Assessment of Proline, Chlorophyll and Malondialdehyde in Sensitive and Tolerant Rice (Oryza sativa L.) Cultivars under Salt Stress Conditions

Musavizadeh, Zahra; Zarini, Hamid Najafi; Hashemi-Petroudi, Seyyed Hamidreza Hashemi-Petroudi Seyyed Hamidreza; Kazemitabar, Seyed Kamal

doi:10.29252/jcb.10.25.28

Cited by 5 publications

(2 citation statements)

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“…Papp et al (1983) also reported that leaf thickness increased at all salinity levels and this change in leaf thickness increased chlorophyll levels. In similar results to this study, Sadat Musavizadeh et al (2018) reported significant effects of genotype, time, and their interactions on chlorophyll a and chlorophyll b contents of rice under salinity stress. They also observed no regular trend of changes in these traits at sampling times of 0, 6, 24, 48, 120, 72, and 168 h after salinity stress, but most of these traits occurred at the final time (168 h) after stress.…”

Section: Chlorophyll and Chlorophyllase Contentssupporting

confidence: 89%

“…Researchers reported similar results on increased proline (Martin et al, 1993;Heydari et al, 2010) and soluble carbohydrates (Hamada & Khalea, 2010;Farhoudi, 2014) in wheat under salinity stress. In a similar research on rice plant, proline content increased significantly with increasing after stress time and the tolerant cultivar contained higher levels than the sensitive cultivar (Sadat Musavizadeh et al, 2018). Kerepesi and Galiba (2000) stated increased carbohydrate concentrations in wheat seedlings to be a criterion for the selection of salinity-tolerant wheat cultivars.…”

Section: Content Of Osmolytesmentioning

confidence: 94%

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Evaluation of Salinity Stress Effects on Changes in Photosynthetic Pigments, Hydrogen Peroxide and Osmolytes in Sensitive and Tolerant Cultivars of Wheat Crop

Keshtiban¹,

Soltanloo²,

Ramazanpour³

et al. 2021

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Investigation of wheat response to salinity stress can help to better understand the effective defense mechanisms of salinity stress tolerance. For this purpose, biochemical and physiological traits related to salinity tolerance in wheat cultivars were evaluated at Gorgan University of Agricultural Sciences and Natural Resources in 2019. Experimental factors, included two wheat crop cultivars (Sarc and Chinese spring as tolerant and susceptible wheat cultivars, respectively) and sampling time series (zero or control, 24, 48, 72, and 96 h) were examined in a factorial experiment based on a completely randomized design with three replications. Salinity stress was applied with sodium chloride at a concentration of 250 mM to uniform 10-day-old seedlings at the two-leaf stage, followed by sampling of shoot tissue. The studied traits were hydrogen peroxide (H 2 O 2 ), chlorophyll a, chlorophyll b, total chlorophyll, chlorophyllase, carotenoids, proline, and total carbohydrates. Results of analysis of variance (ANOVA) indicated significant effects of genotype, time, and interaction of genotype × time (except H 2 O 2 and total carbohydrates) on all the studied traits. Results of interaction of genotype × time showed although the trend of changes in the studied traits, depending on the type of cultivar and the sampling time were different, but generally, the susceptible Chinese spring cultivar contained higher levels of chlorophyllase and carotenoids than the control time at the end of sampling time and also higher H 2 O 2 levels than the Sarc tolerant cultivar, while the Sarc tolerant cultivar, on the other hand, contained higher levels of chlorophyll a, chlorophyll b, total chlorophyll, and proline than the control time at the end of sampling time and also greater total carbohydrates than the susceptible Chinese spring cultivar. The results confirm the higher capacity of the antioxidant defense system of Sarc tolerant cultivar than the susceptible Chinese spring cultivar. Therefore, the osmolytes of proline and total carbohydrates are reliable for crop screening, particularly wheat crop, in salinity stress studies.

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Section: Chlorophyll and Chlorophyllase Contentssupporting

confidence: 89%