Results 121 to 130 of about 1,479,215 (302)

Biosynthesis of C11 hydrocarbons in the brown alga: Ectocarpus siliculosus [PDF]

open access: yes, 2009
Sexual reproduction of Brown algae occurs with the help of pheromones, chemical messengers involved in mating coordination. They are released by female gametes in order to attract and/or induce release of male conspecifics.
Rui, F., Rui, Fabio
core  

New nine-membered ring diterpenes from the brown alga Dictyota prolificans

open access: yes, 1982
Five new diterpenes, related to 'dictyodial' (7), have been isolated from the brown alga Dictyota prolificans. The gross structures and, where possible, stereochemistry were solved by spectral methods and comparison of 13C n.m.r.
BN Ravi, RJ Wells
core   +1 more source

Addressing Water Scarcity in Agriculture: A Bibliometric Analysis of Hydrogel‐Based Strategies for Drought Resilience and Sustainable Water Management

open access: yesSustainable Development, EarlyView.
ABSTRACT Drought poses a significant threat to agricultural systems worldwide, exacerbating challenges to food security and sustainability. Hydrogels, superabsorbent polymers that can retain substantial amounts of water, have emerged as a promising solution to mitigate the adverse effects of drought. In this integrated bibliometric and narrative review,
Waqas Liaqat   +10 more
wiley   +1 more source

Interference tests with the pheromone system of the brown alga Cutleria multifida

open access: yes, 1980
Male gametes of the brown alga C. multifida (Smith) Grev. are attracted to sources which release the sex pheromone multifidene into seawater. In interference tests, the effect of additional pheromone or an analog was studied.
Boland, W.   +3 more
core   +1 more source

Sargassum Lung Syndrome: Air Flow Obstruction and Bronchial Inflammation Are Observed After Prolonged Exposure to Sargassum Gas Emissions in the Eastern Caribbean

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Sargassum inundation of Caribbean and American shorelines is a growing environmental hazard. Hydrogen sulfide (H2S) and ammonia (NH3) produced by decomposing Sargassum could be involved in airway obstruction and bronchial inflammation. The study was undertaken to evaluate the effects of exposure to H2S and NH3 gases emitted during Sargassum ...
Rishika Banydeen   +9 more
wiley   +1 more source

Supra and subgingival application of antiseptics or antibiotics during periodontal therapy

open access: yesPeriodontology 2000, EarlyView., 2023
Abstract Periodontal diseases (gingivitis and periodontitis) are characterized by inflammatory processes which arise as a result of disruption of the balance in the oral ecosystem. According to the current S3 level clinical practice guidelines, therapy of patients with periodontitis involves a stepwise approach that includes the control of the patient ...
Elena Figuero   +5 more
wiley   +1 more source

Two epimeric, irregular diterpenoid toluquinols from the brown alga Cystoseira stricta

open access: yes, 1989
Two novel, irregular tetraprenyltoluquinols have been isolated from the brown alga Cystoseira stricta and characterized by spectral ...
Neri P   +4 more
core  

Identification and Bioactivity of 3-epi-Xestoaminol C Isolated from the New Zealand Brown Alga Xiphophora chondrophylla

open access: yes, 2016
We report here the bioassay-guided isolation of a new 1-deoxysphingoid, 3-epi-xestoaminol C (1), isolated from the New Zealand brown alga Xiphophora chondrophylla. This is the first report of a 1-deoxysphingoid from a brown alga.
Nazmi H. Fadzilah (1786291)   +5 more
core   +1 more source

Context‐Dependent Effects of Beavers (Castor spp.) on Freshwater Pearl Mussels (Margaritifera margaritifera) in European Rivers 河狸对欧洲河流中的淡水珍珠贝 (Margaritifera margaritifera) 存在情境依赖性影响

open access: yesWildlife Letters, EarlyView.
The study explores how beavers (Castor spp.) affect endangered freshwater pearl mussels (Margaritifera margaritifera) in European rivers. Beaver dams can harm small, fragmented mussel populations by reducing flow, increasing sediment, and potentially limiting host fish movement, while larger populations may benefit from improved bed stability and ...
Louise Lavictoire   +2 more
wiley   +1 more source

Fear generalization, cross‐sensitization and behavioural responses to multiple dangers in a freshwater snail

open access: yesJournal of Animal Ecology, EarlyView.
We show that juvenile exposure to a danger can not only prime individuals to be more responsive to that same danger later in life but also to an ostensibly unrelated danger. These patterns of behavioural cross‐sensitization can have important ecological implications for how animals respond to multiple and novel stressors. Abstract Behavioural responses
Janice L. Yan   +3 more
wiley   +1 more source

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