| 单词 |
nostoc |
| 释义 |
nostocenUK
nos·toc N0171000 (nŏs′tŏk′)n. Any of various freshwater nitrogen-fixing cyanobacteria of the genus Nostoc that form spherical colonies of filaments embedded in a gelatinous substance.
[New Latin, coined by Paracelsus.]nostoc (ˈnɒstɒk) n (Microbiology) any cyanobacterium of the genus Nostoc, occurring in moist places as rounded colonies consisting of coiled filaments in a gelatinous substance[C17: New Latin, coined by Paracelsus]nos•toc (ˈnɒs tɒk)
n. any blue-green algae of the genus Nostoc, characteristically forming jellylike colonies in moist places. [1640–50; < New Latin, coined by Paracelsus] Thesaurus| Noun | 1. | nostoc - found in moist places as rounded jellylike coloniesblue-green algae, cyanobacteria - predominantly photosynthetic prokaryotic organisms containing a blue pigment in addition to chlorophyll; occur singly or in colonies in diverse habitats; important as phytoplanktongenus Nostoc - type genus of the family Nostocaceae: freshwater blue-green algae |
NostocenUK
Nostoc a genus of blue-green algae of the class Hor-mogonaceae. There are approximately 50 species, living in almost all climatic zones, in fresh waters and on damp cliffs and soil. Colonies of the algae are gelatinous and spherical, with a diameter of up to 10 cm. They resemble tapes or filaments and are free-living or sedentary. The colonies consist of single rows of filaments buried in the slime. Each filament is composed of thick-walled cells called heterocysts. The algae reproduce by spores or vegetatively, with bits of the filaments breaking off. There are some nitrogen-fixing species. Some species of Nostoc are used as food in Asian countries. nostocenUK
nostoc (nŏs′tŏk′)n. Any of various freshwater nitrogen-fixing cyanobacteria of the genus Nostoc that form spherical colonies of filaments embedded in a gelatinous substance.nostocenUK
Related to nostoc: cyanobacteria, spirulinaWords related to nostocnoun found in moist places as rounded jellylike coloniesRelated Words- blue-green algae
- cyanobacteria
- genus Nostoc
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