The occurrence and levels of cyanotoxin nodularin from Nodularia spumigena in the alkaline and salty Lake Burdur, Turkey

Kocasari, Fatma; Gülle, İskender; Kocasari, Sukru; Pekkaya, Selçuk; Mor, Firdevs

doi:10.4081/jlimnol.2015.1097

Cited by 3 publications

(2 citation statements)

References 29 publications

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“…Nodularin (NOD) hepatotoxins are mostly known from the Baltic Sea. However, recently nodularin was found also in aquatic ecosystems in Turkey Sahindokuyucu Kocasari et al, 2015). Moreover, Nodularia spumigena Mertens ex Bornet & Flahault, a NOD-producer, was recently observed not only in brackish waters but also in freshwater lakes (Akcaalan et al, 2009).…”

Section: Occurrence Of Cyanobacteria and Cyanotoxins And Methods Formentioning

confidence: 99%

Toxic cyanobacteria and cyanotoxins in European waters – recent progress achieved through the CYANOCOST Action and challenges for further research

et al. 2017

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This review aims to summarise the outcomes of some recent European research concerning toxic cyanobacteria and cyanotoxins, with an emphasis on developments within the framework of the CYANOCOST Action: COST Action ES1105, Cyanobacterial Blooms and Toxins in Water Resources: Occurrence, Impacts and Management. Highlights of the Action include phycological and ecological studies, development of advanced techniques for cyanotoxin analysis, elucidation of cyanotoxin modes of action, management techniques to reduce cyanobacterial mass development, and research on methods and practices for cyanotoxin removal during drinking water treatment. The authors have identified a number of gaps in knowledge. Proposed directions for future research on toxic cyanobacteria and cyanotoxins are also discussed.

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Section: Occurrence Of Cyanobacteria and Cyanotoxins And Methods Formentioning

confidence: 99%

Toxic cyanobacteria and cyanotoxins in European waters – recent progress achieved through the CYANOCOST Action and challenges for further research

et al. 2017

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“…Nodularia spumigena, a cyanobacteria species account for cyanotoxin nodularin, has peaked in recent years and the lake has been plagued by excessive algal blooms in the shoreline (Figure 4). When Kocasarı et al [25] first reported the algal bloom event in 2015, there were no apparent fish kills in the Lake. However, it was noted by one of the authors (İskender Gülle, pers.…”

Section: Threatsmentioning

confidence: 99%

A Reassessment of the Conservation Status of Endangered Aphanius sureyanus (Neu, 1937) (Cyprinodontiformes:Aphaniidae) and the First Data on its Reproduction in Captivity

Yoğurtçuoğlu¹

2018

HJBC

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A phanius sureyanus (Burdur Dişlisazancığı) Türkiye'nin güneydoğusunda yer alan Burdur Gölü'ne endemiktir. Bu çalışmada, eldeki veriler ve son gözlemlere dayanarak türün güncel koruma durumu kısaca değerlendirilip sunulmuştur. Aphanius sureyanus IUCN tarafından yayınlanan Tehlike Altındaki Türlerin Kırmızı Listesi'nde "Tehlike Altında" (EN) kategorisinde değerlendirilmektedir. Tür üzerindeki başlıca tehditlerin Burdur Gölü'nün kuruması ve tuzluluğun ve kirliliğin artması olduğu öne sürülmektedir. Elde edilen bulgular da, geri dönüşü olmayan bir habitat kaybı ve popülasyon düşüşüne doğru süren bir eğilime işaret etmektedir. Dolayısıyla, türün yeniden değerlendirilip Kritik Düzeyde Tehlike Altında (CR) kategorisine alınması önerilmektedir. Türün esaret altındaki bazı üreme parametreleri de ilk defa gösterilmiştir. Dişiler günde dört ile altı adet arası yapışkan yumurtayı yosun şeklindeki yün yumaklara bırakmaktadır. Bırakılan yumurtaların çapı 1.25 ile 1.50 mm aralığında olup ortalama ±ss 1.37 ±0.09 mm olarak belirlenmiştir.

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Toxicity at the Edge of Life: A Review on Cyanobacterial Toxins from Extreme Environments

2017

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Cyanotoxins are secondary metabolites produced by cyanobacteria, of varied chemical nature and toxic effects. Although cyanobacteria thrive in all kinds of ecosystems on Earth even under very harsh conditions, current knowledge on cyanotoxin distribution is almost restricted to freshwaters from temperate latitudes. In this review, we bring to the forefront the presence of cyanotoxins in extreme environments. Cyanotoxins have been reported especially in polar deserts (both from the Arctic and Antarctica) and alkaline lakes, but also in hot deserts, hypersaline environments, and hot springs. Cyanotoxins detected in these ecosystems include neurotoxins—anatoxin-a, anatoxin-a (S), paralytic shellfish toxins, β-methylaminopropionic acid, N-(2-aminoethyl) glycine and 2,4-diaminobutyric acid- and hepatotoxins –cylindrospermopsins, microcystins and nodularins—with microcystins being the most frequently reported. Toxin production there has been linked to at least eleven cyanobacterial genera yet only three of these (Arthrospira, Synechococcus and Oscillatoria) have been confirmed as producers in culture. Beyond a comprehensive analysis of cyanotoxin presence in each of the extreme environments, this review also identifies the main knowledge gaps to overcome (e.g., scarcity of isolates and –omics data, among others) toward an initial assessment of ecological and human health risks in these amazing ecosystems developing at the very edge of life.

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The occurrence and levels of cyanotoxin nodularin from Nodularia spumigena in the alkaline and salty Lake Burdur, Turkey

Abstract: The occurrence of cyanobacteria species Nodularia spumigena and its toxin nodularin were studied in Burdur Lake, a saline alkaline lake with endemic fauna and a

Cited by 3 publications

References 29 publications

Toxic cyanobacteria and cyanotoxins in European waters – recent progress achieved through the CYANOCOST Action and challenges for further research

Toxic cyanobacteria and cyanotoxins in European waters – recent progress achieved through the CYANOCOST Action and challenges for further research

A Reassessment of the Conservation Status of Endangered Aphanius sureyanus (Neu, 1937) (Cyprinodontiformes:Aphaniidae) and the First Data on its Reproduction in Captivity

Toxicity at the Edge of Life: A Review on Cyanobacterial Toxins from Extreme Environments

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