Chloroplast proteins involved in drought stress response in selected cultivars of common bean ( L.).

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ID: 27026
2019
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Abstract
One of the major cell organelles, whose functions are affected during drought stress are chloroplasts. In this study, chloroplast proteome under drought was studied in two cultivars of common bean ( L), Tiber and more sensitive to drought, Starozagorski čern, which were subjected to drought for 6 and 13 days. A comparative proteomic analysis with 2D-DIGE was performed on the isolated chloroplast proteins from leaves. Together, 44 proteins with changed abundance between control and stressed plants were identified with LC-MS/MS from both cultivars. The majority of the identified proteins were involved in photosynthetic processes. The results showed a decrease in abundance in different structure components of photosystem I and II, and ATP synthase, which may indicate a suppression of light-dependent reactions by drought stress. Similar proteomic response for both cultivars after 6 and 13 days of drought was observed. Proteins with contrasting abundance patterns between the cultivars or proteins specific for only one cultivar, such as ferredoxin-NADP reductase, photosystem II stability/assembly factor HCF136, curvature thylakoid protein 1B, and plastidial membrane protein porin were pointed out as major identified proteins revealing differential abundance between the cultivars. Taken together, our results provide insight into the molecular response of chloroplasts in common bean under drought stress, whereas conclusions about the tolerance mechanisms require further studies.
Reference Key
zadranik2019chloroplast3 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Zadražnik, Tanja;Moen, Anders;Šuštar-Vozlič, Jelka;
Journal 3 Biotech
Year 2019
DOI
10.1007/s13205-019-1862-x
URL
Keywords Keywords not found

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