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https://doi.org/10.1515/botcro-2015-0011

Physiological responses of peanut (Arachis hypogaea L.) cultivars to water deficit stress: status of oxidative stress and antioxidant enzyme activities

Koushik Chakraborty ; Directorate of Groundnut Research (ICAR), Junagadh – 362001, Gujarat, India
Amrit L. Singh ; Directorate of Groundnut Research (ICAR), Junagadh – 362001, Gujarat, India
Kuldeep A. Kalariya ; Directorate of Groundnut Research (ICAR), Junagadh – 362001, Gujarat, India
Nisha Goswami ; Directorate of Groundnut Research (ICAR), Junagadh – 362001, Gujarat, India

Puni tekst: engleski, pdf (2 MB) str. 123-142 preuzimanja: 832* citiraj
APA 6th Edition
Chakraborty, K., Singh, A.L., Kalariya, K.A. i Goswami, N. (2015). Physiological responses of peanut (Arachis hypogaea L.) cultivars to water deficit stress: status of oxidative stress and antioxidant enzyme activities. Acta Botanica Croatica, 74 (1), 123-142. https://doi.org/10.1515/botcro-2015-0011
MLA 8th Edition
Chakraborty, Koushik, et al. "Physiological responses of peanut (Arachis hypogaea L.) cultivars to water deficit stress: status of oxidative stress and antioxidant enzyme activities." Acta Botanica Croatica, vol. 74, br. 1, 2015, str. 123-142. https://doi.org/10.1515/botcro-2015-0011. Citirano 22.10.2021.
Chicago 17th Edition
Chakraborty, Koushik, Amrit L. Singh, Kuldeep A. Kalariya i Nisha Goswami. "Physiological responses of peanut (Arachis hypogaea L.) cultivars to water deficit stress: status of oxidative stress and antioxidant enzyme activities." Acta Botanica Croatica 74, br. 1 (2015): 123-142. https://doi.org/10.1515/botcro-2015-0011
Harvard
Chakraborty, K., et al. (2015). 'Physiological responses of peanut (Arachis hypogaea L.) cultivars to water deficit stress: status of oxidative stress and antioxidant enzyme activities', Acta Botanica Croatica, 74(1), str. 123-142. https://doi.org/10.1515/botcro-2015-0011
Vancouver
Chakraborty K, Singh AL, Kalariya KA, Goswami N. Physiological responses of peanut (Arachis hypogaea L.) cultivars to water deficit stress: status of oxidative stress and antioxidant enzyme activities. Acta Botanica Croatica [Internet]. 2015 [pristupljeno 22.10.2021.];74(1):123-142. https://doi.org/10.1515/botcro-2015-0011
IEEE
K. Chakraborty, A.L. Singh, K.A. Kalariya i N. Goswami, "Physiological responses of peanut (Arachis hypogaea L.) cultivars to water deficit stress: status of oxidative stress and antioxidant enzyme activities", Acta Botanica Croatica, vol.74, br. 1, str. 123-142, 2015. [Online]. https://doi.org/10.1515/botcro-2015-0011

Sažetak
From a field experiment, the changes in oxidative stress and antioxidant enzyme activities was studied in six Spanish peanut cultivars subjected to water deficit stress at two different stages viz. pegging and pod development stages. Imposition of water deficit stress significantly reduced relative water content, membrane stability and total carotenoid content in all the cultivars, whereas total chlorophyll content increased at initially and decreased at later stage. Chlorophyll a/b ratio increased under water deficit stress in most of the cultivars signifying greater damage to chlorophyll b rather than increase in chlorophyll a content. Oxidative stress measured in terms of H2O2 and superoxide radical content, and lipid peroxidation increased under water deficit stress, especially in susceptible cultivars viz. DRG 1, AK 159 and ICGV 86031. Relationship among different physiological parameters showed level of oxidative stress build-up was negatively correlated with activities of different antioxidant enzymes like superoxide dismutase, catalase, peroxidase, ascorbate peroxidase and glurathione reductase. The study concluded that in peanut water deficit stress at later stages of growth was more detrimental and an efficient antioxidant defense system manifested by higher activities of antioxidant enzymes was responsible for better stress tolerance in cultivars like ICGS 44 and TAG 24.

Ključne riječi
Antioxidant enzymes; lipid peroxidation; oxidative stress; peanut; reactive oxygen species

Hrčak ID: 137872

URI
https://hrcak.srce.hr/137872

Posjeta: 1.193 *