Effects of toxic cyanobacterium Microcystis aeruginosa on the morphology of green alga Chlorella vulgaris
Identifieur interne : 000006 ( Main/Exploration ); précédent : 000005; suivant : 000007Effects of toxic cyanobacterium Microcystis aeruginosa on the morphology of green alga Chlorella vulgaris
Auteurs : Jing Dong [République populaire de Chine] ; Chenlu Li [République populaire de Chine] ; Mengyang Chang [République populaire de Chine] ; Dujuan Dai [République populaire de Chine] ; Shiwen Liu [République populaire de Chine] ; Bingyu Quan [République populaire de Chine] ; Yifan Zhang [République populaire de Chine] ; Yunni Gao [République populaire de Chine]Source :
- Annales de Limnologie - International Journal of Limnology [ 0003-4088 ] ; 2019.
English descriptors
- Teeft :
- Aeruginosa, Alga, Algae, Algal, Allelochemicals, Allelopathic, Allelopathic effect, Allelopathic inhibition, Allelopathic interaction, Allelopathy, Appl phycol, Bagchi, Biol, Biol ecol, Biomass, Cell number, Chang, Chla, Chla content, Chlorella, Chlorella vulgaris, Colony formation, Colony proportion, Cultivation, Cyanobacteria, Cyanobacterial, Cyanobacterium, Cyanobacterium microcystis aeruginosa, Dong, Ecol, Freshwater, Green alga, Green alga chlorella vulgaris, Green algae, Growth inhibition, Growth phase, Growth rate, Harmful algae, Initial cultivation biomass, Initial cultivation density, Lake taihu, Limnol, Limnol oceanogr, Ltrate, Ltrate treatment, Ltrates, Mello, Microb ecol, Microbiol, Microcystins, Microcystis, Microcystis aeruginosa, Morphological change, Morphology, Morphology change, Photosynthetic pigment, Phytoplankton, Present study, Previous study, Raciborskii, Scenedesmus, Target algae, Vulgaris, Wang, Zhang.
Abstract
In eutrophic freshwater lakes, cyanobacteria and green algae are in succession due to abiotic factors. Allelochemical interaction also exists. In this study, we indicated that filtrates of Microcystis aeruginosa can influence the growth rate and photosynthetic pigments of the target alga named Chlorella vulgaris. We also determined the morphological appearance and colony formation of green alga C. vulgaris that were induced by chemicals associated with a competitor cyanobacterium named M. aeruginosa. However, microcystins (MCs) were not the active substances in this study. The morphology changes and growth of C. vulgaris affected by M. aeruginosa filtrates were dependent on the initial cultivation density of the target algae and the cultivation phase of M. aeruginosa. We also assumed that the morphology changes were defensive strategies utilised by C. vulgaris to resist M. aeruginosa. The temporary stress of M. aeruginosa was favourable to the growth of C. vulgaris. By contrast, the continuous induction of colony formation by M. aeruginosa in the field inhibited the growth of C. vulgaris. The present results provided new insights into the interaction between algae and theoretical basis for algae succession in the field.
Pascal Laffaille takes great interests in fish ecology, especially focusing on the responses of fish populations and communities to anthropogenic disturbance. His current studies are aimed to propose management action plans.
Url:
DOI: 10.1051/limn/2019006
Affiliations:
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Allelochemical interaction also exists. In this study, we indicated that filtrates of Microcystis aeruginosa can influence the growth rate and photosynthetic pigments of the target alga named Chlorella vulgaris. We also determined the morphological appearance and colony formation of green alga C. vulgaris that were induced by chemicals associated with a competitor cyanobacterium named M. aeruginosa. However, microcystins (MCs) were not the active substances in this study. The morphology changes and growth of C. vulgaris affected by M. aeruginosa filtrates were dependent on the initial cultivation density of the target algae and the cultivation phase of M. aeruginosa. We also assumed that the morphology changes were defensive strategies utilised by C. vulgaris to resist M. aeruginosa. The temporary stress of M. aeruginosa was favourable to the growth of C. vulgaris. By contrast, the continuous induction of colony formation by M. aeruginosa in the field inhibited the growth of C. vulgaris. The present results provided new insights into the interaction between algae and theoretical basis for algae succession in the field.</div><div type="abstract" xml:lang="en">Pascal Laffaille takes great interests in fish ecology, especially focusing on the responses of fish populations and communities to anthropogenic disturbance. His current studies are aimed to propose management action plans.</div></front></TEI><affiliations><list><country><li>République populaire de Chine</li></country></list><tree><country name="République populaire de Chine"><noRegion><name sortKey="Dong, Jing" sort="Dong, Jing" uniqKey="Dong J" first="Jing" last="Dong">Jing Dong</name></noRegion><name sortKey="Chang, Mengyang" sort="Chang, Mengyang" uniqKey="Chang M" first="Mengyang" last="Chang">Mengyang Chang</name><name sortKey="Dai, Dujuan" sort="Dai, Dujuan" uniqKey="Dai D" first="Dujuan" last="Dai">Dujuan Dai</name><name sortKey="Gao, Yunni" sort="Gao, Yunni" uniqKey="Gao Y" first="Yunni" last="Gao">Yunni Gao</name><name sortKey="Li, Chenlu" sort="Li, Chenlu" uniqKey="Li C" first="Chenlu" last="Li">Chenlu Li</name><name sortKey="Liu, Shiwen" sort="Liu, Shiwen" uniqKey="Liu S" first="Shiwen" last="Liu">Shiwen Liu</name><name sortKey="Quan, Bingyu" sort="Quan, Bingyu" uniqKey="Quan B" first="Bingyu" last="Quan">Bingyu Quan</name><name sortKey="Zhang, Yifan" sort="Zhang, Yifan" uniqKey="Zhang Y" first="Yifan" last="Zhang">Yifan Zhang</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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