Fertilization occurs once the conidium of a different mating type makes contact with the trichogyne, a structure of the protoperithecium.
2.
Such contact can be followed by cell fusion leading to one or more nuclei from the fertilizing cell migrating down the trichogyne into the ascogonium.
3.
A branched system of slender hyphae, called the trichogyne, extends from the tip of the ascogonium projecting beyond the sheathing hyphae into the air.
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Carpogonium slightly protruded or broader on ventral side and 7.50 to 12.85 �m in diameter, trichogyne cylindrical elongated with wavy margin.
5.
The sexual cycle is initiated ( i . e . fertilization occurs ) when a cell ( usually a conidium ) of opposite mating type contacts a part of the trichogyne ( see Figure ).
6.
A very fine hypha, called trichogyne emerges from one gametangium, the " ascogonium ", and merges with a gametangium ( the " antheridium " ) of the other fungal isolate.
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The trichogyne will continue to grow until it encounters a spermatium; once it has been fertilized, the cell wall at its base progressively thickens, separating it from the rest of the carpogonium at its base.
8.
Spermatangia are produced in separate male plants on both primary and secondary laterals, apical or sub apical in position which are either single or in clusters, pairs are also common . First carpogonial branch arises at 15 30th axial cells, 1 2 per basal cell, 3 5 cell long, slightly curved with distinctly stalked cylindrical trichogyne on the dorsal side of asymmetrical carpogonium.
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