Growth of Indian mustard (Brassica juncea L.) in response to salicylic acid under high-temperature stress

Hayat, Shamsul; Masood, Asim; Yusuf, Mohammad; Fariduddin, Qazi; Ahmad, Aqil

doi:10.1590/s1677-04202009000300003

Cited by 58 publications

(21 citation statements)

References 37 publications

(20 reference statements)

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“…Among the genotypes stress tolerant index was higher in Co 99004 (0.84 and 0.86) and it range 0.70–0.84 and 0.71–0.86 at FP and GGP, respectively (Table 3). Hayat et al (2009) has also reported in mustard that NR activity decreased in heat stressed plants serves as a biochemical adaptation to conserve energy by stopping nitrate assimilation at the initial stage. Haba et al (2013) also recently stated that the activity of NR decreased in leaves exposed to high temperature in sunflower.…”

Section: Resultsmentioning

confidence: 99%

Adaptive physiological and biochemical response of sugarcane genotypes to high-temperature stress

Kohila

Gomathi

2018

Ind J Plant Physiol.

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Impact of elevated temperature on physiological and biochemical changes were evaluated in 5 commercial sugarcane genotypes and 2 wild species clones at two different growth phases. The study revealed that heat stress decreased chlorophyll content, chlorophyll stability index (CSI), SPAD value, maximum quantum efficiency of PSII photochemistry (Fv/Fm ratio), leaf gas exchange parameters, relative water content (RWC), and activities of nitrate reductase (NR), sucrose-metabolizing enzymes (SPS, SS, AI, NI) in all the genotypes and species clones. In contrast, elevated temperature induced an increase in proline, total phenolics content (TP), antioxidant enzyme activities (SOD and POX), lipid peroxidation (LP), membrane injury index (MII) and soluble sugar content in all clones. Principal component analysis based on physiological heat tolerance indexes could clearly distinguish sugarcane genotypes into three heat tolerance clusters. Noteworthy in comparison to the heat-sensitive varieties, sugarcane genotype that possessed higher degrees of heat tolerance Co 99004 displayed higher chlorophyll content, CSI, antioxidant enzyme activities, NR activity, RWC, total phenols, sucrose-metabolizing enzymes, soluble sugar content and leaf gas exchange and lower level of lipid peroxidation and membrane injury index.

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Section: Resultsmentioning

confidence: 99%

Adaptive physiological and biochemical response of sugarcane genotypes to high-temperature stress

Kohila

Gomathi

2018

Ind J Plant Physiol.

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“…These results are in agreement with those of Yildirim et al (2006), who showed that salinity caused a marked reduction in growth parameters of squash plants. One cause of growth rate reduction under stress conditions could be inadequate photosynthesis ( Figure 2D), less stomatal conductance ( Figure 2E), and consequently the limited carbon dioxide uptake (Hayat et al, 2009;Karlidag et al, 2011). Also, stress induced growth loss could be the result of inhibited cell division and expansion and increased H-pumping and apoplastic pH (Pitann et al, 2009).…”

Section: Discussionmentioning

confidence: 99%

Physiological and biochemical traits as tools to screen sensitive and resistant varieties of tomatoes exposed to salt stress

Fariduddin

Mir

Ahmad

2012

Braz. J. Plant Physiol.

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The present study was conducted to evaluate salt tolerance in seven different pure-line cultivars of tomato (Solanum lycopersicum L.) viz. K-21, Pusa Ruby, Pusa Gorav, Hera research, Selection N5, PKM-1 and S-22 based on several physiological and biochemical traits. Seedlings were transplanted to the pots, being exposed to different salinity levels in the form of NaCl (0, 50, 100, or 150 mM) at a 35-day stage of growth for six days. The plants exposed to salt stress presented a significant decline in growth, photosynthetic parameters, maximum quantum yield of PSII and leaf water relations, which were drastically reduced in variety S-22, while variety K-21 was the least affected. Electrolyte leakage was superior in proportion to an increase in salinity levels. Proline content and activity of antioxidant enzymes catalase, peroxidase, and superoxide dismutase were found maximum in variety K-21. Almost all the growth and physiological and biochemical traits had a significant genotypic variation, indicating that these parameters could be used as novel screening criteria for selecting the tolerant and sensitive cultivars exposed to salt stress.

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“…Kumar et al (2012) reported that the proline content increased in wheat under heat stress conditions [32]. The antioxidative activity and proline level of Indian mustard (Brassica juncea L.) decreased significantly in response to salicylic acid under heat stress, but the plants subjected to high temperatures showed a significant reduction in growth, photosynthesis traits and chlorophyll [24]. Jeshni et al (2014) showed that the proline content of chamomile increased in response to severe drought stress [8].…”

Section: Free Proline Concentrationmentioning

confidence: 99%

The Evaluation of Exogenous Application of Salicylic Acid on Physiological Characteristics, Proline and Essential Oil Content of Chamomile (Matricaria chamomilla L.) under Normal and Heat Stress Conditions

et al. 2016

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Abstract:The objective of this study was to investigate the effect of exogenous application of salicylic acid concentrations on the physiological and biochemical traits and essential oil content of chamomile under normal and heat stress conditions as induced by delayed sowing. The experiments were conducted during 2011-2012 as a factorial using a randomized complete block design with three replications, in a very hot region. The factors included five salicylic acid concentrations (0 (control), 1, 10, 25 and 100 mg¨L´1) and three chamomile cultivars (Bushehr, Bona, Bodegold). The seeds of chamomile were sown on two different sowing dates including an optimum planting date and a late planting date. The physiological traits (plant height, capitol diameter, 1000 grain weight, fresh and dried flower weight), total chlorophyll, proline and essential oil content were investigated. Analysis of variance showed that the effect of the environmental conditions (normal and heat stress) was significant on all physiological and biochemical traits with the exception of the essential oil content. The heat stress decreased physiological traits and total chlorophyll in comparison with the normal conditions but it had no significant effect on the essential oil content. Findings indicated that the application of exogenous salicylic acid improves essential oil content in chamomile cultivars under environmental heat stress conditions.

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Growth of Indian mustard (Brassica juncea L.) in response to salicylic acid under high-temperature stress

Cited by 58 publications

References 37 publications

Adaptive physiological and biochemical response of sugarcane genotypes to high-temperature stress

Adaptive physiological and biochemical response of sugarcane genotypes to high-temperature stress

Physiological and biochemical traits as tools to screen sensitive and resistant varieties of tomatoes exposed to salt stress

The Evaluation of Exogenous Application of Salicylic Acid on Physiological Characteristics, Proline and Essential Oil Content of Chamomile (Matricaria chamomilla L.) under Normal and Heat Stress Conditions

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