Endosperm is the most important economic part of the coconut palm and provides a refreshing health drink during the immature stage and edible grade oil during the mature stage. Thus the Endosperm has a cellular form , from the very beginning because first and subsequent divisions are all accompanied by wall formation . Nuclear endosperm type of endosperm categorizes liquid coconut endosperm. Type I with the softest solid endosperm is preferred for making ball candies since it is easily shredded and molded into balls, whereas type III with its hard endosperm shredded into … In Areca and Phoenix the endosperm becomes very hard (Fig. The nucleus divides repeatedly into at last 128 nuclei. In Areca nut the development of the endosperm is like that of coconut but the embryo sac cavity is small and it is completely filled up by the growth of the endosperm, and later becomes very hard. The nuclear chalazal end develops into a vermiform appendix (Kausik,1941 Fig: Endosperm formation in Acalypha In coconut,the endosperm is nuclear type. A hard shell encloses the insignificant embryo with its abundant endosperm, composed of both ‘meat’ and liquid. In the coconut, cell wall formation of endosperm is never found complete. 1. mature nut is shaken. How the primary endosperm nucleus (PEN) develops into endosperm differs in various plants. Example – Coconut . Orchid seeds lack an endosperm; Types of Endosperm. The result of this is a coconut that has no water content and is instead filled with a soft flesh that resembles the consistency of jelly. As growth continues, the endosperm mature into their cellular phase and deposit into the rind of the coconut meat. Helobial type :- Coconut endosperm development is free nuclear type : The primary endosperm nucleus divides by free nuclear division. Example – Petunia , Datura etc . In Grevillea, the endosperm is cellular in the micropylar region and nuclear in the chalazal 7. end. Coconut fruit is classified as a drupe fruit type, comprising skin (exocarp), fibrous husk (mesocarp), hard shell (endocarp), kernel or white flesh (solid endosperm) and inside water (liquid endosperm). Endosperms are divided into three main types based on their development pattern. Then by the process of cytokinesis, it partly changes into cellular endosperm. This review describes this crop, its salient endosperm phenotypes and the prevailing hypotheses associated with these. Coconut, fruit of the coconut palm, a tree of the palm family. (ii) Cellular type: In this case, there is cytokinesis after each nuclear division of endosperm nucleus. Type II has viscous liquid endosperm but not as much as that of type III. It is one of the most important crops in the tropics. In Thailand, there are 3 major groups of coconut which are ‘Nam Hom’ (fragrant liquid endosperm), ‘Nam Nuclear Endosperm: It is the most common type of endosperm found. Coconut endosperm contains vitamins, amino acids, minerals and more for overall skin health. In this type, repeated free nuclear divisions take place; if a cell wall is formed it … The coconut soft-endosperm variants, the Makapuno and the Lono, are emerging as economically important. The Macapuno coconut tree is a dwarf mutant tree that occurs because of a recessive gene, which causes the abnormal development of the fruit’s endosperm. 2 . The coconut has a thick fibrous husk surrounding a single-seeded nut. 3 . The nuclear type of endosperm formation is the most common type and found in maize, wheat, rice, sunflower, etc. Cellular type :- In this case , there is cytokinesis after each nuclear division of Endosperm nucleus . 2.29 A). 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