A globoid is a spherical crystalline inclusion in a protein body found in seed tissues that contains

phytate Phytic acid is a six-fold dihydrogenphosphate ester of inositol (specifically, of the ''myo'' isomer), also called inositol hexakisphosphate (IP6) or inositol polyphosphate. At physiological pH, the phosphates are partially ionized, resulting in ...

and other nutrients for plant growth. These are found in several plants, including

wheat Wheat is a grass widely cultivated for its seed, a cereal grain that is a worldwide staple food. The many species of wheat together make up the genus ''Triticum'' ; the most widely grown is common wheat (''T. aestivum''). The archaeologi ...

and the genus ''

Cucurbita ''Cucurbita'' (Latin for gourd) is a genus of herbaceous fruits in the gourd family, Cucurbitaceae (also known as ''cucurbits'' or ''cucurbi''), native to the Andes and Mesoamerica. Five edible species are grown and consumed for their flesh an ...

''. These nutrients are eventually completely depleted during seedling growth. In ''

Cucurbita maxima ''Cucurbita maxima'', one of at least five species of cultivated squash, is one of the most diverse domesticated species. This species originated in South America from the wild subspecies ''Cucurbita maxima subsp. andreana'' over 4,000 years ago. ...

'', globoids form as early as the 3rd day of seedling growth. They are located in conjunction with a larger

crystal A crystal or crystalline solid is a solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions. In addition, macro ...

loid. They are electron–dense and vary widely in size.

References

Biological concepts Biology terminology Botanical nomenclature Plant anatomy {{plant-stub