Development of tolerance against toxic Microcystis aeruginosa in three cladocerans and the ecological implications

Guo, Nining; Xie, Ping

doi:10.1016/j.envpol.2005.11.044

Cited by 83 publications

(59 citation statements)

References 37 publications

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“…Apart from the above-mentioned factors, toxic cyanobacteria might also affect herbivore zooplankton either directly or indirectly. Difference in tolerance of zooplankton species against toxic Microcystis was considered to be one of the reasons for zooplankton succession with Microcystis blooms (Guo and Xie, 2006). In Dianchi Lake, MC-containing and MC-free strains usually coexisted, but largesized Microcystis (over 100 m) accounting for approximately 80% of the total biomass (unpublished data) could account for the potentially high concentration of MCs (Wang et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

Modelling ecosystem structure and trophic interactions in a typical cyanobacterial bloom-dominated shallow Lake Dianchi, China

Shan

Wang

et al. 2014

Ecological Modelling

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Section: Discussionmentioning

confidence: 99%

Modelling ecosystem structure and trophic interactions in a typical cyanobacterial bloom-dominated shallow Lake Dianchi, China

Shan

Wang

et al. 2014

Ecological Modelling

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“…In Meiliang Bay of Lake Taihu, Yang et al (2006) reported that the intracellular microcystins concentration increased from 0.22 lg l -1 to 0.83 lg l -1 during our study period. Guo et al (2006) reported that small-sized cladocerans may develop stronger tolerance against toxic Microcystis than large-sized ones. In general, phytoplankton diversity is thought to be one of the main factors determining the seasonal succession of crustacean zooplankton .…”

Section: Discussionmentioning

confidence: 99%

Controlling factors of spring–summer phytoplankton succession in Lake Taihu (Meiliang Bay, China)

Xie

Li-wei

2008

Hydrobiologia

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The spring-summer successions of phytoplankton and crustacean zooplankton were examined weekly in Meiliang Bay of the subtropical Lake Taihu in 2004 and 2005. During the study period, the ecosystem of Meiliang Bay was characterized by (i) clearly declined nitrogen compounds (nitrate, TN, and ammonium) and slowly increased phosphorus compounds (TP and SRP), (ii) increased total phytoplankton density and rapid replacement of chlorophyta (mainly Ulothrix) by cyanobacteria (mainly Microcystis), and (iii) rapid replacement of large-sized crustaceans (Daphnia and Moina) by csmall-sized ones (Bosmina, Limnoithona, and Ceriodaphnia). Results from the CCA and correlation analysis indicate that the spring-summer phytoplankton succession was primarily controlled by abiotic factors. Cyanobacteria were mainly promoted by increased temperature and decreased concentrations of nitrogen compounds. The pure contribution of crustacean was low for the variation of phytoplankton suggesting a weak top-down control by crustacean zooplankton in the subtropical Lake Taihu.

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“…Body growth, reproduction, and age-specific tolerance (GST activity towards a special substrate as a marker) always differ if energy strategies are compared in different cladoceran species (Fulton and Paerl 1987b). Small-bodied zooplankton, such as Ceriodaphnia and Bosmina, always exhibit more flexible responses to changing food conditions and stronger resistance to toxic Cyanobacteria, which cause great mortality in large-bodied zooplankton species such as D. carinata (Guo and Xie 2006). These small-bodied zooplankters may have high GST activity in animals exposed to PNBC, so that Daphnia spp.…”

Section: Discussionmentioning

confidence: 99%

A study on the effects of food quantity and quality on glutathione S-transferase (GST) activity and growth rate parameters of Daphnia carinata varying in age

Guo

Xie

2010

Aquat Ecol

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The adverse influences of insufficient food and toxins on Daphnia carinata's body growth, reproduction and tolerance were investigated in the laboratory. Different concentrations of Scendesmus obliquus and a mixture of S. obliquus and microcystin (MC)-containing Microcystis aeruginosa PCC7820 were used to feed D. carinata. Glutathione S-transferase (GST) activity towards five chemical compounds (substrates) was measured and used as an indicator of their tolerance. Body growth rate and clutch size of D. carinata decreased with declined concentration or decreased proportion of S. obliquus in the diet. GST activity decreased with ageing in D. carinata. However, GST activity to several chemical compounds increased when food quantity or food quality decreased. Adult D. carinata had a lower GST activity towards p-nitrophenenzyl chloride (PNBC) than juveniles and exhibited a sharp decline (P \ 0.001) in GST activity towards PNBC as the animals aged. It is suggested that the age-specific decrease in GST activity is a possible mechanism for the high morality of adult D. carinata in the summer of eutrophic lakes.

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Development of tolerance against toxic Microcystis aeruginosa in three cladocerans and the ecological implications

Cited by 83 publications

References 37 publications

Modelling ecosystem structure and trophic interactions in a typical cyanobacterial bloom-dominated shallow Lake Dianchi, China

Modelling ecosystem structure and trophic interactions in a typical cyanobacterial bloom-dominated shallow Lake Dianchi, China

Controlling factors of spring–summer phytoplankton succession in Lake Taihu (Meiliang Bay, China)

A study on the effects of food quantity and quality on glutathione S-transferase (GST) activity and growth rate parameters of Daphnia carinata varying in age

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