Response of grazer-induced colony formation of Scenedesmus obliquus in relation to grazer's size

2015 ◽  
Vol 186 (3) ◽  
pp. 243-248 ◽  
Author(s):  
Xuexia Zhu ◽  
Xinyan Wu ◽  
Lu Zhang ◽  
Chen Zhu ◽  
Zhou Yang
Keyword(s):  
Colony Formation ◽  
Scenedesmus Obliquus

scholarly journals Linear alkylbenzene sulfonate (LAS) promotes sedimentation and lipid accumulation in Scenedesmus obliquus

RSC Advances ◽  
2017 ◽  
Vol 7 (15) ◽  
pp. 9244-9250 ◽  
Author(s):  
Qiang Peng ◽  
Miaomiao Zhao ◽  
Guangzhu Shen ◽  
Xinyu Gan ◽  
Ming Li
Keyword(s):  
Lipid Accumulation ◽  
Colony Formation ◽  
Linear Alkylbenzene Sulfonate ◽  
Scenedesmus Obliquus ◽  
Linear Alkylbenzene ◽  
Alkylbenzene Sulfonate

Linear alkylbenzene sulfonate promotes sedimentation by inducing colony formation of Scenedesmus obliquus. It also promotes lipid accumulation in S. obliquus.

Potential grazing intensity directly determines the extent of grazer-induced colony formation in Scenedesmus obliquus

2015 ◽  
Vol 61 ◽  
pp. 271-277 ◽  
Author(s):  
Xuexia Zhu ◽  
Haihong Nan ◽  
Qinwen Chen ◽  
Zhongqiu Wu ◽  
Xinyan Wu ◽  
...  
Keyword(s):  
Colony Formation ◽  
Scenedesmus Obliquus ◽  
Grazing Intensity

Magnesium depletion suppresses the anti-grazer colony formation in Scenedesmus obliquus

2018 ◽  
Vol 25 (34) ◽  
pp. 34228-34235 ◽  
Author(s):  
Xinying Hou ◽  
Qiming Zhou ◽  
Zeshuang Wang ◽  
Qingdan Kong ◽  
Yunfei Sun ◽  
...  
Keyword(s):  
Colony Formation ◽  
Scenedesmus Obliquus ◽  
Magnesium Depletion

Low temperature and Daphnia-associated infochemicals promote colony formation of Scenedesmus obliquus and its harvesting

2016 ◽  
Vol 39 (1) ◽  
pp. 85-90 ◽  
Author(s):  
Xuexia Zhu ◽  
Jingwen Yang ◽  
Xingxing Zhang ◽  
Lu Zhang ◽  
Xiaojun Wang ◽  
...  
Keyword(s):  
Low Temperature ◽  
Colony Formation ◽  
Scenedesmus Obliquus

scholarly journals Reversible colony formation and the associated costs in Scenedesmus obliquus

2019 ◽  
Vol 41 (4) ◽  
pp. 419-429 ◽  
Author(s):  
Dania Albini ◽  
Mike S Fowler ◽  
Carole Llewellyn ◽  
Kam W Tang
Keyword(s):  
Colony Formation ◽  
Population Growth Rate ◽  
Single Cells ◽  
Scenedesmus Obliquus ◽  
Inducible Defense ◽  
Substantial Cost ◽  
Stress Indicators ◽  
Photosystem Ii Efficiency ◽  
Lower Population ◽  
Chlorophyll A Content

AbstractGrazer-induced colony formation as a defense strategy in microalgae such as Scenedesmus species has been widely reported, but the associated costs and reversibility of the colonies are rarely studied. We experimentally showed that Scenedesmus obliquus formed chained colonies in the presence of a predator, including predators separated from the algae by a membrane, but quickly reverted to single cells after the removal of the predator—a defining characteristic of an inducible defense. We detected stress indicators—astaxanthin esters—in the algal populations in the presence of grazers but not when grazers were absent. We found significant costs associated with S. obliquus colony formation in terms of lower population growth rate, lower photosystem II efficiency and lower cellular chlorophyll a content. These results together show that colony formation as an inducible defense in S. obliquus against grazers comes at a substantial cost such that the defense must be switched off and the colonies revert to single cells when the predation risk disappears.

pH-associated changes in induced colony formation and growth of Scenedesmus obliquus

2016 ◽  
Vol 187 (3) ◽  
pp. 241-246 ◽  
Author(s):  
Jingwen Yang ◽  
Bangping Li ◽  
Chaowei Zhang ◽  
Hongxuan Luo ◽  
Zhou Yang
Keyword(s):  
Colony Formation ◽  
Scenedesmus Obliquus
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