Stress Inducible Overexpression of AtHDG11 Leads to Improved Drought and Salt Stress Tolerance in Peanut (Arachis hypogaea L.)

Banavath, Jayanna Naik; Chakradhar, Thammineni; Pandit, Varakumar; Konduru, Sravani; Guduru, Krishna Kumar; Akila, Chandra Sekhar; Podha, Sudhakar; Puli, Chandra Obul Reddy

doi:10.3389/fchem.2018.00034

Cited by 77 publications

(30 citation statements)

References 89 publications

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“…e leaf area is directly correlated with the International Journal of Agronomy photosynthetic rate [64]. ese results suggest that photosynthesis is a crucial component of the stress-tolerant mechanism in the date palm.…”

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confidence: 82%

Comparative Water Relations of Two Contrasting Date Palm Genotypes under Salinity

Kharusi

Sunkar

Al-Yahyai

et al. 2019

International Journal of Agronomy

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Salinity is a global agricultural problem, resulting in a significant reduction in the plantation areas and the crop yields, especially in arid and semiarid regions. The date palm is relatively salt-tolerant plant species, although the nature of salt tolerance is poorly understood. In this study, the salt stress responses of a salt-tolerant “Umsila” was compared with salt-susceptible “Zabad” date palm cultivars. Various physiological parameters, plant-water relations, and anatomical characteristics were analyzed. The results revealed that although salinity has negatively affected both cultivars, Umsila exhibited more stable photosynthesis than Zabad as reflected by the quantum yield (Qy) and the stomatal conductance (GS). Similarly, Umsila showed a more dynamic root system and efficient water relations than Zabad as demonstrated by the leaf water potential (LWP) and relative water content (RWC) during salinity. Umsila also accumulated greater abundances of soluble sugars, potassium (K+), calcium (Ca+2), proline, glycine betaine, and lignin and formed extra layers of Casparian strips in the root tissues when the seedlings were grown under saline conditions. Together, the results obtained from this study have offered some insights into the salt tolerance mechanisms in the date palm.

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confidence: 82%

Comparative Water Relations of Two Contrasting Date Palm Genotypes under Salinity

Kharusi

Sunkar

Al-Yahyai

et al. 2019

International Journal of Agronomy

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“…Recently, transgenic ground nut plants over‐expressing MuWRKY3 transcription factor conferred drought tolerance linked with better antioxidant capacity (Kiranmai et al., ). Similarly, transgenic peanut plants expressing an Arabidopsis TF ( AtHDG11 ) exhibited enhanced drought and salinity tolerance (Banavath et al., ). Still fewer genes or TFs have been targeted to develop transgenic peanut plants for optimum yield and this approach requires further investigation.…”

Section: Biotechnological Approaches For Improving Abiotic Stress Tolmentioning

confidence: 99%

Peanut (Arachis hypogaea L.): A Prospective Legume Crop to Offer Multiple Health Benefits Under Changing Climate

Akram

Shafiq

Ashraf

2018

Comp Rev Food Sci Food Safe

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Peanut is a multipurpose oil-seed legume, which offer benefits in many ways. Apart from the peanut plant's beneficial effects on soil quality, peanut seeds are nutritious and medicinally and economically important. In this review, insights into peanut origin and its domestication are provided. Peanut is rich in bioactive components, including phenolics, flavonoids, polyphenols, and resveratrol. In addition, the involvement of peanut in biological nitrogen fixation is highly significant. Recent reports regarding peanut responses and N 2 fixation ability in response to abiotic stresses, including drought, salinity, heat stress, and iron deficiency on calcareous soils, have been incorporated. As a biotechnological note, recent advances in the development of transgenic peanut plants are also highlighted. In this context, regulation of transcriptional factors and gene transfer for the development of stress-tolerant peanut genotypes are of prime importance. Above all, this review signifies the importance of peanut cultivation and human consumption in view of the scenario of changing world climate in order to maintain food security.

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“…It can maintain the stability of protein and cell membrane by assisting protein folding, assembly, translocation and degradation, and protect the normal growth of plants [69]. The HSP70 expression has been paid attention in plant response to abiotic stress, for instance drought [70,71] and salt [35,72]. However, its expression in plants response to potassium stress, was rarely mentioned.…”

Section: Discussionmentioning

confidence: 99%

Transcriptome Changes Induced by Different Potassium Levels in Banana Roots

Lin

et al. 2019

Plants

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Potassium plays an important role in enhancing plant resistance to biological and abiotic stresses and improving fruit quality. To study the effect of potassium nutrient levels on banana root growth and its regulation mechanism, four potassium concentrations were designed to treat banana roots from no potassium to high potassium. The results indicated that K2 (3 mmol/L K 2 SO 4 ) treatment was a relatively normal potassium concentration for the growth of banana root, and too high or too low potassium concentration was not conducive to the growth of banana root. By comparing the transcriptome data in each treatment in pairs, 4454 differentially expressed genes were obtained. There were obvious differences in gene function enrichment in root systems treated with different concentrations of potassium. Six significant expression profiles (profile 0, 1, 2, 7, 9 and 13) were identified by STEM analysis. The hub genes were FKF1, HsP70-1, NRT1/PTR5, CRY1, and ZIP11 in the profile 0; CYP51 in profile 1; SOS1 in profile 7; THA, LKR/SDH, MCC, C4H, CHI, F3 H, 2 PR1s, BSP, TLP, ICS, RO, chitinase and peroxidase in profile 9. Our results provide a comprehensive and systematic analysis of the gene regulation network in banana roots under different potassium stress.Plants 2020, 9, 11 2 of 24 area [18]. The lack of potassium had a significant effect on the growth of rapeseed, and the lack of potassium significantly inhibited the growth of taproots and lateral roots [19]. Potassium deficiency of tobacco decreased root growth and mainly affected the formation and elongation of primary lateral roots [20]. Low potassium not only significantly reduced the dry weight of cabbage root, but also reduced its leaf area [21]. Therefore, the morphological structure of root system was greatly affected by potassium stress. It is significant to study the response mechanism of root system under potassium stress. There has been extensive research on root structural changes in response to stress of nutrients such as phosphate and nitrate and the signaling pathways that mediate these changes [22], and practical breakthroughs have been made. However, the mechanism of root structural change and response to potassium stress is still unclear.With the purpose to explore the molecular mechanism of plant root response to potassium pressure, there are more and more reports on transcriptome, metabolome and proteomics of potassium stress (especially low potassium stress) in recent years. Transcriptome responses to K starvation in Arabidopsis thaliana [16], rice [4], soybean [23] and wild barley [24] indicated that genes related to ion transport, metabolism, signal transduction and protein phosphorylation significantly changed. Transcriptional analysis of sugarcane under low potassium stress showed significant differences in the expression of transcription factors, ion transporters, protein kinases and genes related to oxidative stress in the Ca 2+ signal and ethylene signal pathways [25]. The results of transcriptome of rice potassium deficient seedlings show...

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Stress Inducible Overexpression of AtHDG11 Leads to Improved Drought and Salt Stress Tolerance in Peanut (Arachis hypogaea L.)

Cited by 77 publications

References 89 publications

Comparative Water Relations of Two Contrasting Date Palm Genotypes under Salinity

Comparative Water Relations of Two Contrasting Date Palm Genotypes under Salinity

Peanut (Arachis hypogaea L.): A Prospective Legume Crop to Offer Multiple Health Benefits Under Changing Climate

Transcriptome Changes Induced by Different Potassium Levels in Banana Roots

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