Picocystis salinarum (Prasinophyceae, Chlorophyta) en las Salinas de Chilca, Lima, primer registro para el Perú

Delgado, Ronald Tarazona; Terreros, Haydeé Montoya; Astocondor, Mauro Mariano; Huatuco, Egma Mayta

doi:10.22497/arnaldoa.242.24208

Cited by 8 publications

(1 citation statement)

References 9 publications

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“…Previous studies have described this strain, a close relative to Picocystis salinarum (1), as a major primary producer in the lake (2). Members of the genus Picocystis have also been cultivated from East Africa (3, 4), Inner Mongolia, China (5), and, more recently, Peru (6). Despite its role as a primary producer and its global distribution, nothing is known of its genomic potential.…”

Section: Announcementmentioning

confidence: 99%

Draft Genome Sequence of Picocystis sp. Strain ML, Cultivated from Mono Lake, California

Junkins

Stamps

Corsetti

et al. 2019

Microbiol Resour Announc

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Section: Announcementmentioning

confidence: 99%

Draft Genome Sequence of Picocystis sp. Strain ML, Cultivated from Mono Lake, California

Junkins

Stamps

Corsetti

et al. 2019

Microbiol Resour Announc

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Phytoplankton in extreme environments: importance and consequences of habitat permanency

Padisák

Naselli-Flores

2020

Hydrobiologia

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There is hardly any sunshine exposed surface on this Earth, be it water or terrain, which would not support some biota. Still, many habitats offer harsh conditions requiring specialized physiological adaptations to survive. These environments are referred to as extremes; often inhabited by extremophilic organisms. In this review, characteristic species and assemblage properties of phytoplankton inhabiting extreme environments (especially lakes and pools where planktic life is potentially possible and independently of their origin) in terms of alkalinity, acidity, DOC, salinity, temperature, light and mixing regime will be outlined. Lakes characterized by more than a single extreme are common (e.g. saline + alkaline; acidic + high DOC + high metal content + low light). At the edge of extremes (e.g. pH of 1; salinity over ~ 100–150 g l−1) single species with appropriate physiological adaptation are selected and the phytoplankton is often dominated by a single species (monodominant) setting compositional diversity to zero. Under less extreme conditions permanent equilibria may persist; in many cases over several years in contrast to „average” lakes where equilibria are rare and ephemeral. Food webs depending on „extreme phytoplankton” are often atypical for example because the microbial loop is of prior importance or because birds are top predators.

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Growth response of the picoplanktic Picocystis salinarum and the microplanktic Limnospira (Arthrospira) fusiformis strains from Lake Nakuru (Kenya) to rapidly changing environmental conditions

Pálmai,

Szabó,

Lengyel

et al. 2023

Hydrobiologia

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The East African soda lakes are known worldwide for their huge populations of lesser flamingos. Their phytoplankton community is often dominated by the cyanobacterium Limnospira fusiformis, the main food of lesser flamingos. In the early 2010s, the population of the cyanobacterium collapsed and the picoplanktic green alga Picocystis salinarum became dominant in Lake Nakuru. Consequently, lesser flamingos had to migrate to other lakes in search of food. To establish the reasons for the success of P. salinarum, photosynthesis measurements have been performed on monoalgal cultures of both species. The examined environmental variables (temperature, light intensity) were not responsible for the dominance of P. salinarum either alone or in their any combination. Moreover, photosynthetic activity of the cyanobacterium was higher by an order of magnitude during all light and temperature treatments. Co-cultivation of L. fusiformis and P. salinarum in a chemostat revealed that a possible reason for the Limnospira replacement can be a rapid and remarkable increase of conductivity, as P. salinarum showed higher level of tolerance to this rapid change. Shortly after returning to the initial conductivity levels, the population of L. fusiformis recovered quickly.

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Picocystis salinarum (Prasinophyceae, Chlorophyta) en las Salinas de Chilca, Lima, primer registro para el Perú

Cited by 8 publications

References 9 publications

Draft Genome Sequence of Picocystis sp. Strain ML, Cultivated from Mono Lake, California

Draft Genome Sequence of Picocystis sp. Strain ML, Cultivated from Mono Lake, California

Phytoplankton in extreme environments: importance and consequences of habitat permanency

Growth response of the picoplanktic Picocystis salinarum and the microplanktic Limnospira (Arthrospira) fusiformis strains from Lake Nakuru (Kenya) to rapidly changing environmental conditions

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