Adaption of Ulva pertusa to multiple-contamination of heavy metals and nutrients: Biological mechanism of outbreak of Ulva sp. green tide. Issue 1 (15th December 2017)

• Record Type: Journal Article
• Authors: Ge, Changzi; Yu, Xiru; Kan, Manman; Qu, Chunfeng
• Is Part Of: Marine pollution bulletin. Volume 125:Issue 1/2(2017)
• Page Start: 250
• Page End: 253
• Publication Date: 2017-12-15
• Subjects: Multiple-contamination -- pH variation -- Pigment content -- SOD activity -- Ulva pertusa; Marine pollution -- Periodicals; Marine Biology -- Periodicals; Water Pollution -- Periodicals; Mer -- Pollution -- Périodiques; Publications périodiques; Pollution des mers; Lutte antipollution; Electronic journals; 363.7394
• DOI: 10.1016/j.marpolbul.2017.08.025
• Languages: English
• ISSNs: 0025-326X

Abstract

Abstract: The multiple-contamination of heavy metals and nutrients worsens increasingly and Ulva sp . green tide occurs almost simultaneously. To reveal the biological mechanism for outbreak of the green tide, Ulva pertusa was exposed to seven-day-multiple-contamination. The relation between pH variation ( V pH ), Chl a content, ratio of ( Chl a content)/( Chl b content) ( R chla / chlb ), SOD activity of U. pertusa ( A SOD ) and contamination concentration is V pH = 1.72 ± 0.38 + 1.68 ± 0.72 × 10 − 4 × C ammonia 2 (p < 0.05), C chla = 0.88± 0.09 − 0.01± 0.00 × C Cd (p < 0.05), R chla / chlb = 0.72 ± 0.04 − 0.35 ± 0.08 × 10 − 4 × C Cd 2 (p < 0.05), and A SOD = 25.64 ± 2.35 − 0.41 ± 0.09 × 10 − 2 × C Zn 2 + 0.54 ± 0.10 × C Zn (p < 0.05), respectively. C ammonia, C Cd and C Zn is concentration of ammonia, Cd 2 + and Zn 2 +, respectively. Comparing the contamination concentrations of seawaters where Ulva sp. green tide occurred and the contamination concentrations set in the present work, U. pertusa can adapt to multiple-contaminations in these waters. Thus, the adaption to multiple-contamination may be one biological mechanism for the outbreak of Ulva sp . green tide. Highlights: Physiology of Ulva pertusa can't be inhibited by contaminations in the Yellow Sea. Ulva pertusa has ability to multiple-contamination of nutrients and heavy metals. Adaptation to multiple-contamination is one biological mechanism for green tide.