scholarly journals OsSAPK2 Confers Abscisic Acid Sensitivity and Tolerance to Drought Stress in Rice

2017 ◽  
Vol 8 ◽  
Author(s):  
Dengji Lou ◽  
Houping Wang ◽  
Gang Liang ◽  
Diqiu Yu
Keyword(s):  
Abscisic Acid ◽  
Drought Stress ◽  
Acid Sensitivity

scholarly journals Increased Abscisic Acid Sensitivity And Drought Stress By Overexpression of Abscisic Acid Receptors In Arabidopsis Thaliana

2021 ◽  
Author(s):  
Li Qing ◽  
Tian Qianqian ◽  
Zhang Yue ◽  
Niu Mengxue ◽  
Yu Xiaoqian ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Drought Stress ◽  
Stress Responses ◽  
Populus Euphratica ◽  
Wild Type ◽  
Positive Role ◽  
Acid Sensitivity ◽  
Cis Acting ◽  
Aba Sensitivity ◽  
Use Efficiency

Abstract Abscisic acid (ABA) is a key plant hormone that regulates plant growth development and stress response. ABA is recognized and bound by ABA Receptor PYR/PYL/RCAR (referred to as PYLs). However, little is known about the PYLs gene family in Populus euphratica. Here, we identified 12 PYLs in P. euphratica and named PePYL1-12. Phylogenetic analysis divided the 12 PePYLs into three subfamilies. Subcellular localization showed that PePYL2, PePYL4, PePYL5, PePYL6, and PePYL9 were located in the cytoplasm and nucleus, PePYL10 localized in the nucleus. The promoter of 12 PePYLs contains hormones- and abiotic stress-related cis-acting elements. Moreover, ABA and drought significantly up-regulation the expression of PePYL6 and PePYL9. To study the performance of PePYLs under ABA and drought stress, we generated transgenic Arabidopsis plants overexpressing PePYL6 and PePYL9. Compared with wild type, transgenic Arabidopsis enhanced ABA sensitivity during seed germination and root growth, improved water use efficiency and drought resistance. Taken together, our results confirmed that PePYL6 and PePYL9 play a positive role in ABA-mediated stress responses in P. euphratica.

Stress-responsive tomato gene SlGRAS4 function in drought stress and abscisic acid signaling

Plant Science ◽  
2021 ◽  
Vol 304 ◽  
pp. 110804
Author(s):  
Yudong Liu ◽  
Ling Wen ◽  
Yuan Shi ◽  
Deding Su ◽  
Wang Lu ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Drought Stress ◽  
Abscisic Acid Signaling ◽  
Tomato Gene

scholarly journals Accumulation of Silicon and Changes in Water Balance under Drought Stress in Brassica napus var. napus L.

Plants ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 280
Author(s):  
Diana Saja-Garbarz ◽  
Agnieszka Ostrowska ◽  
Katarzyna Kaczanowska ◽  
Franciszek Janowiak
Keyword(s):  
Abscisic Acid ◽  
Drought Stress ◽  
Stomatal Conductance ◽  
Water Balance ◽  
Water Content ◽  
Oilseed Rape ◽  
Potential Evapotranspiration ◽  
Leaf Water Content ◽  
Optimal Conditions ◽  
Abscisic Acid Level

The aim of this study was to investigate the accumulation of silicon in oilseed rape and to characterize the changes in chosen water balance parameters in response to drought. The following parameters were estimated: water content, osmotic and water potential, evapotranspiration, stomatal conductance and abscisic acid level under optimal and drought conditions. It was shown that oilseed rape plants accumulate silicon after its supplementation to the soil, both in the case of silicon alone and silicon together with iron. It was revealed that silicon (without iron) helps maintain constant water content under optimal conditions. While no silicon influence on osmotic regulation was observed, a transpiration decrease was detected under optimal conditions after silicon application. Under drought, a reduction in stomatal conductance was observed, but it was similar for all plants. The decrease in leaf water content under drought was accompanied by a significant increase in abscisic acid content in leaves of control plants and those treated with silicon together with iron. To sum up, under certain conditions, silicon is accumulated even in non-accumulator species, such as oilseed rape, and presumably improves water uptake under drought stress.

Overexpression of GmSUMO2 gene confers increased abscisic acid sensitivity in transgenic soybean hairy roots

2020 ◽  
Vol 47 (5) ◽  
pp. 3475-3484
Author(s):  
Jingsong Guo ◽  
Sibo Wang ◽  
Guixin Wang ◽  
Runfeng Lu ◽  
Yuxin Wang ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Hairy Roots ◽  
Transgenic Soybean ◽  
Acid Sensitivity

Foliar Application of Abscisic Acid and Sulfonamide Compounds Induced Drought Tolerance in Watermelon

2015 ◽  
Vol 723 ◽  
pp. 705-710
Author(s):  
Wei Shun Cheng ◽  
Dan Li Zeng ◽  
Na Zhang ◽  
Hong Xia Zeng ◽  
Xian Feng Shi ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Drought Stress ◽  
Drought Tolerance ◽  
Ascorbate Peroxidase ◽  
Glycine Betaine ◽  
Foliar Application ◽  
Citrullus Lanatus ◽  
Recovery Phase ◽  
Daily Application

The effects of exogenous abscisic acid and two sulfonamide compounds: Sulfacetamide and Sulfasalazine were studied on tolerance of watermelon [Citrullus lanatus (Thunb.) Matsum. & Nakai var. lanatus] under drought stress and compared with abscisic acid effects. Eight-week old plants were treated with ABA (10 and 25 mg/L), Sulfacetamide (25, 50 and 100 mg/L) and Sulfasalazine (25,50 and 100 mg/L). Solutions were sprayed daily and sampling was done at 0 h, 48 h, 96 h, 144 h and 48 h after re-watering (recovery phase or 192 h). Treated plants showed relatively greater drought tolerance. This indicates that, Sulfacetamide and Sulfasalazine may improve resistance in watermelon, like ABA, increasing levels of proline, glycine betaine and malondialdehyde and the activity of ascorbate peroxidase. Daily application of Sulfasalazine and Sulfacetamide during drought stress period was effective in increasing watermelon plants tolerance to drought as was ABA.

scholarly journals A Central Role of Abscisic Acid in Drought Stress Protection of Agrobacterium-Induced Tumors on Arabidopsis

2007 ◽  
Vol 145 (3) ◽  
pp. 853-862 ◽  
Author(s):  
Marina Efetova ◽  
Jürgen Zeier ◽  
Markus Riederer ◽  
Chil-Woo Lee ◽  
Nadja Stingl ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Drought Stress ◽  
Stress Protection ◽  
Induced Tumors

Molecular and physiological responses of Iranian Perennial ryegrass as affected by Trinexapac ethyl, Paclobutrazol and Abscisic acid under drought stress

2017 ◽  
Vol 111 ◽  
pp. 129-143 ◽  
Author(s):  
Mohammad Hossein Sheikh Mohammadi ◽  
Nematollah Etemadi ◽  
Mohammad Mehdi Arab ◽  
Mostafa Aalifar ◽  
Mostafa Arab ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Drought Stress ◽  
Perennial Ryegrass ◽  
Physiological Responses

scholarly journals AtMybL-O modulates abscisic acid biosynthesis to optimize plant growth and ABA signaling in response to drought stress

2018 ◽  
Vol 61 (4) ◽  
pp. 473-477 ◽  
Author(s):  
Chan Young Jeong ◽  
Won Je Lee ◽  
Hai An Truong ◽  
Cao Sơn Trịnh ◽  
Suk-Whan Hong ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Drought Stress ◽  
Plant Growth ◽  
Aba Signaling ◽  
Acid Biosynthesis ◽  
Abscisic Acid Biosynthesis
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