intine

American  

[in-teen, -tahyn] / ˈɪn tin, -taɪn /

noun

Botany.

1. the inner coat of a spore, especially a pollen grain.

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intine British  

/ -taɪn, ˈɪntɪn, -tiːn /

noun

1. the inner wall of a pollen grain or a spore Compare exine

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Etymology

Origin of intine

1825–35; < Latin int ( us ) within + -ine ²

Example Sentences

They increase in size and acquire a cell-wall, which becomes differentiated into an outer cuticular layer, or extine, and an inner layer, or intine.

From Project Gutenberg

Pollination having been effected, and the pollen-grain having reached the stigma in angiosperms, or the summit of the nucellus in gymnosperms, Fertilization. it is detained there, and the viscid secretion from the glands of the stigma in the former case, or from the nucellus in the latter, induce the protrusion of the intine as a pollen-tube through the pores of the grain.

From Project Gutenberg

The intine is uniform in different kinds of pollen, thin and transparent, and possesses great power of extension.

From Project Gutenberg

Intine, inner coat of a pollen grain.

From Project Gutenberg

The mature pollen-grain is, like other spores, a single cell; except in the case of some submerged aquatic plants, it has a double wall, a thin delicate wall of unaltered cellulose, the endospore or intine, and a tough outer cuticularized exospore or extine.

From Project Gutenberg