Pollen apertures are regions of the pollen wall that may involve exine thinning or a significant reduction in exine thickness.
12.
The exine is 1.5 2.4 �m thick, with 1 2 �m long gemmae or bacula.
13.
The anthers are dorsifixed, linear and basally sagittate; the pollen is monosulcate and elliptic with tectate, reticulate exine.
14.
There are around 60 stamens with very short filaments, the elongated, basifixed anthers carry triangle shaped pollen with reticulate, tectate exine.
15.
The pollen is circular to elliptical and monosulcate; exine reticulate and tectate and irregularly spotted with striate spines; the tiny pistillode is trifid.
16.
They carry three or six stamens on short, recurved filaments with basifixed, latrose anthers with elliptic, monosulcate pollen and scabrate, tectate exine.
17.
The staminate flowers have three pointed sepals and as many valvate petals; the six stamens have strongly inflexed filaments with oblong dorsifixed anthers carrying elliptic pollen with finely reticulate, tectate exine.
18.
The callose wall is broken down by an enzyme called callase and the freed pollen grains grow in size and develop their characteristic shape and form a resistant outer wall called the exine and an inner wall called the intine.
19.
The exine layer is often intricately sculptured in species-specific patterns ( see image at right ), allowing material recovered from ( for example ) lake sediments to provide useful information to palynologists about plant and fungal populations in the past.
20.
The category in its strictest application includes essentially all bees, and a few different kinds of wasps, as pollen is often the only solid food consumed by all life stages in these insects ( palynivorous mites and thrips typically feed on the liquid content of the pollen grains without actually consuming the exine ).
How to say exine in Hindi and what is the meaning of exine in Hindi? exine Hindi meaning, translation, pronunciation, synonyms and example sentences are provided by Hindlish.com.
