scholarly journals tasiRNA-ARF Pathway Moderates Floral Architecture inArabidopsisPlants Subjected to Drought Stress

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Akihiro Matsui ◽  
Kayoko Mizunashi ◽  
Maho Tanaka ◽  
Eli Kaminuma ◽  
Anh Hai Nguyen ◽  
...  
Keyword(s):  
Drought Stress ◽  
Salinity Stress ◽  
Floral Development ◽  
High Salinity ◽  
Expression Profiles ◽  
Fine Tuning ◽  
Wild Type ◽  
Auxin Response ◽  
Sequencing Technology ◽  
High Salinity Stress

In plants, miRNAs and siRNAs, such as transacting siRNAs (ta-siRNAs), affect their targets through distinct regulatory mechanisms. In this study, the expression profiles of small RNAs (smRNAs) inArabidopsisplants subjected to drought, cold, and high-salinity stress were analyzed using 454 DNA sequencing technology. Expression of three groups of ta-siRNAs (TAS1, TAS2, and TAS3) and their precursors was downregulated inArabidopsisplants subjected to drought and high-salinity stress. Analysis of ta-siRNA synthesis mutants and mutatedARF3-overexpressing plants that escape the tasiRNA-ARF target indicated that self-pollination was hampered by short stamens in plants under drought and high-salinity stress. Microarray analysis of flower buds ofrdr6and wild-type plants under drought stress and nonstressed conditions revealed that expression of floral development- and auxin response-related genes was affected by drought stress and by theRDR6mutation. The overall results of the present study indicated that tasiRNA-ARF is involved in maintaining the normal morphogenesis of flowers in plants under stress conditions through fine-tuning expression changes of floral development-related and auxin response-related genes.

Application of high-salinity stress for enhancing the lipid productivity of Chlorella sorokiniana HS1 in a two-phase process

2018 ◽  
Vol 56 (1) ◽  
pp. 56-64 ◽  
Author(s):  
Ramesh Kakarla ◽  
Jung-Woon Choi ◽  
Jin-Ho Yun ◽  
Byung-Hyuk Kim ◽  
Jina Heo ◽  
...  
Keyword(s):  
Salinity Stress ◽  
High Salinity ◽  
Chlorella Sorokiniana ◽  
Lipid Productivity ◽  
Two Phase ◽  
High Salinity Stress ◽  
Phase Process

scholarly journals Analysis of differential gene expression in Litopenaeus vannamei under High salinity stress

2020 ◽  
Vol 18 ◽  
pp. 100423
Author(s):  
Chao Li ◽  
Na Li ◽  
Tiantian Dong ◽  
Qiang Fu ◽  
Yanting Cui ◽  
...  
Keyword(s):  
Gene Expression ◽  
Differential Gene Expression ◽  
Salinity Stress ◽  
Litopenaeus Vannamei ◽  
High Salinity ◽  
High Salinity Stress ◽  
Differential Gene

scholarly journals Ppd-H1 integrates drought stress signals to control spike development and flowering time in barley

2020 ◽  
Author(s):  
Leonard Gol ◽  
Einar B Haraldsson ◽  
Maria von Korff
Keyword(s):  
Drought Stress ◽  
Developmental Plasticity ◽  
Floral Development ◽  
Spring Barley ◽  
Introgression Lines ◽  
Photoperiod Response ◽  
Severe Drought ◽  
Wild Type ◽  
Spike Development ◽  
Stress Signals

Abstract Drought impairs growth and spike development, and is therefore a major cause of yield losses in the temperate cereals barley and wheat. Here, we show that the photoperiod response gene PHOTOPERIOD-H1 (Ppd-H1) interacts with drought stress signals to modulate spike development. We tested the effects of a continuous mild and a transient severe drought stress on developmental timing and spike development in spring barley cultivars with a natural mutation in ppd-H1 and derived introgression lines carrying the wild-type Ppd-H1 allele from wild barley. Mild drought reduced the spikelet number and delayed floral development in spring cultivars but not in the introgression lines with a wild-type Ppd-H1 allele. Similarly, drought-triggered reductions in plant height, and tiller and spike number were more pronounced in the parental lines compared with the introgression lines. Transient severe stress halted growth and floral development; upon rewatering, introgression lines, but not the spring cultivars, accelerated development so that control and stressed plants flowered almost simultaneously. These genetic differences in development were correlated with a differential down-regulation of the flowering promotors FLOWERING LOCUS T1 and the BARLEY MADS-box genes BM3 and BM8. Our findings therefore demonstrate that Ppd-H1 affects developmental plasticity in response to drought in barley.

Enhancement of carotenoid and bacteriochlorophyll by high salinity stress in photosynthetic bacteria

2017 ◽  
Vol 121 ◽  
pp. 91-96 ◽  
Author(s):  
Hangyao Wang ◽  
Anqi Yang ◽  
Guangming Zhang ◽  
Boyuan Ma ◽  
Fan Meng ◽  
...  
Keyword(s):  
Salinity Stress ◽  
Photosynthetic Bacteria ◽  
High Salinity ◽  
High Salinity Stress
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