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β-Amylase Induction and the Protective Role of Maltose during Temperature Shock
Open accessAbstract
A number of studies have demonstrated β-amylase induction in response to abiotic stress. In the present work, a temperature response profile in 5°C increments from 45°C to 0°C showed that induction at temperature extremes was specific for two members of the gene family (BMY7 and BMY8). Both members encode proteins that possess apparent transit peptides for chloroplast stromal localization. However, induction was not observed for other key starch degrading enzymes demonstrating a rather specific response to temperature stress for BMY7 and BMY8. Time course experiments for heat shock at 40°C and cold shock at 5°C showed that β-amylase induction correlated with maltose accumulation. Maltose has the ability, as demonstrated by in vitro assays, to protect proteins, membranes, and the photosynthetic electron transport chain at physiologically relevant concentrations. Therefore, β-amylase induction and the resultant maltose accumulation may function as a compatible-solute stabilizing factor in the chloroplast stroma in response to acute temperature stress.
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Citations
Cited by
Starch as a determinant of plant fitness under abiotic stress
Thalmann, M., & Santelia, D. (2017) · New Phytologist · doi:10.1111/nph.14491 · Cited by 870
Smith, A. M., Zeeman, S. C., & Smith, S. M. (2005) · Annual Review of Plant Biology · doi:10.1146/annurev.arplant.56.032604.144257 · Cited by 522
Salam, U., Ullah, S., Tang, Z.-H., Elateeq, A. A., Khan, Y., Khan, J., Khan, A., & Ali, S. (2023) · Life · doi:10.3390/life13030706 · Cited by 480
Stressed food – The impact of abiotic environmental stresses on crop quality
Wang, Y., & Frei, M. (2011) · Agriculture, Ecosystems & Environment · doi:10.1016/j.agee.2011.03.017 · Cited by 411
Maruyama, K., Urano, K., Yoshiwara, K., Morishita, Y., Sakurai, N., Suzuki, H., Kojima, M., Sakakibara, H., Shibata, D., Saito, K., et al. (2014) · Plant Physiology · doi:10.1104/pp.113.231720 · Cited by 296
Metadata
- Authors
- Kaplan, F., & Guy, C. L.
- Venue
- Plant Physiology
- Publisher
- Oxford University Press (OUP)
- Published
- 2004-07-01
- Volume
- 135
- Issue
- 3
- Pages
- 1674-1684
- ISSN
- 0032-0889 (ISSN-L)
- 1532-2548
- OpenAlex
- W2070982703
- Cited by
- 486
- References
- 0
- FWCI
- 12.00
- Type
- journal article
- Language
- en
- Open access
- green
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