荧光原位杂交技术和流式细胞仪用于环境样品中产毒及非产毒微囊藻的定量监测 [PDF]
, 2010 全球范围内,高频次、大范围暴发的蓝藻水华对淡水水体环境造成严重影响.微囊藻因其在生长特别是衰亡过程中向水体释放微囊藻毒素而威胁人类健康.因此,分析其产毒株及非产毒株在环境样品中的组成,建立产毒蓝藻的预报及评价体系显得极为重要.本文采用荧光原位杂交技术结合流式细胞技术实现对环境样品中产毒藻株的鉴别与定量.针对目标基因mcyA设计的、以地高辛标记的双链DNA探针可有效应用于产毒微囊藻FACHB905和PCC7806的鉴别.分别对来自滇池、太湖和关桥的11个样品进行分析显示 ...
宋立荣, 甘南琴, 郑凌凌, 黄群
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Phylogenies of Microcystin-Producing Cyanobacteria in the Lower Laurentian Great Lakes Suggest Extensive Genetic Connectivity [PDF]
, 2014 Lake St. Clair is the smallest lake in the Laurentian Great Lakes system. MODIS satellite imagery suggests that high algal biomass events have occurred annually along the southern shore during late summer.
Bullerjahn, George S. +5 more
core +6 more sources
Use of remote sensing and molecular markers to detect toxic cyanobacterial hyperscum crust: A case study on Lake Hartbeespoort, South Africa [PDF]
, 2015 In this study, we monitored the formation of cyanobacterial hyperscum and crust formation in Lake Hartbeespoort using satellite images and ground monitoring.
Botha, AM, Oberholster, PJ
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Associations among Human-Associated Fecal Contamination, Microcystis aeruginosa, and Microcystin at Lake Erie Beaches [PDF]
, 2015 Lake Erie beaches exhibit impaired water quality due to fecal contamination and cyanobacterial blooms, though few studies address potential relationships between these two public health hazards.
Chang Soo Lee +4 more
core +3 more sources
Genetic diversity and microcystin production by Anabaena in the Gulf of Finland, Baltic Sea [PDF]
, 2008 Syanobakteerit (sinilevät) ovat olleet Itämeressä koko nykymuotoisen Itämeren ajan, sillä paleolimnologiset todisteet niiden olemassaolosta Itämeren alueella ovat noin 7000 vuoden takaa.
Halinen, Katrianna
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BMC Evolutionary Biology, 2009 Background The water-bloom-forming cyanobacterium Microcystis aeruginosa is a known producer of various kinds of toxic and bioactive chemicals. Of these, hepatotoxic cyclic heptapeptides microcystins have been studied most intensively due to increasing ...
Kasai Fumie +3 more
doaj +1 more source
Diversidade de genótipos produtores de microcistinas em linhagens brasileiras de Microcystis (Cyanobacteria) [PDF]
Microcystis Kützing ex Lemmermann is among the genera of cyanobacteria often associated to toxic blooms with the release of microcystins. A gene cluster codes for microcystin synthetases, which are involved in the biosynthesis of this toxin.
BITTENCOURT-OLIVEIRA, MC +2 more
core +1 more source
Convergent evolution of [D-Leucine(1)] microcystin-LR in taxonomically disparate cyanobacteria [PDF]
, 2013 BACKGROUND: Many important toxins and antibiotics are produced by non-ribosomal biosynthetic pathways. Microcystins are a chemically diverse family of potent peptide toxins and the end-products of a hybrid NRPS and PKS secondary metabolic pathway.
Fewer, David Peter +9 more
core +4 more sources
La "Paradoja V" de Francisco Sánchez de las Brozas: edición y traducción [PDF]
, 1995 En la filosofía de Aristóteles la virtud ética es un medio entre dos vicios. Francisco Sánchez de las Brozas sostiene en el "Paradoxon V" que ese esquema trinitario de Aristóteles sobre las virtudes y los vicios es falso, pues cada virtud tiene más de un
Mañas Núñez, Manuel
core +1 more source
Use of PCR based technologies for risk assessment of a winter cyanobacterial bloom in Lake Midmar, South Africa. [PDF]
, 2010 Toxic freshwater cyanobacterial blooms are potential health hazards in water supply reservoirs and therefore predicting bloom events is an important goal of monitoring fresh water programmes.
Botha, AM, Oberholster, PJ
core +2 more sources