Desmidiales - Wikipedia
Desmidiales, commonly called the desmids (Gr. desmos, bond or chain), are an order in the Charophyta, a division of green algae in which the land plants (Embryophyta) emerged. [2] Desmids consist of single-celled (sometimes filamentous or colonial) microscopic green algae.
Desmids
Desmid species (Desmidiaceae) in the Netherlands. Desmids are unicellular micro-organisms belonging to the conjugatophycean green algal groups of Mesotaeniaceae and Desmidiaceae. They occur in standing freshwaters. Although among the microbes counting as real giants, with the unaided eye even the largest representatives are hardly to be seen.
Freshwater Algae: Desmids. Introduction to Desmids with
Desmids are a distinctive group within the green algae (Chlorophycaea) and have always been amongst the favourite subjects of microscopists. Each cell consists of two symmetrical cellulose-walled halves usually with a pronounced constriction in between -- …
Conjugating Green Algae Including Desmids - ScienceDirect
2015年1月1日 · The conjugating green algae (Zygnematophyceae) are a group of freshwater microscopic green algae that have an atypical mode of sexual reproduction: conjugation. Members of the group form sexual spores (zygospores) by the union of nonflagellate gametes ( Brook, 1981 , Hoshaw et al., 1990 ).
Home - Digital Image Collection of Desmids
2022年9月2日 · Desmids are attractive microscopic single-celled green algae with a typical symmetrical appearance. The cells are divided into two halves ('semicells') that are mirror images of each other and show a remarkable variation in shape and ornamentation. Because desmids prefer clear and nutrient-poor fresh water, they are gaining increasing attention ...
Geographic distribution and ecophysiological adaptations of desmids …
2016年8月25日 · Although conjugating algae are considered to have a cosmopolitan freshwater distribution, numerous ecological and taxonomic investigations revealed that many desmid taxa (at the level of genus, species and variety) are capable of occupying specific geographic zones, characterized by particular climatic attributes.
Understanding Desmid Algae: Characteristics, Habitat, and …
Learn about desmid algae, a type of freshwater algae with unique cellular structures and important ecological roles. Discover where they are found, what they eat, and why they are studied in scientific research.
Desmids and Biofilms of Freshwater Wetlands: Development and ...
2007年4月23日 · An analysis of wetland biofilms from the Adirondack region of New York (USA) was performed with special emphasis on desmids, a group of evolutionarily advanced green algae commonly found in these habitats. Desmids constituted as much as 23.7% of the total algal and cyanobacterial flora of the biofilms during the July and August study periods.
Cultivation and Photophysiological Characteristics of Desmids …
2021年2月17日 · The conjugating algae group (Zygnematophyceae, Streptophyta) that involves two orders, Zygnematales (families Zygnemataceae and Mesotaeniaceae – saccoderm desmids) and Desmidiales (placoderm desmids), is a cosmopolitan group of algae widely distributed in all main types of freshwater ecosystems (Guiry 2013, Stamenković and Hanelt 2017).
[PDF] Biogeography of desmids - Semantic Scholar
Compared with other groups of unicellular freshwater algae, desmids lend themselves well to biogeographical studies since, at species level, identification is often relatively easy, whereas high ecological demands use to curtain their geographical distribution.
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