Mango (Mangifera indica L.) malformation: a malady of stress ethylene origin.
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Mango malformation is a major constrain in mango production worldwide causing heavy economic losses depending on cultivar type and susceptibility. The malady has variously been ascribed to be acarological, viral, fungal and physiological in nature. Here, we discuss the ethylene origin nature of malady. There are indications that most of the symptoms of mango malformation resemble with those of caused by ethylene effects. Multiple evidence reports of putative causal agents including Fusarium mangiferae to augment the endogenous pool of 'stress ethylene' are well documented. Therefore, over load of 'stress ethylene' impairs morphology malformed tissue and cyanide derived from ethylene biosynthesis causes necrosis and death of malformed cells. This review covers various factors eliciting 'stress ethylene' formation, role of ethylene in development of malady and regulation of ethylene action to reduce malformation in mango.
