The tips of developing asci on these ascogenous hyphae curl over.
2.
Each of these ascogenous hypha bends to form a hook ( or crozier ) at its tip and the A and a pair of haploid nuclei within the crozier divide synchronously.
3.
During the ascus initial formation the crozier helps to maintain a dikaryotic state in the ascus initial and its side branch that will continue the spreading growth of the ascogenous hyphae in Ascomycota fruitbodies.
4.
The products of these nuclear divisions ( still in pairs of unlike mating type, i . e . A / a ) migrate into numerous ascogenous hyphae, which then begin to grow out of the ascogonium.
5.
Each of these ascogenous hypha bends to form a hook ( or crozier ) at its tip and the " A " and " a " pair of haploid nuclei within the crozier divide synchronously.
6.
The products of these nuclear divisions ( still in pairs of unlike mating type, i . e . " A / a " ) migrate into numerous ascogenous hyphae, which then begin to grow out of the ascogonium.
7.
Each of these ascogenous hyphae bends to form a hook ( or " crozier " ) at its tip and the " A " and " a " pair of haploid nuclei within the crozier divide synchronously.
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