| 释义 |
Zygomycetes, n. pl. Bot.|zaɪgəʊmaɪˈsiːtiːz|
Also (rare) zygo-.
[mod.L., ad. G. Zygomyceten (O. Brefeld Bot. Untersuchungen über Schimmelpilze (1872) I. 53): see zygo-, mycetes n. pl.]
A class of saprophytic and parasitic fungi in which sexual reproduction is by fusion of usu. similar gametangia to produce a zygospore and asexual reproduction is by means of non-motile spores; fungi of this class. Occas. in sing. Zygomycete |-ˈmaɪsiːt|. Hence zygomyˈcetous a.
[1874Q. Jrnl. Microsc. Sci. XIV. 56 Brefeld does not admit that Chætocladium and Piptocephalis possess sporangia, but only conidia. According to his views, therefore, the term Zygomycetes is more expressive than Mucorini, which he restricts to the sporangiferous Zygomycetes. This, however, appears to us founded on an error.] 1887H. E. F. Garnsey tr. A. de Bary's Compar. Morphol. & Biol. of Fungi vi. 345 This coincidence with a fixed period of the year is at least not a general rule in the zygospores of the Zygomycetes. 1928C. W. Dodge tr. Gäumann's Compar. Morphol. Fungi xxxvi. 621 A convergent development has apparently occurred in the Zygomycetous sporangia which have become gonotoconts. 1930H. M. Fitzpatrick Lower Fungi. Phycomycetes ii. 34 The origin of the Zygomycete line is somewhat more obscure, though forms possessing one or more undoubted zygomycetous characters exist among the Ancylistales and Chytridiales. 1937Gwynne-Vaughan & Barnes Struct. & Developm. Fungi (ed. 2) 16 The Zygomycetes..are the first fungi to colonise dung. 1952C. J. Alexopoulos Introd. Mycol. vii. 180 Such a theory is based almost entirely on the asexual cycle, the zygomycetous reproduction having no counterpart in the present-day Saprolegniaceae which might give us a clue to its origin. 1978Bio Systems X. 97/2 There are several eukaryote groups where there is, so far, no solidly based evidence for a flagellate ancestry:..(4) zygomycete fungi. 1979I. K. Ross Biol. of Fungi xiii. 378 There are three main methods by which spores are actively released: the bursting of a turgid cell (ascomycetes and some zygomycetes), the rounding off of a surface under tension (some zygomycetes, some basidiomycetes) and the so-called ballistospore discharge. 1982Phytopathology LXXII. 1102 (heading) Synoptic keys to the genera and species of zygomycetous mycorrhizal fungi. |