Black seed color of the spring common vetch (Vicia sativa L.) cultivar Obskaya 16 is caused by blue anthocyanins accumulating in macrosclereids

doi:10.18699/lettersvj2021-7-10

Abstract

Highlights

Spring common vetch (Vicia sativa L.) is an important annual forage legume
It was shown that the black color of seeds in this cultivar is caused by blue anthocyanins starting to accumulate in the macrosclereids at the yellow pod developmental stage
The seed coat anatomy of cultivar Obskaya 16 at different developmental stages was studied by light microscopy on cryosections

Summary

Introduction

Spring common vetch (Vicia sativa L.) is an important annual forage legume. It is mainly cultivated as a cover crop, green manure, pasture, and for silage and hay production, but since γ-glutamyl-β-cyano-alanine toxins accumulating in the seeds it does not use for feeding purposes (Huang et al, 2017). Pigmentation of the seed coat is an important agronomic trait It is associated with physical dormancy often called as hardseededness which involves the development of a water-impermeable seed coat, caused by the presence of phenolics- and suberin-impregnated layers of palisade cells of the epidermis (Smýkal et al, 2014). Black-coated soybean seeds are characterized by slower initial imbibition rates, higher resistance to filed deterioration, thicker and tougher testas, higher lignin content and fungicidal properties in comparison with non-black seed coated cultivars (Souza, Marcos-Filho, 2001). White beans, which lack any coloration, are more susceptible to root rots and other infections (Smýkal et al, 2014)

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