Combined Effects of Marine Heatwaves and Light Intensity on the Physiological, Transcriptomic, and Metabolomic Profiles of Undaria pinnatifida DOI Creative Commons
Hanmo Song, Yan Liu,

Qingli Gong

et al.

Plants, Journal Year: 2025, Volume and Issue: 14(10), P. 1419 - 1419

Published: May 9, 2025

Marine heatwaves (MHWs) are spreading across global oceanic regions with unprecedented intensity, frequency, and duration, often accompanied by changes in underwater light, thereby imposing multiple stressors on coastal macroalgae. In this study, the effects of MHW intensities (moderate: +3 °C; severe: +6 °C) light (normal: 90 μmol photons m−2 s−1; high: 270 s−1) cultivated Undaria pinnatifida were investigated through an integrated analysis physiological, transcriptomic, metabolomic responses. Under moderate conditions, U. exhibited enhanced growth photosynthetic performance, increased pigment content, improved electron transport, early activation antioxidant defenses. Following severe exposure, partial recovery some physiological traits was observed, while capacity, membrane integrity, energy metabolism remained impaired, oxidative damage not fully resolved. High stress further aggravated responses under both disrupting photoprotection weakening defense systems. These results suggest that exhibits adaptive capacity MHWs delayed incomplete MHWs. exacerbates responses, ultimately affecting yield quality.

Language: Английский

Assessment of the growth and quality of pepper seedlings under the combinations of daily light integral and nitrogen concentration DOI

Zhengnan Yan,

Xiuxiu Cao,

Lixue Bing

et al.

Horticulture Environment and Biotechnology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 15, 2025

Language: Английский

Citations

3
Seasonal Variation in the Biochemical Composition and Fatty Acid Profiles of the Red Alga Halymenia durvillei from Ngazidja (Comoros) DOI Creative Commons

Ahmed Radjabou Djoundi,

Michèle Morançais,

Aurélie Couzinet‐Mossion

et al.

Molecules, Journal Year: 2025, Volume and Issue: 30(6), P. 1232 - 1232

Published: March 10, 2025

The study of Comorian red alga Halymenia durvillei showed a significant biochemical composition with high ash and polysaccharide content the presence n-3 n-6 essential fatty acid molecules. Seasonal monitoring real change in depending on harvesting period. On an annual average basis, algae contained 35.59 ± 2.55% dw ashes, 0.7 0.19% soluble proteins, 0.27 0.02% total lipids, 35.09 6.14% polysaccharides. pigment was 130 µg/g R-phycoerythrin, 1.49 chlorophyll a, 0.09 carotenoids. most abundant identified palmitic (C16:0), which accounted for almost 43.33% acids. Oleic (C18:1n-9) unsaturated acid, at 11.58%. Linoleic (C18:2n-6) reported to be polyunsaturated durvillei. profile also characterized by arachidonic (C20:4n-6) eicosapentaenoic (C20:5n-3).

Language: Английский

Citations

1
Growth rate comparison of three Kappaphycus alvarezii colour strains cultivated using tubular netting and tie-tie methods in the waters of Ecuador DOI Creative Commons
Lenin Cáceres-Farías, Milton Montúfar-Romero, César Lodeiros

et al.

Journal of Applied Phycology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 20, 2025

Language: Английский

Citations

0
Combined Effects of Marine Heatwaves and Light Intensity on the Physiological, Transcriptomic, and Metabolomic Profiles of Undaria pinnatifida DOI Creative Commons
Hanmo Song, Yan Liu,

Qingli Gong

et al.

Plants, Journal Year: 2025, Volume and Issue: 14(10), P. 1419 - 1419

Published: May 9, 2025

Marine heatwaves (MHWs) are spreading across global oceanic regions with unprecedented intensity, frequency, and duration, often accompanied by changes in underwater light, thereby imposing multiple stressors on coastal macroalgae. In this study, the effects of MHW intensities (moderate: +3 °C; severe: +6 °C) light (normal: 90 μmol photons m−2 s−1; high: 270 s−1) cultivated Undaria pinnatifida were investigated through an integrated analysis physiological, transcriptomic, metabolomic responses. Under moderate conditions, U. exhibited enhanced growth photosynthetic performance, increased pigment content, improved electron transport, early activation antioxidant defenses. Following severe exposure, partial recovery some physiological traits was observed, while capacity, membrane integrity, energy metabolism remained impaired, oxidative damage not fully resolved. High stress further aggravated responses under both disrupting photoprotection weakening defense systems. These results suggest that exhibits adaptive capacity MHWs delayed incomplete MHWs. exacerbates responses, ultimately affecting yield quality.

Language: Английский

Citations

0