Effect of Thallium on the Growth of Anacystis nidulans and Chlamydomonas reinhardtii

Lustigman, B.; Lee, L. H.; Morata, J.; Khan, Fareed Ahmad

doi:10.1007/s001280000040

Cited by 12 publications

(6 citation statements)

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“…Many heavy metal studies have been done using Synechococcus sp . IU 625 as a model system to study the response of organisms to heavy metal stresses (Lee et al, 1992a; Lee and Lustigman, 1996; Lee et al, 1992b; Lee et al, 1991; Lee et al, 1994; Lee et al, 1993; Lee et al, 1999; Lee et al, 2002; Lustigman et al, 2000). …”

Section: Introductionmentioning

confidence: 99%

Temperature-induced activation of freshwater Cyanophage AS-1 prophage

et al. 2011

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Synechococcus sp. IU 625 is one of the freshwater cyanobacteria responsible for harmful algal blooms (HAB). Cyanophages can serve as natural control agents and may be responsible for algal bloom prevention and disappearance. Cyanophage AS-1, which infects Synechococcus sp. IU 625 (Anacystis nidulans) and Synechococcus cedrorum, plays an important role in the environment, significantly altering the numbers of its hosts. Since seasonal (temperature-dependent) lytic induction of cyanobacterial prophage has been proposed to affect seawater algal blooms, we investigated if the AS-1 lytic cycle could be induced by a shift to high temperature. Our hypothesis was confirmed, as more phages were released at 35°C than at 24°C, with maximal induction observed with a shift from 24°C to 35°C. Furthermore, transmission electron microscopy (TEM) images provide direct evidence of lysogenic to lytic conversion with temperature shift. Thus, temperature is an important inducer for AS-1 conversion from lysogenic to lytic cycle and could have applications in terms of modulating cyanobacterial populations in freshwater aquatic environments. The study gives insight into the effect of climate change on the interaction between cyanophage and cyanobacteria in freshwater ecosystems.

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Section: Introductionmentioning

confidence: 99%

Temperature-induced activation of freshwater Cyanophage AS-1 prophage

et al. 2011

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“…There is far less information about aquatic vegetation in Tl-contaminated environments, although these organisms, immersed as they are, are far more exposed to harmful substances. In Synechocystis, Avery et al (1991) demonstrated competition between Tl(I) and K ions, and Lustigman et al (2000) showed Tl(I) toxicity to the cyanobacterium Anacystis nidulans (Richter) Drouet & Daily and the chlorophyte Chlamydomonas reinhardtii P.A. Dang.…”

Section: Introductionmentioning

confidence: 99%

Diversity of algae in a thallium and other heavy metals-polluted environment

Płachno

Wołowski

Augustynowicz

et al. 2015

Ann. Limnol. - Int. J. Lim.

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-Thallium (Tl) compounds are extremely toxic to living organisms, including algae, but there is a dearth of basic information regarding the mechanisms of action of Tl in the environment and its effects on algae in natural conditions. This study examined algal diversity in an environment highly polluted by Tl. Graniczna Woda stream is contaminated by Tl and other heavy metal compounds (Cd, Pb and Zn). There we found 66 algae taxa representing five phyla, among which euglenophytes prevailed. We found that euglenophytes, including Phacus species, can survive and can show high species diversity in the presence of high Tl concentrations. The fact that these small organisms covered only by a pellicle are able to thrive in such inhospitable habitat, shows a great plasticity of these organisms. It is unclear whether the algae of Graniczna Woda stream have a broad tolerance to harmful conditions or rather represent new varieties/clones that evolved in metal-contaminated waters and are adapted to this environment.

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“…Previous studies have shown that increasing concentrations of heavy metals can slow cell growth [3-13]. Nickel is an essential metal that plays an important role in cellular physiology for eukaryotes and prokaryotes.…”

Section: Introductionmentioning

confidence: 99%

Physiological effects of nickel chloride on the freshwater cyanobacterium <i>Synechococcus</i> sp. IU 625

Nohomovich¹,

Nguyen²,

Quintanilla³

et al. 2013

ABB

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Harmful algal blooms (HABs) are a serious environmental problem globally. The ability of cyanobacteria, one of the major causative agents of HABs, to grow in heavy metal polluted areas is proving a challenge to environmental restoration initiatives. Some cyanobacteria secrete toxins, such as microcystin, that are potentially dangerous to animals and humans. In this study, the physiology of a cyanobacterium was assessed to nickel chloride exposure. Cell growths were monitored throughout the study with various nickel chloride concentrations (0, 10, 25 or 50 mg/L). Morphological abnormalities were observed with microscopic image analyses. Inductively coupled plasma mass spectrometry (ICP-MS) was carried out to trace the distribution of nickel during the growth period. This study provides insight on potential nickel response mechanisms in freshwater cyanobacteria, which may lead to effective HAB prevention strategy development.

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Effect of Thallium on the Growth of Anacystis nidulans and Chlamydomonas reinhardtii

Cited by 12 publications

References 11 publications

Temperature-induced activation of freshwater Cyanophage AS-1 prophage

Temperature-induced activation of freshwater Cyanophage AS-1 prophage

Diversity of algae in a thallium and other heavy metals-polluted environment

Physiological effects of nickel chloride on the freshwater cyanobacterium <i>Synechococcus</i> sp. IU 625

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Effect of Thallium on the Growth of Anacystis nidulans and Chlamydomonas reinhardtii

Cited by 12 publications

References 11 publications

Temperature-induced activation of freshwater Cyanophage AS-1 prophage

Temperature-induced activation of freshwater Cyanophage AS-1 prophage

Diversity of algae in a thallium and other heavy metals-polluted environment

Physiological effects of nickel chloride on the freshwater cyanobacterium &lt;i&gt;Synechococcus&lt;/i&gt; sp. IU 625

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Physiological effects of nickel chloride on the freshwater cyanobacterium <i>Synechococcus</i> sp. IU 625