Open AccessJournal Article
The accumulation and compartmentation of proline in relation to salt tolerance of three sorghum cultivars
TLDR
Salinity stress increased markedly the protein content in the salt sensitive cultivar (Giza 113), which was accompanied with a drastic reduction in growth and pigmentation, and IAA markedly retarded the accumulation of proline in most cases.Abstract:
Interactive effect of salinity stress and IAA on growth, water content (WC) and some relevant metabolic activities of three sorghum cultivars (45- days old) were studied. Dry matter (DW), water content and tolerance index(TI) of the tested sorghum cvs. differed in response to salinity. Cvs. Dorado and Hagen Shandawil tolerated salinity up to the level of 4 and 2 bar NaCl, respectively, while cv. Giza 113 did not show tolerance to salinity stress. This was accompanied with differences in accumulation of carbohydrate and nitrogen compounds. Proline accumulation seems to be in response to injury. It was positively correlated with the growth criteria in cv. Dorado (the most resistance cultivar) and to some extent in cv. Hagen Shandawil, while negatively correlated in cv. Giza 113 (the most sensitive cultivar). Salinity stress increased markedly the protein content in the salt sensitive cultivar (Giza 113), which was accompanied with a drastic reduction in growth and pigmentation. IAA ameliorated the inhibitory effect of salinity on the growth, increased carbohydrates and protein content of all the three cultivars. IAA, also markedly retarded the accumulation of proline in most cases. The relationship between salt tolerance of sorghum cultivars and the changes in proline content is discussed.read more
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Studies on germination, seedling vigour, lipid peroxidation and proline metabolism in Catharanthus roseus seedlings under salt stress
C. Abdul Jaleel,Ragupathi Gopi,B. Sankar,P. Manivannan,A. Kishorekumar,R. Sridharan,Rajaram Panneerselvam +6 more
TL;DR: It was found that germination was delayed at lower salinity levels and inhibited at higher salinity regimes, and the activity of proline oxidase (PROX) decreased and the γ-glutamyl kinase (γ-GK) activity increased.
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The Possible Roles of Priming with ZnO Nanoparticles in Mitigation of Salinity Stress in Lupine ( Lupinus termis ) Plants
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TL;DR: The findings suggest that seed-priming with ZNPs, especially 60 mg L−1 ZnO is an effective strategy that can be used to enhance salt tolerance of lupine plants.
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Water deficit stress mitigation by calcium chloride in Catharanthus roseus: effects on oxidative stress, proline metabolism and indole alkaloid accumulation.
C. Abdul Jaleel,P. Manivannan,B. Sankar,A. Kishorekumar,Ragupathi Gopi,Ramamurthy Somasundaram,Rajaram Panneerselvam +6 more
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Soil Salinity Alters Growth, Chlorophyll Content, and Secondary Metabolite Accumulation in Catharanthus roseus
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Journal ArticleDOI
Alterations in osmoregulation, antioxidant enzymes and indole alkaloid levels in Catharanthus roseus exposed to water deficit
C. Abdul Jaleel,P. Manivannan,A. Kishorekumar,B. Sankar,Ragupathi Gopi,Ramamurthy Somasundaram,Rajaram Panneerselvam +6 more
TL;DR: The results suggest that the cultivation of medicinal plants like C. roseus in water deficit areas would increase its PRO metabolism, osmoregulation, defense system and the level of active principles.