Aluminium Fluoride induced changes in chlorophyll a fluorescence, antioxidants and psb A gene expression of Brassica juncea cultivars

Journal of Plant Interactions. 2018;13(1):472-482 DOI 10.1080/17429145.2018.1522001

 

Journal Homepage

Journal Title: Journal of Plant Interactions

ISSN: 1742-9145 (Print); 1742-9153 (Online)

Publisher: Taylor & Francis Group

LCC Subject Category: Agriculture: Plant culture | Science: Botany: Plant ecology

Country of publisher: United Kingdom

Language of fulltext: English

Full-text formats available: PDF, HTML

 

AUTHORS

Vinay Sharma (Banasthali Vidyapith)
Manisha Yadav (Banasthali Vidyapith)
Nilima Kumari (Banasthali Vidyapith)

EDITORIAL INFORMATION

Double blind peer review

Editorial Board

Instructions for authors

Time From Submission to Publication: 12 weeks

 

Abstract | Full Text

In present study, the effects of combined Aluminium and Fluoride (AlF) stress on chlorophyll a fluorescence, photosynthetic pigments, antioxidant system and psb A gene expression are first time reported in four Brassica juncea cultivars (CS-14, Pusa-Tarak, Bio-902 and Laxmi). Each cultivar was exposed to soil supplemented with AlF (0, 50 + 25, 100 + 50 and 150 + 75 mgkg−1). Lowest decline in the chlorophyll content, saturating photosynthetically active photon flux density, maximum apparent electron transport rate and effective quantum yield (PSII) under AlF was observed in Pusa-Tarak followed by CS-14, Bio-902 and Laxmi. The improved performance of the cultivar Pusa-Tarak under AlF stress was accompanied by an increase in proline level and enzymes activity of catalase and ascorbate peroxidase. However, significant increase in superoxide dismutase activity was observed in cultivar Laxmi. We also observed that AlF inhibits psb A gene expression to a lesser extent in tolerant cultivar Pusa-Tarak in comparison to susceptible cultivar Laxmi.