3 years ago

Morphological, Histobiochemical and Molecular Characterisation of Low Lignin Phloem Fibre ( llpf) Mutant of Dark Jute ( Corchorus olitorius L.)

A. Anil Kumar, N. Kumari, P. G. Karmakar, J. Souframanien, H. K. Sharma, S. P. Pandey, I. Chowdhury, S. J. Jambhulkar, R. K. Singh, S. B. Choudhary


Lignin is a versatile plant metabolite challenging high-end industrial applications of several plant products including jute. Application of developmental mutant in regulation of lignification in jute may open up door for much awaited jute based diversified products. In the present study, a novel dark jute (Corchorus olitorius L.) mutant with low lignin (7.23%) in phloem fibre being compared to wild-type JRO 204 (13.7%) was identified and characterised. Unique morphological features including undulated stem, petiole and leaf vein distinguished the mutant in gamma ray irradiated mutant population. Histological and biochemical analysis revealed reduced lignification of phloem fibre cells of the plant. RT-PCR analysis demonstrated temporal transcriptional regulation of CCoAMT1 gene in the mutant. The mutant was found an extremely useful model to study phloem fibre developmental biology in the crop besides acting as a donor genetic stock for low lignin containing jute fibre in dark jute improvement programme.

Publisher URL: https://link.springer.com/article/10.1007/s12010-017-2477-5

DOI: 10.1007/s12010-017-2477-5

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