Tìm thấy 20+ kết quả cho từ khóa "Drought tolerance"
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This requires improved understanding of the association of a miRNA with stress-tolerance and/or GDP.. Recently, attentions have been focused on the importance of posttranscriptional regulation by miRNAs in drought tolerance (DT) due to their central roles in the regulatory network [7, 38].
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associated with drought tolerance in sweet orange as revealed by RNA-Seq. The objective of this study was to investigate the poorly understood molecular responses underlying the rootstock-induced drought tolerance in sweet orange.. Results: RNA-Seq transcriptome analysis was carried out in leaves of sweet orange grafted on ‘ Rangpur ’ lime subjected to control and drought-stress treatments, under greenhouse conditions, using the Illumina HiSeq platform.
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Gene Ontology (GO) and reduce and visualize GO (REVIGO) enrichment analysis showed that upregulated genes of Z141 were enriched in more functional pathways related to plant drought tolerance than those of NY-17 were under DS. Conclusions: The drought tolerance of Z141 may be related to its upregulation of drought tolerance genes under DS.
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It is therefore the improvement of drought tolerance by manipulating on a single gene has limited success in the field, although many drought- tolerant genes have been reported to have significant ef- fects in the laboratory or small-scale field conditions. Many comparative transcriptomic studies on rice drought toler- ance have been published in the last decade, contributing a lot in our understandings of drought tolerance at the systematic level .
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SbER2–1 confers drought tolerance in Arabidopsis and maize. Under drought conditions, SbER1 and SbER2 were inducible and the expression levels of the two genes increased gradually with the severity of drought stress. Evaluation of the six sorghum varieties showed that drought tolerance increased with the level of SbER2 expression, indicating that SbER2 expression is closely associated with the drought stress response in sorghum.
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Physiological and biochemical studies on drought tolerance of wheat plants by biostimulants application 137. Water stress. Natural substances have a better effect of drought stress on RWC and alleviated the depressive effect of drought by improving OP and MI status.. Enzyme activities were decreased in response to water stress and maximum decrease was noted in severe stress..
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Our results provide a valuable resource for functional dissection of the molecular mechanisms of drought tolerance.. Conclusions: Many of the target genes, including transmembrane/transporter, vesicle related, auxin/hormone related, carbohydrate metabolic processes, and transcription factor genes, that are up-regulated by OsNACs act as the cellular components which would alter the root architectures of RCc3:OsNAC s for drought tolerance..
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TaWRKY40 transcription factor positively regulate the expression of TaGAPC1 to enhance drought tolerance. Backgrounds: Drought stress is one of the major factors that affects wheat yield. We found that the overexpression of TaGAPC1 could enhance the tolerance to drought stress in transgenic Arabidopsis. Yeast one- hybrid library screening and EMSA showed that TaWRKY40 acts as a direct regulator of the TaGAPC1 gene.
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Overexpression of TaSIM provides increased drought stress tolerance in transgenic Arabidopsis. His2 zinc-finger transcription factor ZAT18 is a positive regulator of plant tolerance to drought stress. Salt and drought stress signal transduction in plants. GsZFP1, a new Cys 2 /His 2 -type zinc-finger protein, is a positive regulator of plant tolerance to cold and drought stress
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Conclusion: Tetraploidy potentiates tolerance to drought stress in cassava, and LNC_001148 and LNC_000160 mediate drought tolerance by regulating stomatal density in autotetraploid cassava.. Drought stress increases oxidative damage in plants [3]. Transcriptome analyses have confirmed subtle changes due to autopolyploidy in Arabidopsis and Paulownia tomentosa × Paulownia fortunei under drought stress [13, 14].
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Study on the drought tolerance ability of maize cultivars:. We assessed the drought tolerance ability of maize cultivars at the plantlet stage by factitious drought treatment. The results showed the difference of the drought tolerance ability (table 4).. The dryness index in maize cultivars were from 10715.40 to 33763.98 and was highest drought tolerance ability in HL cultivar.. The dissimilar coefficients of response of 8 maize cultivars were determined by NTSYSpc- 2.02i program.
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Using drought tolerance indices (Stress tolerance index and geometric mean productivity), high yielding mutant lines under drought stress were selected. Across all these three-mutant generations, mutant lines NN1-M-363, NN1-M-506, NN1-M-700, NN1-M-701, and NN1-M-1621 showed significant improvement as compared to wild type in response to stress conditions.. final selection of genotypes having desired traits (Ghafoor et al., 2013)..
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Anjum [18] reported that exogenous FA conferred drought tolerance to maize under drought stress by promoting proline contents. Regrettably, although these data were valuable for exploring the effects of FA under drought stress, no information had yet been provided on regulatory mechanisms in these studies. It is noteworthy whether the FA could modulate the drought tolerance of tea plants during drought stress..
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This study was carried out to determine the potential of morphological and physiological traits for drought tolerance in terms of heritability, genetic advance and type of gene action prevailing in wheat using six generation model i.e. P 1 , P 2 , F 1 , F 2 , Bc 1 , and Bc 2 in two wheat crosses.
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This indicates that on exposure to drought stress a large number of ROS were produced and pearl millet immediately showed responses due to high drought resistance capability. In our research, 12 genes exhibited up-regulation at all three time points, which could illustrate that they play some important roles in response to drought stress. For example, overexpression PdC3H17 could confer tolerance to drought stress in Populus L. In the.
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Drought affects more than 70% of arable lands around the world, and the drought stress-related yield loss has gained considerable attention in recent years as agricultural activities have been extended to less fertile or infertile fields to meet the growing food demand. As a result, the enhancement of the drought tolerance in crops,.
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DEG that are (a) increased and (b) decreased in drought-stressed SPL13RNAi plants. The funding agencies had no role in the design of the study;. MicroRNA156 improves drought stress tolerance in alfalfa (Medicago sativa) by silencing SPL13. Transcriptome analysis of microRNA156 overexpression alfalfa roots under drought stress. Interpreting leaf water potential measurements with a model of the soil-plant-atmosphere continuum..
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From these lists, 156 of the strongest candidate genes were selected as the entries closest to the peak GWAS SNPs with domains plausibly involved in drought tolerance and/or biomass accumula- tion (Additional file 10).
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The performance of T1, T2, and T3 genotypes against drought stress were evaluated to determine whether the BADH expression enhances drought tolerance of white clover. After drought stress, the BADH transcript levels in T1, T2, and T3 genotypes significantly increased (Figure 4a). Moreover, after the drought stress, GB contents of the leaves of T1, T2, and T3 genotypes significantly increased, compared to nonstress conditions.
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In the last decade, great progress has been acomplished in the plant drought tolerance, with new findings and the rapid development of many new techniques and methodologies (Luo et al., 2019).. YILDIRIM et al. Moreover, under stress conditions, the synthesis of reactive oxygen species and free radicals increase in the plant, causing oxidative stress in the cell (Tsugane et al., 1999). Perezperez et al., 2012. Zhou et al., 2013. Li et al., 2016. Shangguan et al., 2018).