Untitled

Gangopadhyay, Gaurab; Basu, Sangita; Mukherjee, Barid B.; Gupta, Sudhiranjan

doi:10.1023/a:1005860718585

Cited by 34 publications

(8 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Genotypic variations in proline accumulation have been observed in many studies and attempts were made to correlate its accumulation with tolerance of plants to stress. 18 These findings of the present investigation are similar with that of Gangopadhyay et al 19 who reported that proline regulate the growth under different stresses. Proline was higher in wheat during water stress and its level increased in stress condition.…”

Section: Discussionsupporting

confidence: 92%

See 1 more Smart Citation

Comparative physiological response of wheat genotypes under terminal heat stress

Dhyani

Ansari

Rao

et al. 2013

Plant Signaling & Behavior

View full text Add to dashboard Cite

Keywords: heat stress, malondialdehyde, proline, superoxide dismutase, timely and late sown condition, wheat genotypes thermostability, canopy function, stable green habit, better mobilization rate of food reserve and other technical or physiological parameters might be helpful to overcome yield loss under terminal heat stress. 12 In vitro studies of wheat plants in combination with genetic manipulation to develop heat tolerant wheat are of limited success. Therefore, the complex physiological-genetic approach could be useful to acquire heat tolerance in wheat to minimize the farmer's risk for reduced yield and low quality grain product. Here, Physiological evaluation of wheat genotypes was performed under timely and late sown condition. Results Estimation of chlorophyll index (SPAD-values), leaf area index (LAI) and proline content. Chlorophyll content (SPAD-values)of wheat genotypes viz., DBW-140, RAJ-3765, PBW-574, K-0-307 and HS-240 under timely and late sown was calculated after 30, 50, 70, 90 and 110 d. It was found that SPAD-values affected under timely and late sown conditions were 41.5, 38.9, 37.08, 37.67, 47.7, 47.59, 46.56, 46.73, 41.03, 40 and 40.15, 34.5, 34.76, 33.33, 45.63, 44, 43.03, 42.52, 4,137 and HS-240 genotypes showed highest reduction in LAI (0.3, 1.36, 3.78, 3.0 and 0.37, 2.08, 3.94, 3.29) at 30, 70 and 90 d after sowing, respectively (Fig. 1B). The proline content (μg g −1 FW) was found to be increased in all the genotypes studied (30.25, 160.5, 135.2, 262.1, 184.0 and 221.68, 236.55, 261.77, 419.35) under late sown condition as compared with that of timely sown condition (89.6, 106.8, 119.6, 62.0 and 21.98, 20.66, 37.0, 20.86, 18.37) at both anthesis and 15 DAS, except , respectively (Fig. 1C).Evaluation of malondialdehyde (MDA) content, superoxide dismutase (SOD) activity, heat susceptibility index (s) (HIS) and yield associated traits. The amount of malondialdehyde (MDA) (μ mole g −1 FW) produced when polyunsaturated fatty acids in the membrane undergone lipid peroxidation in wheat genotypes were calculated as 13. 06, 11.80 and 7.26, 4.23 in HS 240 and K-0-307 genotypes respectively at the time of anthesis in late sown and timely sown conditions. The similar trends were also observed in HS 240 and K-0-307 genotypes 15 DAS, which followed by Raj 3765, DBW 140 and PBW 574 genotypes ( Fig. 2A). There is no significant increase in superoxide dismutase (SOD) activity (unit mg −1 FW) in genotypes evaluated at anthesis stage under timely and late sown conditions. In contrast, after 15 d of anthesis SOD activity was highest in RAJ-3765 (1.88) whereas in HS-240 and K-0-307 genotypes it was lowest (1.63 and 1.60) under late sown condition (Fig. 2B). The heat susceptibility index (HIS) of HS 240 and K-0-307 wheat genotypes was highest (1.33, 1.57, 1.51 and 1.17, 1.34, 1.65), which followed by DBW 140, Raj 3765 and PBW 574 genotypes (0.846, 0.649 and 0.411), (0.780, 0.905 and 0.905) and (0.897, 0.457 abd 0.682) for 1000-grain weight, grain weight and grain yield, respectively (Fig. 2C). Y...

show abstract

Section: Discussionsupporting

confidence: 92%

“…18 These findings of the present investigation are similar with that of Gangopadhyay et al 19 who reported that proline regulate the growth under different stresses. Proline was higher in wheat during water stress and its level increased in stress condition.…”

Section: Discussionsupporting

confidence: 91%

Comparative physiological response of wheat genotypes under terminal heat stress

Dhyani

Ansari

Rao

et al. 2013

Plant Signaling & Behavior

View full text Add to dashboard Cite

show abstract

“…17 In many plant species, proline accumulation under salt stress has been correlated with stress tolerance, and its concentration has been shown to be generally higher in salt tolerant than in salt sensitive plants. [18][19][20][21] Its accumulation normally occurs in cytoplasm where it functions as molecular chaperons stabilizing the structure of proteins and its accumulation buffers cytosolic pH and maintains cell redox status. It has also been proposed that its accumulation may be part of a stress signal influencing adaptive responses.…”

Section: A Reviewmentioning

confidence: 99%

Role of proline under changing environments

Hayat

Alyemeni³

et al. 2012

Plant Signaling & Behavior

2,207

1,149

View full text Add to dashboard Cite

“…It is found that osmotic stress often results in the accumulation of proline (Verbruggen et al 1993;Watad et al 1983), and the amount of proline accumulation is proved to be related to the salt tolerance ability (Gupta and Srivastava 1990;Kishor et al 1995). Gangopadhyay et al (1997) also reported that a salt-adapted calli of tobacco retained more proline than that of unadapted calli when both were treated with salt shock. SOD is also considered as a useful enzyme to help plants defend salt stress (Shen et al 2002;Koca et al 2006).…”

Section: Analyses Of Proline Content and Sod Activitymentioning

confidence: 99%

In vitro selection and identification of sweetpotato (Ipomoea batatas (L.) Lam.) plants tolerant to NaCl

Han

Wang

et al. 2008

Plant Cell Tiss Organ Cult

View full text Add to dashboard Cite

In vitro selection of sweetpotato (Ipomoea batatas (L.) Lam.) plants tolerant to NaCl was achieved using embryogenic suspension cultures of sweetpotato cv. Lizixiang and gamma-ray induced mutation. Cell aggregates from embryogenic suspension cultures of Lizixiang were irradiated with 80 Gy gamma-ray, and 1 week after irradiation they were cultured in a selective medium containing 342 mM NaCl for in vitro selection. A total of 276 plants were regenerated from the irradiated 2,783 cell aggregates by a two-step in vitro selection procedure. After the regenerated plants were propagated into plant lines on the basal medium, they were cultured on the medium supplemented with 86, 171, 257 and 342 mM NaCl, respectively, in order to evaluate their in vitro salt tolerance. Of them 18 plant lines showed significantly higher in vitro salt tolerance than control plants. Proline and superoxide dismutase (SOD) were more accumulated in these 18 plant lines than in control plants when both were exposed to NaCl. Salt tolerance of the 18 plant lines was further evaluated with Hoalgland solution containing different concentrations of NaCl in a greenhouse. The results indicated that 3 of them had significantly better growth and rooting ability than the remaining 15 plant lines and control plants at 171 mM NaCl.

show abstract

Untitled

Cited by 34 publications

References 22 publications

Comparative physiological response of wheat genotypes under terminal heat stress

Comparative physiological response of wheat genotypes under terminal heat stress

Role of proline under changing environments

In vitro selection and identification of sweetpotato (Ipomoea batatas (L.) Lam.) plants tolerant to NaCl

Contact Info

Product

Resources

About