Isolation, purification, and identification of antialgal substances in green alga Ulva prolifera for antialgal activity against the common harmful red tide microalgae

2015 ◽  
Vol 23 (2) ◽  
pp. 1449-1459 ◽  
Author(s):  
Ying-ying Sun ◽  
Hui Wang ◽  
Gan-lin Guo ◽  
Yin-fang Pu ◽  
Bin-lun Yan ◽  
...  
Keyword(s):  
Green Alga ◽  
Red Tide ◽  
Ulva Prolifera ◽  
Antialgal Activity ◽  
Red Tide Microalgae ◽  
The Common ◽  
Antialgal Substances

Antialgal compounds with antialgal activity against the common red tide microalgae from a green algae Ulva pertusa

2018 ◽  
Vol 157 ◽  
pp. 61-66 ◽  
Author(s):  
Ying-ying Sun ◽  
Wen-jing Zhou ◽  
Hui Wang ◽  
Gan-lin Guo ◽  
Zhen-xia Su ◽  
...  
Keyword(s):  
Green Algae ◽  
Red Tide ◽  
Ulva Pertusa ◽  
Antialgal Activity ◽  
Red Tide Microalgae ◽  
The Common

Sesquiterpenoids with antialgal activity against the common red tide microalgae from marine macroalga Porphyra yezoensis

2018 ◽  
Vol 25 (8) ◽  
pp. 7844-7859 ◽  
Author(s):  
Ying-ying Sun ◽  
Jing-zeng Xing ◽  
Jian-shuo Zhang ◽  
Wen-jing Zhou ◽  
Yin-fang Pu
Keyword(s):  
Red Tide ◽  
Porphyra Yezoensis ◽  
Antialgal Activity ◽  
Red Tide Microalgae ◽  
The Common ◽  
Marine Macroalga

Growth Inhibition of Two Typical Red Tide Microalgae (Karenia mikimitoi and Alexandrium tamarense) by Antialgal Substances from Gracilaria lemaneiformis and its Isolation and Identification

2012 ◽  
Vol 610-613 ◽  
pp. 3-8
Author(s):  
Ying Ying Sun ◽  
Shen Zhen Xu ◽  
Jing Zhang ◽  
Bin Lun Yan
Keyword(s):  
Growth Inhibition ◽  
Red Tide ◽  
Inhibitory Effect ◽  
Alexandrium Tamarense ◽  
Gracilaria Lemaneiformis ◽  
Isolation And Identification ◽  
Liquid Liquid Extraction ◽  
Red Tide Microalgae ◽  
Antialgal Substances ◽  
Significant Growth Inhibition

A yellow-brown extract (GLME) was obtained by methanol extraction of powder from Gracilaria lemaneiformis. The methanol extract was further fractionated by liquid-liquid extraction and obtained the four fractions (F-Ⅰ, F-Ⅱ, F-Ⅲ and F-Ⅳ). Growth inhibition of two typical red tide microalgae (Karenia mikimitoi and Alexandrium tamarense) by those fractions and its isolated fractions were investigated. The results showed that crude extract had inhibitory activity against the growth of Karenia mikimitoi and Alexandrium tamarense. Among the four fractions, F-Ⅱ exhibited the strongest effect against the growth of the two red tide microalgae, and the inhibitory effect of Karenia mikimitoi and Alexandrium tamarense by F-Ⅱ at the concentration of 0.35 g/L was 48.8% and 46.7% in day 12, respectively. After additional isolation of F-II with five organic solvents (petroleum ether, petroleum ether:ethyl acetate=1:1, ethyl acetate, ethyl acetate:acetone=1:1 and acetone), the F- II was separated into five fractions of Ⅱ-A, Ⅱ-B, Ⅱ-C, Ⅱ-D and Ⅱ-E on silicon gel column, respectively. The eluant Ⅱ-B andⅡ-C showed the significant growth inhibition activities. The antialgal substances in eluant Ⅱ-B andⅡ-C are identified by comprehensive analysis of UV and HPLC-MS to be chlorogenic acid, hydroxybenzoic acid and vanillic acid. And they significantly inhibited the growth of Karenia mikimitoi and Alexandrium tamarense.

A Comprehensive Review of Secondary Metabolites with Antialgal Activity from Marine Macroalgae against Red Tide Microalgae

2019 ◽  
Vol 93 (sp1) ◽  
pp. 475 ◽  
Author(s):  
Yingying Sun ◽  
Shasha Dong ◽  
Wenjing Zhou ◽  
Lei Guo ◽  
Gan-Lin Guo ◽  
...  
Keyword(s):  
Secondary Metabolites ◽  
Red Tide ◽  
Marine Macroalgae ◽  
Comprehensive Review ◽  
Antialgal Activity ◽  
Red Tide Microalgae

scholarly journals EFFECTS OF UV-B RADIATION ON PROTEIN AND NUCLEIC ACID SYNTHESIS IN THREE SPECIES OF MARINE RED-TIDE MICROALGAE

2005 ◽  
Vol 29 (3) ◽  
pp. 505-509
Author(s):  
ZHANG Pei-Yu ◽  
◽  
TANG Xue-Xi ◽  
CAI Heng-Jiang ◽  
YU Juan ◽  
...  
Keyword(s):  
Nucleic Acid ◽  
Red Tide ◽  
Acid Synthesis ◽  
Nucleic Acid Synthesis ◽  
Red Tide Microalgae

scholarly journals Ulva prolifera green-tide outbreaks and their environmental impact in the Yellow Sea, China

2019 ◽  
Vol 6 (4) ◽  
pp. 825-838 ◽  
Author(s):  
Yongyu Zhang ◽  
Peimin He ◽  
Hongmei Li ◽  
Gang Li ◽  
Jihua Liu ◽  
...  
Keyword(s):  
Yellow Sea ◽  
Red Tide ◽  
Abiotic Factors ◽  
Management Strategies ◽  
Ulva Prolifera ◽  
The Yellow Sea ◽  
Green Tide ◽  
Biological Interactions ◽  
Green Tides ◽  
Carbon Cycles

Abstract The Ulva prolifera green tides in the Yellow Sea, China, which have been occurring since 2007, are a serious environmental problem attracting worldwide attention. Despite extensive research, the outbreak mechanisms have not been fully understood. Comprehensive analysis of anthropogenic and natural biotic and abiotic factors reveals that human activities, regional physicochemical conditions and algal physiological characteristics as well as ocean warming and biological interactions (with microorganism or other macroalgae) are closely related to the occurrence of green tides. Dynamics of these factors and their interactions could explain why green tides suddenly occurred in 2007 and decreased abruptly in 2017. Moreover, the consequence of green tides is serious. The decay of macroalgal biomass could result in hypoxia and acidification, possibly induce red tide and even have a long-lasting impact on coastal carbon cycles and the ecosystem. Accordingly, corresponding countermeasures have been proposed in our study for future reference in ecosystem management strategies and sustainable development policy.

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