Castor plant is a complex biological system which can be characterized by the affluent magnitude of functional traits noticed in its life cycle.It becomes a routine process in the current day botanical sciences to scrutinize a biological phenomenon witnessed at morphological level of a plant species to its deep root cellular degree for absolute understanding.This scientific trend has been now applied in castor plant in the context of senescence physiology that is so prominently noticed in its life span.

Cytological analysis of castor plant cells has revealed a new sub-cellular compartment called ricinosomes whose biochemical evaluation specifically proteins as biomarkers led scientists to identify that it takes up its origin from endoplasimc reticulum.It seems to be an organelle comprehensively packed with proteins having proteolytic activity which is turn derived from paretal endoplasmic reticulum.Further,the scientists’ experimental designs over dominant protein members and their functional activation detected that ricinosomes are associated to apoptosis or programmed cell death in castor plant.

It is remarkable to notice a strange cell organelle and implicating it with a definite function.However it is equally significant to point the turn over of the organelle for a functional regulation in the system and revealing the associated bio-molecular members driving the ricinosomes of castor.

For Reference: http://www.pnas.org/content/98/9/5353.short