Open-access Leaf anatomy of micro-tomato phytochrome-mutants and chloroplast ultra-structure

Phytochrome-mutant plants have been used for phytochrome action characterization among all photoreceptors, in events of photomorphogenesis. Studies relating the phytochrome action on structural aspects, which are fundamental to the comprehension of plant development, are rare. The objective of this work was to analyze chloroplast ultra structure and leaf anatomical characteristics of micro-tomatos (Solanum lycopersicum L. cv. Micro-Tom) phytochrome-mutants aurea (sub express phytochrome), hp1 and atroviolacea (both super express phytochrome events-mediated) in plants in the flowering stage. The results show that phytochromes are responsible for the expression of many characteristics of leaf epidermis, mesophyll and chloroplast ultra-structure.

Photomorphogenesis; tomato


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