Physiological and anthocyanin biosynthesis genes response induced by vanadium stress in mustard genotypes with distinct photosynthetic activity

Muhammad Imtiaz, Muhammad Mushtaq, Muhammad Nawaz, Muhammad Ashraf, Muhammad Rizwan, Sajid Mehmood, Omar Aziz, Muhammad Rizwan, Muhammad Virk, Qaiser Shakeel, Raina Ijaz, Vasillis Androutsopoulos, Aristides Tsatsakis, Michael Coleman

Research output: Contribution to journalArticle

Abstract

The present study aimed to elucidate the photosynthetic performance, antioxidant enzyme activities, anthocyanin contents, anthocyanin biosynthetic gene expression, and vanadium uptake in mustard genotypes (purple and green) that differ in photosynthetic capacity under vanadium stress. The results indicated that vanadium significantly reduced photosynthetic activity in both genotypes. The activities of the antioxidant enzymes were increased significantly in response to vanadium in both genotypes, although the purple exhibited higher. The anthocyanin contents were also reduced under vanadium stress. The anthocyanin biosynthetic genes were highly expressed in the purple genotype, notably the genes TT8, F3H, and MYBL2 under vanadium stress. The results indicate that induction of TT8, F3H, and MYBL2 genes was associated with upregulation of the biosynthetic genes required for higher anthocyanin biosynthesis in purple compared with the green mustard. The roots accumulated higher vanadium than shoots in both mustard genotypes. The results indicate that the purple mustard had higher vanadium tolerance.
Original languageEnglish
Pages (from-to)20-29
JournalEnvironmental Toxicology and Pharmacology
Volume62
Early online date13 Jun 2018
DOIs
Publication statusE-pub ahead of print - 13 Jun 2018

Bibliographical note

© 2018, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International

Keywords

  • Vanadium
  • Brassica
  • Anthocyanins
  • Gene expressions
  • Photosynthetic activity

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    Imtiaz, M., Mushtaq, M., Nawaz, M., Ashraf, M., Rizwan, M., Mehmood, S., Aziz, O., Rizwan, M., Virk, M., Shakeel, Q., Ijaz, R., Androutsopoulos, V., Tsatsakis, A., & Coleman, M. (2018). Physiological and anthocyanin biosynthesis genes response induced by vanadium stress in mustard genotypes with distinct photosynthetic activity. Environmental Toxicology and Pharmacology, 62, 20-29. https://doi.org/10.1016/j.etap.2018.06.003