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PERITHECIAL DEVELOPMENT IN HYPOMYCES AURANTIUS
Author(s) -
Samuels Gary J.
Publication year - 1973
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1973.tb10227.x
Subject(s) - locule , biology , ascocarp , primordium , botany , anatomy , hymenium , hypha , stamen , pollen , genetics , taxonomy (biology) , gene
Perithecia of Hypomyces aurantius are initiated by solitary, symmetrical, hyphal coils. During development of the ascocarp, a locule forms concomitantly with centripetal paraphyses, the uppermost of which elongate downward as a palisade of narrow, septate filaments, the apical paraphyses. The initiating coil retains its integrity in the middle of the primordium and becomes the ascogenous system. Uninucleate, diploid cells are part of the ascogenous system. The ascogenous system proliferates through croziers from which asci develop. The haploid chromosome number is 4. The perithecial papillae are formed of spherical cells. This pattern of development is a modification of the Nectria ‐type of development and characterizes the genus Hypomyces .