Exogenously applied 5-aminolevulinic acid mediated physiochemical regulations ameliorate weak light stress in tobacco seedlings

Authors

  • Najia Li Chongqing Tobacco Science Research Institute, Chongqing, 400715, China
  • Muhammad Shahid Department of Agronomy, University of Agriculture, Faisalabad 38040, Pakistan
  • Xuefeng Zong College of Agronomy and Biotechnology, Southwest University, Chongqing 400716, China
  • Jun Lv College of Agronomy and Biotechnology, Southwest University, Chongqing 400716, China
  • Daibin Wang Chongqing Tobacco Science Research Institute, Chongqing, 400715, China
  • Amna Saleem Quality Control Laboratory, Bahawalpur 63100, Pakistan
  • Shakeel Ahmad Anjum Department of Agronomy, University of Agriculture, Faisalabad 38040, Pakistan
  • Sangen Wang College of Agronomy and Biotechnology, Southwest University, Chongqing 400716, China

DOI:

https://doi.org/10.3329/bjb.v48i2.47681

Keywords:

Chlorophyll fluorescence, Membrane stability, Osmo-protectants, Oxidative stress, Photosynthesis, Quantum yield, Stay green

Abstract

Experiments were conducted to study the deleterious impacts of low intensity light on physiochemical and agronomic attributes of tobacco, to evaluate varying doses of foliar 5-aminolevulinic acid (5-ALA) for alleviation of adverse impacts of low light intensity and to observe either 5-ALA modulated physiochemical regulations impart stress tolerance at agronomic level. Significant decrease of biomass accumulation, synthesis of osmo-protectants, chlorophyll contents, and chlorophyll fluorescence and increase in malondialdehyde were recorded compared to control. Exogenous application of 5-ALA excellently alleviated adverse impacts of low light intensity stress on agronomic and physiochemical attributes of tobacco seedlings. Conclusively, Light stress had adverse implications on all studied attributes while 5-ALA at 10-20 mg/l had remarkable alleviated deleterious impacts of light stress on plant.

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Published

2019-06-30

How to Cite

Li, N., Shahid, M., Zong, X., Lv, J., Wang, D., Saleem, A., Anjum, S. A., & Wang, S. (2019). Exogenously applied 5-aminolevulinic acid mediated physiochemical regulations ameliorate weak light stress in tobacco seedlings. Bangladesh Journal of Botany, 48(2), 353–358. https://doi.org/10.3329/bjb.v48i2.47681

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Articles