Differential responses of ribulose-1,5-bisphosphate carboxylase/oxygenase activities of two Vigna unguiculata cultivars to salt stress
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Vita 3 and Vita 5 are two Vigna unguiculata cultivars that differ in their capacities for survival in saline environments; Vita 3 is more tolerant and Vita 5 more sensitive. Both cultivars were submitted to salt stress with 0.1 M NaCl. After 8 days, root and shoot growth from both cultivars was reduced but reduction was more pronounced in Vita 5. Furthermore, leaf area was also reduced in this cultivar. Chlorophyll content and chlorophyll fluorescence parameters were not affected by salt stress, but the specific activities of ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) decreased in Vita 3 and increased in Vita 5. The use of immunological techniques also revealed that the Rubisco content from Vita 3 decreased while that of Vita 5 increased. The discussion of these results is aimed at reaching a better understanding of the differences between these cultivars in relation to salt stress.
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Rubisco can also be affected by salt in vivo.
“Flowers et al. (1977) reported that Rubisco activity is inhibited in vitro by high levels of salt, while Aragao et al. (2005) suggested that Rubisco can also be affected by salt in vivo (Table 2).”
From Photosynthesis under stressful environments: An overview (2013) · cites this paper as Aragao et al. 2005
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Photosynthesis under stressful environments: An overview
Ashraf, M., & Harris, P. J. C. (2013) · Photosynthetica · doi:10.1007/s11099-013-0021-6 · Cited by 2,028 · see citing works
- Authors
- Aragão, M. E. F. D., Guedes, M. M., Otoch, M. D. L. O., Guedes, M. I. F., Melo, D. F. D., & Lima, M. D. G. S.
- Affiliations
- Universidade Estadual do Ceará (BR)
- Universidade Federal do Ceará (BR)
- Universidade Federal do Ceará, Brasil
- Venue
- Brazilian Journal of Plant Physiology
- Publisher
- FapUNIFESP (SciELO)
- Published
- 2005-06
- Volume
- 17
- Issue
- 2
- Pages
- 207-212
- ISSN
- 0103-3131 (ISSN-L)
- 1677-0420
- OpenAlex
- W2046565352
- Cited by
- 20
- References
- 0
- Citations by year
- 2024: 1 · 2023: 1 · 2022: 1 · 2021: 1 · 2020: 2 · 2019: 1 · 2018: 1 · 2017: 1 · 2016: 3 · 2013: 1
- FWCI
- 0.80
- Type
- journal article
- Language
- en
- Open access
- diamond
- doi.org
- Licence
- cc-by-nc
- Locations
- Brazilian Journal of Plant Physiology (publishedVersion, cc-by-nc)
- The Scientific Electronic Library Online (Fundação de Amparo à Pesquisa do Estado de São Paulo) (submittedVersion, other-oa)
- Topics
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Stress Responses and Tolerance
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Photosynthetic Processes and Mechanisms
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant responses to elevated CO2
- Keywords
- cowpea, salt stress, salt tolerance, Rubisco, cultivar differences, sodium chloride, root and shoot growth, leaf area, chlorophyll fluorescence, Rubisco content
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