scholarly journals The Drought-Mediated Soybean GmNAC085 Functions as a Positive Regulator of Plant Response to Salinity

2021 ◽  
Vol 22 (16) ◽  
pp. 8986
Author(s):  
Xuan Lan Thi Hoang ◽  
Nguyen Nguyen Chuong ◽  
Tran Thi Khanh Hoa ◽  
Hieu Doan ◽  
Pham Hoang Phuong Van ◽  
...  
Keyword(s):  
Abiotic Stress ◽  
Defense Mechanisms ◽  
Stress Factors ◽  
In Planta ◽  
Ion Regulation ◽  
Plant Adaptation ◽  
Nac Transcription Factors ◽  
Molecular Alterations ◽  
Positive Regulator ◽  
Abiotic Stress Factors

Abiotic stress factors, such as drought and salinity, are known to negatively affect plant growth and development. To cope with these adverse conditions, plants have utilized certain defense mechanisms involved in various aspects, including morphological, biochemical and molecular alterations. Particularly, a great deal of evidence for the biological importance of the plant-specific NAM, ATAF1/2, CUC2 (NAC) transcription factors (TFs) in plant adaptation to abiotic stress conditions has been reported. A previous in planta study conducted by our research group demonstrated that soybean (Glycine max) GmNAC085 mediated drought resistance in transgenic Arabidopsis plants. In this study, further characterization of GmNAC085 function in association with salt stress was performed. The findings revealed that under this condition, transgenic soybean plants overexpressing GmNAC085 displayed better germination rates than wild-type plants. In addition, biochemical and transcriptional analyses showed that the transgenic plants acquired a better defense system against salinity-induced oxidative stress, with higher activities of antioxidant enzymes responsible for scavenging hydrogen peroxide or superoxide radicals. Higher transcript levels of several key stress-responsive genes involved in the proline biosynthetic pathway, sodium ion transporter and accumulation of dehydrins were also observed, indicating better osmoprotection and more efficient ion regulation capacity in the transgenic lines. Taken together, these findings and our previous report indicate that GmNAC085 may play a role as a positive regulator in plant adaptation to drought and salinity conditions.

scholarly journals Jute Responses and Tolerance to Abiotic Stress: Mechanisms and Approaches

Plants ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1595
Author(s):  
Khussboo Rahman ◽  
Naznin Ahmed ◽  
Md. Rakib Hossain Raihan ◽  
Farzana Nowroz ◽  
Faria Jannat ◽  
...  
Keyword(s):  
Abiotic Stress ◽  
Stress Responses ◽  
Growth Yield ◽  
Climatic Conditions ◽  
Stress Factors ◽  
Growth Physiology ◽  
Abiotic Stress Factors ◽  
Hot And Humid Climates ◽  
Adverse Environmental Conditions ◽  
Cold Metal

Jute (Corchorus spp.) belongs to the Malvaceae family, and there are two species of jute, C. capsularis and C. olitorious. It is the second-largest natural bast fiber in the world according to production, which has diverse uses not only as a fiber but also as multiple industrial materials. Because of climate change, plants experience various stressors such as salt, drought, heat, cold, metal/metalloid toxicity, and flooding. Although jute is particularly adapted to grow in hot and humid climates, it is grown under a wide variety of climatic conditions and is relatively tolerant to some environmental adversities. However, abiotic stress often restricts its growth, yield, and quality significantly. Abiotic stress negatively affects the metabolic activities, growth, physiology, and fiber yield of jute. One of the major consequences of abiotic stress on the jute plant is the generation of reactive oxygen species, which lead to oxidative stress that damages its cellular organelles and biomolecules. However, jute’s responses to abiotic stress mainly depend on the plant’s age and type and duration of stress. Therefore, understanding the abiotic stress responses and the tolerance mechanism would help plant biologists and agronomists in developing climate-smart jute varieties and suitable cultivation packages for adverse environmental conditions. In this review, we summarized the best possible recent literature on the plant abiotic stress factors and their influence on jute plants. We described the possible approaches for stress tolerance mechanisms based on the available literature.

Performance of plant growth-promoting bacterium of duckweed under different kinds of abiotic stress factors

2019 ◽  
Vol 19 ◽  
pp. 101146 ◽  
Author(s):  
Hidehiro Ishizawa ◽  
Minami Tada ◽  
Masashi Kuroda ◽  
Daisuke Inoue ◽  
Michihiko Ike
Keyword(s):  
Abiotic Stress ◽  
Plant Growth ◽  
Stress Factors ◽  
Abiotic Stress Factors ◽  
Plant Growth Promoting ◽  
Growth Promoting

Variability in Breeding Pool of Sugarcane (Saccharum spp.) for Yield, Quality and Resistance to Different Biotic and Abiotic Stress Factors

Sugar Tech ◽  
2014 ◽  
Vol 17 (2) ◽  
pp. 107-115
Author(s):  
A. Anna Durai ◽  
M. N. Premachandran ◽  
P. Govindaraj ◽  
P. Malathi ◽  
R. Viswanathan
Keyword(s):  
Abiotic Stress ◽  
Stress Factors ◽  
Biotic And Abiotic Stress ◽  
Saccharum Spp ◽  
Abiotic Stress Factors ◽  
Yield Quality ◽  
Breeding Pool

scholarly journals Transcription factor genes involved in plant response to abiotic stress factors

2019 ◽  
Vol 17 (3) ◽  
pp. 47-58
Author(s):  
Evgeniya A. Zaikina ◽  
Sergey D. Rumyantsev ◽  
Elena R. Sarvarova ◽  
Bulat R. Kuluev
Keyword(s):  
Heavy Metals ◽  
Transcription Factors ◽  
Abiotic Stress ◽  
Defense Mechanisms ◽  
Environmental Influence ◽  
Plant Response ◽  
Stress Factors ◽  
Cultivated Plants ◽  
Defense Proteins ◽  
Signal Perception

Hypothermia, drought, salinity and heavy metals are the most widespread stress factors negatively affecting plant growth and development. Plants respond to these stress factors on molecular, cellular, and physiological levels through the complicated mechanisms of signal perception and transduction, subsequently inducing various defense mechanisms. Transcription factors controlling the expression of numerous defense proteins are the most significant abiotic stress reaction regulators. Mainly, the negative environmental influence activates the AP2/ERF, WRKY, MYB, NAC, bZIP transcription factors. The numerous transcription factors genes can be used in genetic engineering of agricultural crops resistant to abiotic stress. These genes are also of great interest in marker assisted selection of cultivated plants. This review is dedicated to description of transcription factors and their genes, involved in plant response to hypothermia, drought, salinity and heavy metals.

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