Results 61 to 70 of about 10,362 (217)

PHOTOSYNTHESIS AND PHOTOTAXIS IN ULVA LACTUCA GAMETES

The Biological Bulletin, 1953
1. Fruiting margins of Ulva lactuca thallus are characterized by a higher content of carotenoids, as well as by higher respiratory and lower photosynthetic activity, than the corresponding vegetative thallus. Photosynthesis in the male margin was also characterized by a longer induction period than was observed in the vegetative thallus by the ...
F. T. HAXO, K. A. CLENDENNING
openaire   +2 more sources

Carbon and nitrogen contents depends on macroalgal species, their tissue section, and development stage

Phycological Research, Volume 74, Issue 2, Page 175-187, April 2026.
SUMMARY Assessing the potential for macroalgae to function as a carbon sink (blue carbon) and nitrogen (N) assimilation is under intensive investigation. The content of elemental carbon (C) and N in macroalgae is the best indicator of their potential; however, with respect to the thallus, C and N content varies in space and time.
Yoichi Sato, Daisuke Saito, Eri Inomata, Atsuko Tanaka, Gregory N. Nishihara   +4 more
wiley   +1 more source

Ulva spp (Ulva intestinalis, U. fasciata, U. lactuca, and U. rigida) composition and abiotic environmental factors [PDF]

BIO Web of Conferences
Seaweed, including various species of Ulva (e.g., Ulva intestinalis, U. fasciata, U. lactuca, and U. rigida), is essential for maintaining the balance of aquatic ecosystems. These algae are found worldwide and have a high growth rate in diverse habitats.
Soufi Jaouad, El Hammoudani Yahya, Haboubi Khadija, Hanafi Issam, Dimane Fouad   +4 more
doaj   +1 more source

Antioxidative, cytotoxic, and anti-metastatic potentials of Laurencia obtusa and Ulva lactuca seaweeds

Asian Pacific Journal of Tropical Biomedicine, 2021
Objective: To investigate the antioxidant and cytotoxic properties of the most active extracts from Ulva lactuca and Laurencia obtusa against colon and cervical cancer cell lines. Methods: The antioxidant radical scavenging activity of the algal extracts
Reem Al Monla, Yahya Salma, Achraf Kouzayha, Hala Gali-Muhtasib, Zeina Dassouki, Hiba Mawlawi   +5 more
doaj   +1 more source

On the Efficacy and Ecotoxicity of Antifouling Biocides Lethal and Sublethal Effects on Target and Non-target Organisms [PDF]

, 2013
From an environmental perspective, there is a need to reduce the amount of biocides from antifouling paints in the marine ecosystem as these biocides can exert a negative effect on the marine life. One way to do this is to optimize the use of biocides in
Wendt, Ida
core   +1 more source

Rapid toxicity assessment of six antifouling booster biocides using a microplate-based chlorophyll fluorescence in Undaria pinnatifida gametophytes [PDF]

, 2020
Biocides of antifouling agents can cause problems in marine ecosystems by damaging to non-target algal species. Aquatic bioassays are important means of assessing the quality of water containing mixtures of contaminants and of providing a safety standard
Choi, Soyeon, Depuydt, Stephen, Han, Taejun, Lee, Hojun, Park, Jihae   +4 more
core   +2 more sources

Evaluation of hydrogel formulated with seaweed extract (Ulva lactuca) for incised wound healing in white rats (Rattus norvegicus)

Jurnal Teknologi Laboratorium
Skin, as the largest organ in the human and animal body, serves as the main protection against various external factors such as sharp objects, extreme temperatures, chemicals, or physical trauma.
Stephanie Taniwan, Refi Ikhtiari, Stephanie Taniwan, Fiska Maya Wardhani   +3 more
doaj   +1 more source

In vitro exposure of Ulva lactuca Linnaeus (Chlorophyta) to gasoline: biochemical and morphological alterations [PDF]

, 2016
Refined fuels have considerable share of pollution of marine ecosystems. Gasoline is one of the most consumed fuel worldwide, but its effects on marine benthic primary producers are poorly investigated.
Bauer, Cláudia M., Bouzon, Zenilda Laurita, Costa, Christopher, Kreusch, Marianne, Maraschin, Marcelo, Oliveira, Eva Regina de, Pereira, Débora Tomazi, Pilatti, Fernanda Kokowicz, Ramlov, Fernanda, Rocha, Miguel, Schmidt, Eder Carlos   +10 more
core   +1 more source

Microbial regulation of global macroalgal blooms (green tides): From holobiont interactions to bloom dynamics and biogeochemistry

Limnology and Oceanography Letters, Volume 11, Issue 2, March 2026.
Abstract Green tides caused by Ulva species have become one of the most serious marine ecological disasters, now impacting many coastal nations around the world. Although climatic and environmental drivers of these macroalgal blooms are well recognized, growing evidence identifies Ulva‐associated microbiota as potential pivotal regulators of bloom ...
Zhangyi Xia, Zenghu Zhang, Jiulong Zhao, Xiaojie Wang, Shanli Mou, Nianzhi Jiao, Yongyu Zhang   +6 more
wiley   +1 more source

Bioactive peptide production and determination of functional properties using crude water extracts of Ulva lactuca (Chlorophyta) and Sargassum crassifolium (Phaeophyceae) collected from Sri Lanka

Applied Phycology, 2022
Bioactive peptides of marine macroalgae consist of various functional properties. Ulva lactuca and Sargassum crassifolium are economically important, abundant green and brown macroalgae species in Sri Lanka that are rich in bioactive and functional ...
C.S. Hamit, K.C. Nam, E.D.N.S. Abeyrathne   +2 more
doaj   +1 more source