Potassium and melatonin regulated— fructose-1,6-bisphosphatase (FBPase) and sedoheptulose-1,7- bisphosphatase (SBPase) activity improve photosynthetic efficiency, carbon assimilation and modulate glyoxylase system and tolerance to cadmium stress in tomato seedlings

2021 ◽  
Author(s):  
Manzer H. Siddiqui ◽  
Soumya Mukherjee ◽  
Ritesh Kumar ◽  
Saleh Alansi ◽  
Anis Ali Shah ◽  
...  
Keyword(s):  
Photosynthetic Efficiency ◽  
Carbon Assimilation ◽  
Cadmium Stress ◽  
Tomato Seedlings ◽  
Fructose 1,6 Bisphosphatase ◽  
Tolerance To Cadmium

scholarly journals Photosynthetic efficiency and production of cowpea cultivars under deficit irrigation

2018 ◽  
Vol 13 (5) ◽  
pp. 1 ◽  
Author(s):  
Alberto Soares de Melo ◽  
Allisson Rafael Ferreira da Silva ◽  
Alexson Filgueiras Dutra ◽  
Wellison Filgueiras Dutra ◽  
Marcos Eric Barbosa Brito ◽  
...  
Keyword(s):  
Water Deficit ◽  
Deficit Irrigation ◽  
Photosynthetic Efficiency ◽  
Arid Regions ◽  
Carbon Fixation ◽  
Management Strategies ◽  
Carbon Assimilation ◽  
Green Beans ◽  
Gas Exchanges ◽  
Cowpea Cultivars

Cowpea is a crop with great economic, social and food importance in semi-arid regions, but its production is drastically reduced by the water deficit in these regions, requiring better management strategies that allow the crop’s production. This study therefore aimed to evaluate the photosynthetic efficiency and production of cowpea cultivars under deficit irrigation replacement levels. The experiment tested three cowpea genotypes (G1 = ‘BRS Aracé’, G2 = ‘BR 17 Gurguéia’ and G3 = ‘BRS Marataoã’) and four irrigation depths (40, 60, 80 and 100% of ETc), resulting in a 3 x 4 factorial scheme, arranged in randomized complete blocks design with four replicates. During the experiment, the gas exchanges, chlorophyll a fluorescence and production of the cowpea genotypes under deficit irrigation were evaluated. Carbon fixation in the photosynthetic metabolism of cowpea plants was reduced by accentuated water deficit, regardless of the genotype. The low stress severity was indicated by the lack of effects on chlorophyll fluorescence, indicating that the reduction in the rate of carbon assimilation was due to the stomatal effects. The irrigation with 80% of ETc can be used in the cultivation of the respective cultivars, but with small losses in the production. Among the genotypes, ‘BRS Marataoã’ stands out with respect to yield, with higher values for weight of pods and green beans.

scholarly journals Alternative Pathway is Involved in Nitric Oxide-Enhanced Tolerance to Cadmium Stress in Barley Roots

Plants ◽  
2019 ◽  
Vol 8 (12) ◽  
pp. 557 ◽  
Author(s):  
Li He ◽  
Xiaomin Wang ◽  
Ruijun Feng ◽  
Qiang He ◽  
Shengwang Wang ◽  
...  
Keyword(s):  
Stress Tolerance ◽  
Alternative Pathway ◽  
Cadmium Stress ◽  
Cd Stress ◽  
No Donor ◽  
Ros Accumulation ◽  
Mda Content ◽  
Scavenging Enzymes ◽  
Tolerance To Cadmium

Alternative pathway (AP) has been widely accepted to be involved in enhancing tolerance to various environmental stresses. In this study, the role of AP in response to cadmium (Cd) stress in two barley varieties, highland barley (Kunlun14) and barley (Ganpi6), was investigated. Results showed that the malondialdehyde (MDA) content and electrolyte leakage (EL) level under Cd stress increased in two barley varieties. The expressions of alternative oxidase (AOX) genes (mainly AOX1a), AP capacity (Valt), and AOX protein amount were clearly induced more in Kunlun14 under Cd stress, and these parameters were further enhanced by applying sodium nitroprussid (SNP, a NO donor). Moreover, H2O2 and O2− contents were raised in the Cd-treated roots of two barley varieties, but they were markedly relieved by exogenous SNP. However, this mitigating effect was aggravated by salicylhydroxamic acid (SHAM, an AOX inhibitor), suggesting that AP contributes to NO-enhanced Cd stress tolerance. Further study demonstrated that the effect of SHAM application on reactive oxygen species (ROS)-related scavenging enzymes and antioxidants was minimal. These observations showed that AP exerts an indispensable function in NO-enhanced Cd stress tolerance in two barley varieties. AP was mainly responsible for regulating the ROS accumulation to maintain the homeostasis of redox state.

bHLH104 confers tolerance to cadmium stress in Arabidopsis thaliana

2018 ◽  
Vol 60 (8) ◽  
pp. 691-702 ◽  
Author(s):  
Xiani Yao ◽  
Yuerong Cai ◽  
Diqiu Yu ◽  
Gang Liang
Keyword(s):  
Arabidopsis Thaliana ◽  
Cadmium Stress ◽  
Tolerance To Cadmium

Consequences of inbreeding and reduced genetic variation on tolerance to cadmium stress in the midge Chironomus riparius

2007 ◽  
Vol 85 (4) ◽  
pp. 278-284 ◽  
Author(s):  
Carsten Nowak ◽  
Daniel Jost ◽  
Christian Vogt ◽  
Matthias Oetken ◽  
Klaus Schwenk ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Cadmium Stress ◽  
Chironomus Riparius ◽  
Tolerance To Cadmium

scholarly journals A cadmium stress-responsive gene AtFC1 confers plant tolerance to cadmium toxicity

2017 ◽  
Vol 17 (1) ◽  
Author(s):  
Jun Song ◽  
Sheng Jun Feng ◽  
Jian Chen ◽  
Wen Ting Zhao ◽  
Zhi Min Yang
Keyword(s):  
Cadmium Toxicity ◽  
Cadmium Stress ◽  
Plant Tolerance ◽  
Responsive Gene ◽  
Tolerance To Cadmium

scholarly journals Effect of Salicylic Acid on the Growth, Photosynthetic Efficiency and Enzyme Activities of Leguminous Plant under Cadmium Stress

2014 ◽  
Vol 42 (2) ◽  
pp. 440-445 ◽  
Author(s):  
Mohammed Naseer ALYEMENI ◽  
Qaiser HAYAT ◽  
Leonard WIJAYA ◽  
Shamsul HAYAT
Keyword(s):  
Superoxide Dismutase ◽  
Salicylic Acid ◽  
Antioxidative Enzymes ◽  
Enzyme Activities ◽  
Photosynthetic Efficiency ◽  
Cadmium Stress ◽  
Leguminous Plant ◽  
Exogenous Application ◽  
Catalase Peroxidase ◽  
Cd Exposure

The present study was designed with an objective to elucidate the effect of the exogenous application of 10-5 M of salicylic acid (SA) to the foliage of the chickpea plants exposed to 0, 25, 50 or 100 mg cadmium (Cd) per kg of soil. The foliage of the plants grown in soil amended with varying doses of Cd was sprayed with 10-5 M of SA at 30 days after sowing (DAS). The plant samples were collected at 60 and 90 DAS to assess various parameters. The damage caused due to the Cd exposure was partially overcome by the exogenous application of SA. The SA treatment resulted in a significant increase of growth, photosynthesis, yield and the activity of antioxidative enzymes viz. catalase, peroxidase and superoxide dismutase in the plants exposed to 0, 25 or 50 mg Cd per kg of soil. However, the treatment did not prove to be fruitful in alleviating completely the stress generated by 100 mg Cd per kg of soil.

scholarly journals Overexpression ofArabidopsis thaliana tryptophan synthase beta1 (AtTSB1) inArabidopsisand tomato confers tolerance to cadmium stress

2008 ◽  
Vol 31 (8) ◽  
pp. 1074-1085 ◽  
Author(s):  
SANJAYA ◽  
PAO-YUAN HSIAO ◽  
RUEY-CHIH SU ◽  
SWEE-SUAK KO ◽  
CHII-GONG TONG ◽  
...  
Keyword(s):  
Cadmium Stress ◽  
Tryptophan Synthase ◽  
Ofarabidopsis Thaliana ◽  
Tolerance To Cadmium

Melatonin mediates selenium-induced tolerance to cadmium stress in tomato plants

2016 ◽  
Vol 61 (3) ◽  
pp. 291-302 ◽  
Author(s):  
Meng-Qi Li ◽  
Md. Kamrul Hasan ◽  
Cai-Xia Li ◽  
Golam Jalal Ahammed ◽  
Xiao-Jian Xia ◽  
...  
Keyword(s):  
Cadmium Stress ◽  
Tomato Plants ◽  
Induced Tolerance ◽  
Tolerance To Cadmium
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