Yazar "Faizan, Mohammad" seçeneğine göre listele

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    Annexins: A family of calcium binding proteins with variety of roles in plant development and abiotic stress tolerance
    (Elsevier, 2024) Faizan, Mohammad; Ashoka, Hadagali; Karabulut, Fadime; Alam, Pravej; Ahmed, S. Maqbool; Khan, Ira; Soysal, Sipan
    Plant annexins are a multigene family of phospholipid-binding, calcium-dependent proteins that respond to signals and environmental challenges as plants grow and develop. Plant annexins are functionally unique due to their ATPase/GTPase, peroxidase, and calcium (Ca2+) channel-regulating activities. They play a major role in controlling many different aspects of cellular and metabolic functions, plant growth and development, and reactions to both biotic and abiotic environmental stimuli. In this review, we provide an overview of how intracellular and extracellular annexins work, mechanism of reactive oxygen species (ROS) and annexins, highlight recent developments of the roles of annexins in abiotic stress tolerance in plants, and emphasize the role of annexins in plant growth and development.
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    Karrikins biosynthesis, signaling route, regulatory roles, and hormonal crosstalk in plant soil system
    (Natl Information Documentation Cent, Acad Scientific Research & Technology, 2024) Faizan, Mohammad; Rajput, Khushboo; Patyal, Urvasha; Kaur, Manpreet; Sanchan, Rohan Kumar; Alam, Pravej; Maruthi, Katenahalli Rudrappa
    Modern agriculture will face new obstacles, such as the increased frequency of forest and grassland fire outbreaks brought on by climate change, which will call for creative solutions. The chemicals known as karrikins are present in smoke produced by burning plant matter. Several additional known functions, including seed germination and other photo-morphogenetic processes, are linked to them. Nowadays, it is becoming clearer how KARs can improve plant performance in a variety of ecological limits. KARs not only regulate antioxidative metabolism (SOD, POX, GR, APX) but also up-regulate the expression of several stress-related genes in plants to reduce oxidative stress in plants brought on by biotic and abiotic factors. Plants have an intricate tolerance mechanism that includes stomatal pore management, systemic communication, redox equilibrium maintenance, and other functions to cope with abiotic stressors. In Arabidopsis thaliana, Karrikins signaling is mediated by the F-box protein MAX2, which also controls responses to the structurally related strigolactone family of phytohormones. This review paper goes into great detail about the discovery, biosynthesis, and signaling mechanism of karrikins as well as their interactions with other phytohormones and future prospects.
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    Response of maize (Zea mays L.) on yield, physiology and stomatal behaviour under two different elevated CO2 concentrations. Do these anatomical changes affect the physiology of the C4 crop plant under high CO2 conditions?
    (Czech Academy Agricultural Sciences, 2024) Khan, Ira; Vanaja, Maddi; Sathish, Poldasari; Faizan, Mohammad; Soysal, Sipan; Rajput, Vishnu D.; Djalovic, Ivica
    Rising CO2 concentration in the atmosphere is a matter of global concern and poses apprehension about how plants will adapt to the changing environment. Various studies have proved that under high CO2 levels, plant physiology alters and affects plant functioning. However, under elevated CO2, the stomatal characters and their relation with physiological responses are still not yet clear. To find out these changes in the stomatal parameters at ambient and two elevated CO2 (550 ppm and 700 ppm) levels, four genotypes of maize (Zea mays L.) viz. DHM-117, Harsha, Varun and M-24 were grown in open-top chambers. In the study, it was observed that the stomatal density increased, stomatal size altered, stomatal conductance (gs) and transpiration rate (Tr) decreased under elevated CO2 (eCO2) while photosynthetic rate (Pn), water use efficiency (WUE), yield and biomass, of which especially the reproductive biomass increased. Under eCO2, stomatal and physiological changes were genotypic and CO2 concentration specific. Increased stomatal density at eCO2 was mainly due to increased abaxial stomatal density. The improved Pn and reduced Tr at 550 ppm improved the WUE in the plants, while this response was not observed at 700 ppm. These results elucidate that this C4 crop responded positively to up to 550 ppm of CO2 concentrations, and beyond this, the impact was minimal.
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    Synergistic application of melatonin and silicon oxide nanoparticles modulates reactive oxygen species generation and the antioxidant defense system: a strategy for cadmium tolerance in rice
    (Frontiers Media Sa, 2024) Faisal, Mohammad; Faizan, Mohammad; Soysal, Sipan; Alatar, Abdulrahman A.
    Unfavorable environmental conditions pose a major barrier to sustainable agriculture. Among the various innovative strategies developed to protect plants from abiotic stress, the use of phytohormones and nanoparticles as stress mitigators has emerged as one of the most important and promising approaches. The objective of this study was to observe the protective role of melatonin (Mel) and silicon oxide nanoparticles (SiO-NPs) in rice (Oryza sativa L.) seedlings under cadmium (Cd) stress. Rice seedlings have reduced growth and phytochemical attributes when grown in Cd-contaminated (0.8 mM) pots. Seedlings under Cd stress had 38% less shoot length (SL), 53% total soluble sugar (TSS) and 57% protein content. However, superoxide dismutase (SOD), hydrogen peroxide (H2O2) and malondialdehyde (MDA) increased by 51%, 37% and 34%, respectively, under Cd stress. Beside this, activities such as peroxidase (POX) also elevated in the plants subjected with Cd-stress. In contrast, Mel (100 mu m) as foliar spray and SiO-NPs (100 mg/L) as root dipping reduced oxidative stress in rice seedlings under Cd stress by reducing reactive oxygen species (ROS) generation. Furthermore, the application of Mel and/or SiO-NPs significantly increased the activity of antioxidative enzymes that scavenge ROS. The combined application of SiO-NPs and Mel increased growth, gas exchange and photosynthetic attributes, chlorophyll value, and protein content. It causes alleviation in the activity of SOD, CAT and POX by 73%, 62% and 65%, respectively. Overall, this study findings show that Mel and/or SiO-NPs can potentially protect the rice crop against oxidative damage under Cd stress.
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    Unraveling the nano-biochar mediated regulation of heavy metal stress tolerance for sustaining plant health
    (Elsevier B.V., 2024) Faizan, Mohammad; Alam, Pravej; Kumari, Asha; Suresh, Gali; Sharma, Priyanka; Karabulut, Fadime; Soysal, Sipan
    Heavy metal (HM) toxicity of agricultural soils poses a major risk to plant health, human life, and global food chain. Crop output and health are negatively impacted when HM levels in agricultural soils reach hazardous points. The nano-biochar (nano-BC) mediated stress tolerance has attracted growing scientific interest because biochar has the potential to be a novel and sustainable solution that may be actively included into the development of sustainable agriculture and food production. At present, biochar is extensively employed as a powerful tool to enhance sustainable agriculture with minimal impact on ecosystems and the environment. Nano-BC offers improved surface area, adsorption and mobility properties in soil compared to traditional fertilizers. Furthermore, nano-BC may prove to be the most practical substitute for traditional waste management techniques because of its affordability, sustainability, and environmental friendliness. In this review, we examine the application of nano-BC in the regulation of HM stress tolerance for improving plant growth and development. We focus on the impact of HMs impact on crop productivity, nano-BC amendments, their application, and production. The article also explores the nano-BC risk and toxicity. Through the perspective of multidisciplinary research, this work highlights the significance of nano-BC as cutting-edge tools in the field of agriculture, igniting a paradigm shift toward sustainable and stress-resilient farming systems. © 2024 The Author(s)