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Correction to:Proteases from the marine bacteria in the genus Pseudoalteromonas:diversity,characteristics,ecological roles,and application potentials

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Marine Life Science & Technology 2020年第4期2卷 456-457页

作者： Xiu-Lan Chen Yan Wang Peng Wang Yu-Zhong Zhang State Key Laboratory of Microbial Technology Shandong UniversityQingdao 266237China College of Marine Life Sciences Institute for Advanced Ocean StudyOcean University of ChinaQingdao 266003China Laboratory for Marine Biology and Biotechnology Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266373China

The original article can be found online.

关键词： Proteases Pseudoalteromonas Diversity Characteristics ecological roles Application potentials COLLAGENOLYTIC SERINE-PROTEASE SP-NOV. DEEP-SEA SP. NOV. EMENDED DESCRIPTION ORGANIC NITROGEN DESEASIN MCP-01 COMB. NOV SP SM9913 EXTRACELLULAR PROTEASES

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Genomic and transcriptomic dissection of Theionarchaea in marine ecosystem

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Science China(Life Sciences) 2022年第6期65卷 1222-1234页

作者： Mingwei Cai Changhai Duan Xinxu Zhang Jie Pan Yang Liu Cuijing Zhang Meng Li Archaeal Biology Center Shenzhen Key Laboratory of Marine Microbiome EngineeringInstitute for Advanced StudyShenzhen UniversityShenzhen 518060China SZU-HKUST Joint PhD Program in Marine Environmental Science Shenzhen UniversityShenzhen 518060China

Theionarchaea is a recently described archaeal class within the Euryarchaeota.While it is widely distributed in sediment ecosystems,little is known about its metabolic potential and ecological features.Here,we used metagenomics and metatranscriptomics to characterize 12 theionarchaeal metagenome-assembled genomes,which were further divided into two subgroups,from coastal mangrove sediments of China and seawater columns of the Yap Trench.Genomic analysis revealed that apart from the canonical sulfhydrogenase,Theionarchaea harbor genes encoding heliorhodopsin,group 4[NiFe]-hydrogenase,and flagellin,in which genes for heliorhodopsin and group 4[NiFe]-hydrogenase were transcribed in mangrove sediment.Further,the theionarchaeal substrate spectrum may be broader than previously reported as revealed by metagenomics and metatranscriptomics,and the potential carbon substrates include detrital proteins,hemicellulose,ethanol,and CO_(2).The genes for organic substrate metabolism(mainly detrital protein and amino acid metabolism genes)have relatively higher transcripts in the top sediment layers in mangrove wetlands.In addition,co-occurrence analysis suggested that the degradation of these organic compounds by Theionarchaea might be processed in syntrophy with fermenters(e.g.,Chloroflexi)and methanogens.Collectively,these observations expand the current knowledge of the metabolic potential of Theionarchaea,and shed light on the metabolic strategies and roles of these archaea in the marine ecosystems.

关键词： Theionarchaea metagenome metatranscriptome metabolic potentials ecological roles

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Gracilaria lemaneiformis Cultivation Practice and its ecological Role in Chinese Coastal Waters

Gracilaria lemaneiformis Cultivation Practice and its Ecolog...

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中国海洋湖沼学会藻类学分会第七届会员大会暨第十四次学术...

作者：杨宇峰费修绠暨南大学水生生物研究所中国科学院海洋研究所

Cultivation of Gracilaria lemaneiformis has developed along Chinese coast from the 1980s on.In 1988,Prof.Fei Xiugeng carded an experiment on transplanting Graci/aria from Qingdao to Lianjiang,Fujian Province.Biomass of the seaweed increased 100 times in 150 days.In 1997,similar experiment carded out in Zhanjiang, Guangdong Province.The biomass increased 63 times in 45 days.In 1999,it reached 207 times in 64 days in Nanao,Shantou,Guangdong.Gracilaria cultivation has become important industry in Guangdong,Fujian,Zhejiang,Jiangsu,Shandong and Liaoning.Nanao is a very good sample for Gracilaria cultivation development. Cultivation area in this island county increased from some 10 mu(1mu=1/15 ha)in 2000 to 12000 mu in 2006.Gracilaria has very high rates of productivity and grows well in waters with high nutrient concentrations.Special growth rate(SPG)of the seaweed reached 16.1% din the Nieyu mariculturearea in Nanao during 19 days.Recent studies show that Gracilaria is a good biofilter for decreasing N and P nutrients and ecomaterial for controlling red tide microalgae.G lemaneiformis has obvious inhibitory effects on the growth of the red tide microalga such as Chaetoceros curvisetus and Scrippsiella trochoidea.In addition,Gracilaria is able to increase concentrations of dissolved oxygen and improve water quality.This seaweed plays very important ecological role in maintaining health integrated madculture ecosystem and safe coastal water quality conditions in China.

关键词： Gracilaria lemaneiforrnis cultivation ecological roles Chinese coastal waters

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