant Biology
https://www.readbyqxmd.com/read/27835876/azadiradione-ameliorates-polyglutamine-expansion-disease-in-drosophila-by-potentiating-dna-binding-activity-of-heat-shock-factor-1
#17
Vinod K Nelson, Asif Ali, Naibedya Dutta, Suvranil Ghosh, Manas Jana, Arnab Ganguli, Andrei Komarov, Soumyadip Paul, Vibha Dwivedi, Subhrangsu Chatterjee, Nihar R Jana, Subhash C Lakhotia, Gopal Chakrabarti, Anup K Misra, Subhash C Mandal, Mahadeb Pal
Aggregation of proteins with the expansion of polyglutamine tracts in the brain underlies progressive genetic neurodegenerative diseases (NDs) like Huntington's disease and spinocerebellar ataxias (SCA). An insensitive cellular proteotoxic stress response to non-native protein oligomers is common in such conditions. Indeed, upregulation of heat shock factor 1 (HSF1) function and its target protein chaperone expression has shown promising results in animal models of NDs. Using an HSF1 sensitive cell based reporter screening, we have isolated azadiradione (AZD) from the methanolic extract of seeds of Azadirachta indica, a plant known for its multifarious medicinal properties...
October 26, 2016: Oncotarget
https://www.readbyqxmd.com/read/27833636/hydrogen-sulfide-a-signal-molecule-in-plant-cross-adaptation
#18
REVIEW
Zhong-Guang Li, Xiong Min, Zhi-Hao Zhou
For a long time, hydrogen sulfide (H2S) has been considered as merely a toxic by product of cell metabolism, but nowadays is emerging as a novel gaseous signal molecule, which participates in seed germination, plant growth and development, as well as the acquisition of stress tolerance including cross-adaptation in plants. Cross-adaptation, widely existing in nature, is the phenomenon in which plants expose to a moderate stress can induce the resistance to other stresses. The mechanism of cross-adaptation is involved in a complex signal network consisting of many second messengers such as Ca(2+), abscisic acid, hydrogen peroxide and nitric oxide, as well as their crosstalk...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27832458/proteomic-profiles-reveal-the-function-of-different-vegetative-tissues-of-moringa-oleifera
#19
Lei Wang, Qiong Zou, Jinxing Wang, Junjie Zhang, Zeping Liu, Xiaoyang Chen
Moringa oleifera is a rich source of bioactive compounds and is widely used in traditional medicine and food for its nutritional value; however, the protein and peptide components of different tissues are rarely discussed. Here, we describe the first investigation of M. oleifera proteomes using mass spectrometry and bioinformatics methods. We aimed to elucidate the protein profiles of M. oleifera leaves, stem, bark, and root. Totally 202 proteins were identified from four vegetative organs. We identified 101 proteins from leaves, 51 from stem, 94 from bark and 67 from root, finding that only five proteins existed in both four vegetative parts...
December 2016: Protein Journal
https://www.readbyqxmd.com/read/27832344/molecular-characterization-and-functional-analysis-of-the-ospsbr-gene-family-in-rice
#20
Lihua Li, Taozhi Ye, Xiaoling Gao, Rongjun Chen, Jinghong Xu, Chen Xie, Jianqing Zhu, Xiaojian Deng, Pingrong Wang, Zhengjun Xu
Low temperature may exert a negative impact on agronomical productivity. PsbR was known as the 10 kDa Photosystem II polypeptide. Although plant PsbR is thought to play important roles in photosynthesis, little is known about the contribution of plant PsbR to abiotic stress resistance. The expression patterns of three OsPsbR gene family members, OsPsbR1, OsPsbR2, and OsPsbR3, were characterized in rice 'Nipponbare'. Under normal condition, OsPsbR1 and OsPsbR3 showed tissue-specific expression, while the expression of OsPsbR2 could not be detected in all tested tissues...
November 10, 2016: Molecular Genetics and Genomics: MGG
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