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Harmful Algae 2022 Aug 2;117:102285. Epub 2022 Jul 2.

UMR 7245 Molécules de Communication et Adaptations des Microorganismes (MCAM), Muséum National d'Histoire Naturelle, CNRS, CP 39, 57 rue Cuvier, Paris, 75005, France. Electronic address:

Cyanobacterial blooms can modify the dynamic of aquatic ecosystems and have harmful consequences for human activities. Moreover, cyanobacteria can produce a variety of cyanotoxins, including microcystins, but little is known about the role of environmental factors on the prevalence of microcystin producers in the cyanobacterial bloom dynamics. This study aimed to better understand the success of Planktothrix in various environments by unveiling the variety of strategies governing cell responses to sudden changes in light intensity and temperature. Read More

Harmful Algae 2022 Aug 14;117:102274. Epub 2022 Jun 14.

CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China. Electronic address:

Since > 91% of dinoflagellates are proven auxotrophs of vitamin B and the cobalamin synthetase W (CobW) is a key gene involved in vitamin B synthesis pathway, a number of CobW domain-containing (CBWD) genes in dinoflagellates (DinoCBWDs) were surprisedly found from our transcriptomic and meta-transcriptomic studies. A total of 88 DinoCBWD genes were identified from the genomes and transcriptomes of four dinoflagellates, with five being cloned for full-lengths and characterized using the cosmopolitan and ecologically-important dinoflagellates Karlodinium veneficum and Scrippsiella trochoidea (synonym of Scrippsiella acuminata). DinoCBWDs were verified being irrelevant to vitamin B biosynthesis due to their transcriptions irresponsive to vitamin B levels and their phylogenetic positions. Read More

Harmful Algae 2022 Aug 2;117:102267. Epub 2022 Jun 2.

Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China; Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang 222005, China. Electronic address:

Phosphorus (P) is one of the major macronutrients necessary for phytoplankton growth. In some parts of the ocean, however, P is frequently scarce, hence, there is limited phytoplankton growth. To cope with P deficiency, phytoplankton evolved a variety of strategies, including, utilization of different P sources. Read More

Gut 2022 Aug 9. Epub 2022 Aug 9.

Department of Endocrinology and Metabolism, University of Verona Department of Medicine, Verona, Italy.