نتایج جستجو برای: marine alga

تعداد نتایج: 99295  

2008
V. M. Dembitsky S. Abu-Lafi L. O. Hanuš

Sulfolipids were originally discovered in diatom species, in 1966, by Morris Kates [1–3]. High levels of these sulfolipids have been found in the alga Ochromonas danica (Chrysophyceae, Chrysophyta) where they constitute 15% of total lipids and 3% of the dry weight of heterotrophically grown, stationary-phase cells [4,5]. More recently, sulfolipids have also been identified in more than 30 speci...

Journal: :Global change biology 2015
Shanwen Chen Kunshan Gao John Beardall

Both ocean acidification and viral infection bring about changes in marine phytoplankton physiological activities and community composition. However, little information is available on how the relationship between phytoplankton and viruses may be affected by ocean acidification and what impacts this might have on photosynthesis-driven marine biological CO2 pump. Here, we show that when the harm...

ژورنال: زیست شناسی دریا 2020
Abdolbaghian, Sodabeh , Jamili, Shahla , Manayi, Azadeh , Mashinchian Moradi, Ali ,

Skin aging is a biological process that is due to the reduction of collagen production and increase of multiple enzymes, including matrix metalloproteinase (MMPS), which degrade collagen. Chlorella vulgaris is a marine microalga and its beneficial effects on the skin make it a proper ingredient to be used in anti-aging products. In this study, the effect of C. vulgaris extract comparing to vita...

Journal: :دیرینه شناسی 0
امرالله صفری حامد عامری محمد رضا وزیری ابراهیم محمدی

the qom formation in southwest kashan in sanandaj-sirjan fore arc basin has a thickness of 190 meters and is composed of medium to thick and massive bedded limestone, marly limestone, sandy limestone, marl and coglomerates. study of these deposits led to recognition of nine microfacies related to a carbonate platform. the high presence of perforate foraminifera in most of the recognized microfa...

2010
Jennifer M. Sneed Georg Pohnert

Marine macroalgae are subjected to large numbers of bacteria in their environment. These bacteria have the potential to affect the health and ecology of algae in a variety of ways and can be both beneficial and harmful to the algae. Therefore, algae have likely evolved mechanisms to differentially regulate the growth of bacterial species. In this study, we examined the effects of the green alga...

Journal: :Plant physiology 1986
I Ahmad J A Hellebust

The green euryhaline flagellate Chlamydomonas pulsatilla Wollenweber, isolated from a coastal marine environment, was grown exponentially over the salinity range of 10 to 200% artificial seawater (ASW). The cellular volume and aqueous space of the alga, measured by [(14)C] mannitol and (3)H(2)O tracer analyses of centrifuged cell pellets, ranged between 2.3 and 3.1 picoliters and between 1.5 an...

2001
Veijo Jormalainen Tuija Honkanen Anita Mäkinen Anne Hemmi Outi Vesakoski

Optimal feeding is often constrained by predation avoidance, which may direct feeding to take place on more sheltered, but less profitable, parts of the habitat. Though constrained, feeding preferences and/or digestive capabilities should coevolve with the energetic and nutritional needs of the animal. These needs, as well as risk taking for these goals, may differ between the sexes. We studied...

2016
Junbo Shim Eunyoung Shim Gwang Hoon Kim Jong Won Han Giuseppe C. Zuccarello

Copyright © 2016 The Korean Society of Phycology 167 http://e-algae.org pISSN: 1226-2617 eISSN: 2093-0860 Keeping house: evaluation of housekeeping genes for real-time PCR in the red alga, Bostrychia moritziana (Florideophyceae) Junbo Shim, Eunyoung Shim, Gwang Hoon Kim*, Jong Won Han and Giuseppe C. Zuccarello Department of Biology, Kongju National University, Kongju 32588, Korea National Mari...

Journal: :Proceedings of the National Academy of Sciences 2015

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