Results 71 to 80 of about 37,975 (215)

A Group 6 LEA Protein Plays Key Roles in Tolerance to Water Deficit, and in Maintaining the Glassy State and Longevity of Seeds

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Plants have a wide range of adaptive and protective mechanisms to cope with dehydration. Central in these processes are the Late Embryogenesis Abundant (LEA) proteins, whose levels notably increase in response to dehydration during seed development and vegetative tissues.
Inti A. Arroyo‐Mosso   +8 more
wiley   +1 more source

Exploring the secrets of the three-dimensional architecture of phototrophic biofilms in caves [PDF]

open access: yesInternational Journal of Speleology, 2009
Caves with dim natural light, and lighted hypogean environments, have been found to host phototrophic microorganisms from varioustaxonomic groups.
Roldàn Monica   +1 more
doaj  

Checklist of green algae (Chlorophyta) for the state of Mato Grosso, Central Brazil [PDF]

open access: yesCheck List, 2013
A checklist of Chlorophyta species was made from a bibliographic database in order to contribute to the knowledge of the biodiversity of algae in the state of Mato Grosso.
Lilian Freitas, Simoni Loverde-Oliveira
doaj   +3 more sources

Zoospore diversity and sexual reproduction in the lichen‐forming genus Trebouxia: From neglected evidence to new facts

open access: yesPlant Biology, EarlyView.
This study clarifies the role of flagellate cells in four Trebouxia species. Using innovative techniques, we could distinguish between zoospores and gametes, providing the first detailed evidence of sex. Abstract Trebouxia is one of the most frequent genera of green microalgae that occur as photobionts in lichens.
E. Boccato   +4 more
wiley   +1 more source

Environmental Changes Produced by Cold-Water Outlets from Three Arkansas Reservoirs [PDF]

open access: yes, 1971
Water qualities of two natural streams (Buffalo and Kings Rivers), one new coId-tailwater (Beaver), and two old coId-tailwaters (Norfork and Bull Shoals) in northwestern Arkansas were studied from July 1965 through October 1968.
Hoffman, Carl E., Kilambi, Raj V.
core   +2 more sources

The Biodiversity and Geochemistry of Cryoconite Holes in Queen Maud Land, East Antarctica [PDF]

open access: yes, 2019
Cryoconite holes are oases of microbial diversity on ice surfaces. In contrast to the Arctic, where during the summer most cryoconite holes are ‘open’, in Continental Antarctica they are most often ‘lidded’ or completely frozen year-round.
Benning, Liane G.   +2 more
core   +1 more source

Are lichens biocompasses? Revisiting an old prediction using new techniques

open access: yesPlant Biology, EarlyView.
The equator‐facing portions of tree trunks receive direct sunlight and create restrictive microclimate conditions for lichens that orient preferentially towards the Earth's poles where trunks are shaded, indicating an optimal zone at the fine‐scale radial dimension.
B. B. S. Nunes   +4 more
wiley   +1 more source

Exploration of secondary metabolites from green algae as antimicrobial agents: A comprehensive review [PDF]

open access: yesBotanica Serbica
A number of advancements have been made in algal technology in different fields, such as medical, cosmetic, and pharmaceutical. Green algae (Chlorophyta) are a group of photosynthetic organisms which live in both aquatic and terrestrial environments ...
Elsa Shibu Sruthy   +1 more
doaj   +1 more source

Investigating the Automatic Classification of Algae Using Fusion of Spectral and Morphological Characteristics of Algae via Deep Residual Learning [PDF]

open access: yesarXiv, 2018
Under the impact of global climate changes and human activities, harmful algae blooms in surface waters have become a growing concern due to negative impacts on water related industries. Therefore, reliable and cost effective methods of quantifying the type and concentration of threshold levels of algae cells has become critical for ensuring successful
arxiv  

High Protistan Parasite Occurrence During Fall in a Warm, Low Sea Ice Year in the Eastern Bering Sea

open access: yesJournal of Eukaryotic Microbiology, Volume 72, Issue 4, July/August 2025.
ABSTRACT Marine protists in the eastern Bering Sea (EBS) are understudied despite being a critical component of the productive subarctic ecosystem. Climate change, and particularly the loss of sea ice, is rapidly altering this ecologically vulnerable and economically important system.
Tanika M. Ladd   +4 more
wiley   +1 more source

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