Topic
Characium
About: Characium is a research topic. Over the lifetime, 7 publications have been published within this topic receiving 115 citations.
Papers
TL;DR: Phylogenetic analyses utilizing the molecular data fully support the ultrastructural findings, suggesting that the similar vegetative cell morphologies observed in these organisms have resulted from convergence.
Abstract: Alternative evolutionary hypotheses generated from features of vegetative cell morphology and motile cell ultra-structure were investigated using a molecular data set. Complete nuclear-encoded small subunit (18S) ribosomal RNA (rRNA) gene sequences were determined for six species (three each) of the chlorococcalean green algae “Neo chloris” and Characium. Based on motile cell ultra-structure, it was previously shown that both genera could be separated into three distinct groups possibly representing three separate orders and two classes of green algae. 18S rRNA gene sequences were also obtained for three additional taxa, Dunaliella parva Lerche, Pediastrum duplex Meyen, and Friedmannia israelensis Chantanachat and Bold. These organisms were selected because each, in turn, is a representative of one of the three ultrastructural groups into which the Neochloris and Characium species are separable. Phylogenetic analyses utilizing the molecular data fully support the ultrastructural findings, suggesting that the similar vegetative cell morphologies observed in these organisms have resulted from convergence.
91 citations
TL;DR: Seven green algae were isolated from soils of Asian and Oceanian countries; Indonesia, Japan, Nepal and Papua New Guinea using light microscopy using cultural techniques and 5 species and 1 form which have been deposited at UTEX as taxa of Chlorosarcinopsis are proposed to include.
33 citations
TL;DR: Ten taxa are newly recorded in algal flora of Korea by Kim and Kim (2012) and this study reviewed about these taxa.
Abstract: A study on Chlorococcal algae was carried out at 21 stations (ponds, swamps, reservoirs, lakes and rivers) from May 2011 to January 2012. The families of Botryococcaceae and Characiaceae of Chlorococcales were investigated to the extent of 8 genera, 20 species. Among them, 10 taxa are newly recorded in algal flora of Korea by Kim and Kim (2012) and this study reviewed about ; 1) Family Botryococcaceae: Dictyosphaerium elegans, D. reniforme, D. simplex, D. elongatum, 2) Family Characiaceae: Characium conicum, Ankyra ancora, A. judayi, A. calcarifera, Schroederia spiralis, S. indica.
5 citations
TL;DR: Species of Characium, Kirchneriella and Hydrodictyon have been investigated cytologically and their chromosome numbers determined and their common cytological features have been discussed on a comparative basis.
Abstract: SUMMARYSpecies of Characium, Kirchneriella and Hydrodictyon have been investigated cytologically and their chromosome numbers determined are as follows: Characium aungustum forma minor (11); Kirchneriella lunaris (18) and Hydrodictyon reticulatum (18). Their common cytological features have been discussed on a comparative basis.
1 citations
Journal Article•
TL;DR: This study covers only a small portion of algae of Sheikh Muhammadi area of District Peshawar and a lot of species are still to be discovered, hence further studies are suggested to be undertaken in this regard.
Abstract: The study of algae is very attractive due to their prehistoric and cosmopolitan nature. Algae are capable to survive in uncertain environment. Peshawar has many rivers and lakes i.e. River Kabul, Adezai, Naguman, Shah Alam and Bara River, where fresh water algae may exist abundantly, but very little notice has been paid to the algal diversity of all these rivers of Peshawar. To investigate the algae of Sheikh Muhammadi area of District Peshawar, a comprehensive study was conducted during 2013. A total of 22 algal species belonging to 10 families were recorded. Among them Oedogoniaceae appeard as the dominant family with 5 species followed by Stegeoclonium (3 spp.) while Cladophoraceae and Bulbochaete having two species each. Characiaceae, Scenedesmaceae, Oocystaceae, Centritractaceae, Coleochaetaceae, Tetrasporaceae Aphanochaete, Gongrosira, Characium, Cenedesmus, Closteriopsis, Centritractus, Coleochaete and Chaetopeltis got one species each. Some of the algal species are very useful for medicinal purpose, while others can be used as feed or food. Still most of the filamentous are noxious weeds of water bodies and hinder the intended use of water body. This study covers only a small portion of algae and a lot of species are still to be discovered, hence further studies are suggested to be undertaken in this regard.
1 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2016 | 1 |
| 2015 | 1 |
| 2014 | 1 |
| 2013 | 1 |
| 1992 | 1 |
| 1983 | 1 |