Work

Differential response ofBrassica junceacultivars to Al; consequences for chlorophyllafluorescence, antioxidants andpsb Agene

Year: 2018

Type: article

Abstract: The present study was undertaken to identify the aluminum (Al) tolerant cultivar of Brassica juncea. We examined the changes in antioxidant enzymes, proline level, chlorophyll a fluorescence and psb A gene expression at vegetative and reproductive growth stages of B. juncea cultivars (Bio-902, CS-14, Pusa-Tarak and Laxmi). The selected cultivars were exposed to soil (pH 5.2) supplemented with Al (0, 50, 100 and 150 mg kg−1). We observed the lowest decline in photosynthetic efficiency (ΔF/Fm′), ETR, PPFD values and psb A expression to Al stress in the cultivar Bio-902 (tolerant cultivar) followed by CS-14 and Pusa-Tarak whereas the highest decline was observed in the cultivar Laxmi (sensitive cultivar). The improved performance of the cultivar Bio-902 under Al stress was accompanied by an increase in proline level, CAT and APX activities but without any increase in SOD activity. However, significant increase in SOD activity was observed in Laxmi.

Source: Journal of Plant Interactions

DOI: 10.1080/17429145.2018.1526980

Authors: Nilima Kumari, Manisha Yadav, Vinay Sharma

Institution: Banasthali University

Language: English

Topic: Aluminum toxicity and tolerance in plants and animals

Subfield: Plant Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: gold

Estimated APC paid: $2,306