Results 31 to 40 of about 62,550 (298)

High Growth Rate of Diatoms Explained by Reduced Carbon Requirement and Low Energy Cost of Silica Deposition

open access: yesMicrobiology Spectrum, 2023
The rapid growth of diatoms makes them one of the most pervasive and productive types of plankton in the world’s ocean, but the physiological basis for their high growth rates remains poorly understood.
Keisuke Inomura   +5 more
doaj   +1 more source

Herbicide effects on freshwater benthic diatoms: Induction of nucleus alterations and silica cell wall abnormalities [PDF]

open access: yes, 2008
Benthic diatoms are well known bio-indicators of river pollution by nutrients (nitrogen and phosphorus). Biological indexes, based on diatom sensitivity for non-toxic pollution, have been developed to assess the water quality.Nevertheless, they are not ...
Silvestre, Jérôme   +4 more
core   +1 more source

Diversity and abundance of diatoms (Bacillariophyceae) in sediments of the south coast of Iran [PDF]

open access: yesبوم‌شناسی آبزیان, 2018
In this stud, the diversity and abundance of benthic diatoms were evaluated in 9 stations located in Persian Gulf (Sirik) and Oman Sea (Gwatar, Abshirinkon) in winter and spring of 1394 -1395.
Gilan Attaran Fariman   +2 more
doaj  

New records of the marine pennate diatoms in Korea

open access: yesJournal of Ecology and Environment, 2014
A study on indigenous diatoms was carried out at 49 sites from November 2008 to December 2012 in the marine and brackish plankton and benthic ecosystem in Korea.
Joon Sang Park   +3 more
doaj   +1 more source

Sensitivity of freshwater periphytic diatoms to agricultural herbicides [PDF]

open access: yes, 2009
The biomonitoring of pesticide pollution in streams and rivers using algae such as diatoms remains difficult. The responses of diatomcommunities to toxic stress in streamwater are disturbed by the variations of environmental parameters.
Silvestre, Jérôme   +8 more
core   +1 more source

Copper in Diatoms [PDF]

open access: yesNature, 1947
WORK undertaken in this Laboratory suggests that certain species of diatoms, which are the normal constituents of the slime film which forms upon a submerged surface in marine waters, contain copper, far in excess of the amount usually considered lethal for unicellular Algae.
openaire   +2 more sources

A free ride: Diatoms attached on motile diatoms

open access: yes, 2021
Periphytic diatoms are known to attach to a wide variety of submerged substrates. This review deals with a very particular substrate that consists of large benthic and motile diatoms. It is about passively motile epidiatomic diatoms. Their mode of attachment is similar to that of epiphytes on macrophytes, so they are also referred to as epiphytes, with
Roubeix, Vincent, Laviale, Martin
openaire   +3 more sources

An improved coverslip method for investigating epipelic diatoms

open access: yes, 2010
The traditional coverslip method for harvesting motile diatoms was improved and standardized by determining optimum times for diatom harvesting; by using opaque Petri dish bases as experimental chambers; and by preparing coverslips by burning.
Yang, Hong   +5 more
core   +1 more source

DILSTORE software for ecological status assessment of lakes based on benthic diatoms [PDF]

open access: yes, 2009
Until recently, only few diatom indices were developed for monitoring littoral zones of lakes. The available indices are not applicable for all lake types because species lists and environmental constraints’ ranges are different.
Stenger-Kovács, Csilla   +7 more
core   +2 more sources

The Central Carbon and Energy Metabolism of Marine Diatoms

open access: yesMetabolites, 2013
Diatoms are heterokont algae derived from a secondary symbiotic event in which a eukaryotic host cell acquired an eukaryotic red alga as plastid. The multiple endosymbiosis and horizontal gene transfer processes provide diatoms unusual opportunities for ...
Adriano Nunes-Nesi   +2 more
doaj   +1 more source

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