Premium
NUCLEAR STRUCTURE AND DIVISION IN THE VEGETATIVE MYCELIUM OF THE SAPROLEGNIACEAE
Author(s) -
Bakerspigel Alexander
Publication year - 1960
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.1537-2197.1960.tb07099.x
Subject(s) - biology , nucleus , nucleolus , saprolegnia , chromatin , mitosis , mycelium , division (mathematics) , metaphase , cell division , botany , microbiology and biotechnology , chromosome , genetics , dna , fish <actinopterygii> , gene , arithmetic , mathematics , fishery , cell
B akerspigel , A lexander . (The New Mount Sinai Hospital, Toronto.) Nuclear structure and division in the vegetative mycelium of the Saprolegniaceae. Amer. Jour. Bot. 47(2): 94—100. Illus. 1960.– Saprolegnia parasitica, S. ferax and Achlya racemosa are additional examples of fungi in whose vegetative mycelium the nuclei do not divide in a manner directly comparable to ordinary mitosis. During division the entire nucleus, which consists of a crescent, ring or cap of chromatin and the nucleolus, becomes angular and elongates. The chromatin separates into 2 portions which are situated at opposite ends of the elongating nucleus. As division proceeds the elongated nucleus constricts at the midregion and the sister nuclei separate. Each sister nucleus consists of a crescent of chromatin and a portion of the divided nucleolus. Spindles, chromosomal filaments or metaphase plates could not be demonstrated during division.