Synergistic effect of 24-epibrassinolide and salicylic acid on photosynthetic efficiency and gene expression in Brassica juncea L. under Pb stress | Zendy

Sukhmeen Kaur Kohli | Zendy; Neha Handa | Zendy; Anket Sharma | Zendy; Vinod Kumar | Zendy; Parminder Kaur | Zendy; Renu Bhardwaj | Zendy

Open Access

Synergistic effect of 24-epibrassinolide and salicylic acid on photosynthetic efficiency and gene expression in Brassica juncea L. under Pb stress

Author(s) -

Sukhmeen Kaur Kohli,

Neha Handa,

Anket Sharma,

Vinod Kumar,

Parminder Kaur,

Renu Bhardwaj

Publication year - 2017

Publication title -

turkish journal of biology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.323

H-Index - 38

eISSN - 1303-6092

pISSN - 1300-0152

DOI - 10.3906/biy-1707-15

Subject(s) - brassica , salicylic acid , photosynthesis , biology , shoot , germination , botany , brassinolide , pigment , horticulture , photosynthetic efficiency , photosynthetic pigment , growth inhibition , plant growth , chemistry , biochemistry , cell growth , organic chemistry

Lead (Pb) has wide-ranging effects on various essential physiological processes in plants including seed germination, root/ shoot growth, photosynthetic efficiency, water status, and activities of enzymes. The effect of combined treatment of 24-epibrassinolide (10-7 M, EBL) and salicylic acid (1 mM, SA) on growth, photosynthetic attributes, and phenolic compounds in 30-, 60-, and 90-day-old plants of Brassica juncea L. under Pb stress (0.25 mM, 0.50 mM, and 0.75 mM) were studied. It was observed that Pb toxicity resulted in lowered growth and photosynthetic efficiency. The expressions of CHLASE, PSY, CHS, and PAL genes were altered. Presoaking treatment with the combination of EBL and SA for metal-stressed plants mitigated the adverse effects of metal stress by improving growth and levels of pigment and phenolic compounds.

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