Effects of iron on growth and reflectance spectrum of the bloom-forming cyanobacterium Microcystis viridis

doi:10.1111/pre.12100

	Effects of iron on growth and reflectance spectrum of the bloom-forming cyanobacterium Microcystis viridis
	Chi, Guangyu; Huang, Bin; Ma, Jian; Shi, Yi; Chen, Xin
刊名	PHYCOLOGICAL RESEARCH
	2015-10-01
卷号	63 期号:4 页码:265-273
关键词	Carotenoid Cellular Iron Chlorophyll a Phycocyanin Remote Sensing
ISSN号	1322-0829
DOI	10.1111/pre.12100
英文摘要	Iron is an important factor in algal blooms because it is involved in cyanobacterial pigment biosynthesis and therefore has the ability to influence the pigment status of algal cells. This role in pigment biosynthesis offers the opportunity for rapid monitoring of iron availability to cyanobacteria through spectral reflectance characterization. In the present study, the freshwater cyanobacterium Microcystis viridis was cultured with different levels of iron. Cell density, cellular content of iron and photosynthetic pigments, and spectral reflectivity of M.viridis were determined daily during the course of the culture experiment. The results showed that at the lowest iron concentration (0.01M) the growth of M.viridis was seriously limited, and the maximal cell density was only approximately 6.4% of the density observed with an iron concentration of 18M. Iron availability dramatically affected chlorophyll a, carotenoid and phycocyanin content, with the greatest impact on chlorophyll a. The iron-induced changes in content and ratios of pigments were detectable through spectral reflectance. Eleven spectral indices previously developed for the estimation of concentrations and/or ratios of pigments and a newly proposed chlorophyll a/phycocyanin index were found to be suitable for generating sensitive regression models between cellular iron content and spectral parameters. The comprehensive application of key sensitive spectral indices and regression equations should help to support monitoring and diagnosis of iron availability to cyanobacteria via remote sensing.
WOS研究方向	Marine & Freshwater Biology
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000363663000003
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/122253]
专题	中国科学院沈阳应用生态研究所
通讯作者	Chen, Xin
作者单位	Chinese Acad Sci, Inst Appl Ecol, Key Lab Pollut Ecol & Environm Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Chi, Guangyu,Huang, Bin,Ma, Jian,et al. Effects of iron on growth and reflectance spectrum of the bloom-forming cyanobacterium Microcystis viridis[J]. PHYCOLOGICAL RESEARCH,2015,63(4):265-273.
APA	Chi, Guangyu,Huang, Bin,Ma, Jian,Shi, Yi,&Chen, Xin.(2015).Effects of iron on growth and reflectance spectrum of the bloom-forming cyanobacterium Microcystis viridis.PHYCOLOGICAL RESEARCH,63(4),265-273.
MLA	Chi, Guangyu,et al."Effects of iron on growth and reflectance spectrum of the bloom-forming cyanobacterium Microcystis viridis".PHYCOLOGICAL RESEARCH 63.4(2015):265-273.