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Photosynthetic physiology and stress-resistant biochemical properties reveal the invasive photo-adaptation strategy of marine green alga Codium fragile

文献类型：期刊论文

作者Huang, Bingxin1,2,3; Li, Boxi1; Wang, Xulei3,4; Rao, Liming1; Chen, Jie1; Dai, Yang1; Wang, Lichun1; Wang, Zhiying1; Ding, Lanping1,2,3
刊名ACTA OCEANOLOGICA SINICA
出版日期2025-06-01
卷号44期号:6页码:155-164
关键词Codium fragile invasive algae photo-adaptation photosynthesis
ISSN号0253-505X
DOI10.1007/s13131-024-2382-z
通讯作者Ding, Lanping(skydlp@tjnu.edu.cn)
英文摘要Biological invasions have become recognized as one of the greatest threats to ecosystems. Codium, a genus of invasive green algae, has frequent global outbreaks and damages local marine ecosystems. It is now generally accepted that light is one of the main factors affecting the luxuriant growth of macroalgae such as Codium. In this study, to investigate the invasive photo-adaptation strategy of Codium fragile, the photo-adaptation characteristics of C. fragile and Codium. cylindricum from the Nan'ao Island of China were compared and explored. The effect of light intensity on the photosynthetic properties of the two species was investigated: the maximum quantum yield of photosystem II (Fv/Fm) of C. fragile was significantly higher at low light intensity. At a light intensity of 90 mu mol/(m2s), maximum relative electron transport rate (rETRmax) of the thalli was maximum, and the minimum saturating irradiance (Ek) was significantly increased. The photosynthetic rate (alpha value) of thalli was highest at a light intensity of 30 mu mol/(m2s). The photochemical quenching (qP) was enhanced but non-photochemical quenching (NPQ) was reduced at high light intensities. As for C. cylindricum, the optimal photochemical efficiency of the thalli at low light intensity was higher. High light intensity significantly reduced the rETR of the thalli. At low light intensity, alpha was significantly higher, Ek was significantly lower, and NPQ was also significantly decreased. The response relationship between light acclimation and antioxidant capacity of the thalli of two species of Codium was investigated: there was no significant effect of light intensity variation on the total antioxidant capacity of C. fragile. In the case of C. cylindricum, the degree of membrane lipid peroxidation was significantly increased at low light intensity, and its antioxidant capacity was significantly reduced when the light intensity was too high or too low. It can be hypothesized that the self-protection ability of C. fragile may be stronger than that of C. cylindricum under low and high light intensities, which is closely related to the strong invasiveness of C. fragile.
WOS关键词SSP TOMENTOSOIDES CHLOROPHYTA ; NITROGEN ; GROWTH ; FLUORESCENCE ; MACROALGAE ; IRRADIANCE ; PARAMETERS ; EQUATIONS ; PATTERNS ; SYSTEMS
WOS研究方向Oceanography
语种英语
WOS记录号WOS:001567182100006
出版者SPRINGER
源URL[http://ir.qdio.ac.cn/handle/337002/203359]  
专题中国科学院海洋研究所
通讯作者Ding, Lanping
作者单位1.Tianjin Normal Univ, Coll Life Sci, Tianjin 300387, Peoples R China
2.Tianjin Key Lab Anim & Plant Resistance, Tianjin 300387, Peoples R China
3.Shantou Univ, Marine Biol Inst, Shantou 515063, Peoples R China
4.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
推荐引用方式
GB/T 7714		 Huang, Bingxin,Li, Boxi,Wang, Xulei,et al. Photosynthetic physiology and stress-resistant biochemical properties reveal the invasive photo-adaptation strategy of marine green alga Codium fragile[J]. ACTA OCEANOLOGICA SINICA,2025,44(6):155-164.
APA Huang, Bingxin.,Li, Boxi.,Wang, Xulei.,Rao, Liming.,Chen, Jie.,...&Ding, Lanping.(2025).Photosynthetic physiology and stress-resistant biochemical properties reveal the invasive photo-adaptation strategy of marine green alga Codium fragile.ACTA OCEANOLOGICA SINICA,44(6),155-164.
MLA Huang, Bingxin,et al."Photosynthetic physiology and stress-resistant biochemical properties reveal the invasive photo-adaptation strategy of marine green alga Codium fragile".ACTA OCEANOLOGICA SINICA 44.6(2025):155-164.

入库方式： OAI收割

来源：海洋研究所

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