西施舌代谢物对单细胞藻类的促生长作用研究  

Study on the Growth-promoting Effect of the Metabolites of Coelomactra antiquata on Unicellular Algae

作　　者：罗杰[1] 王中铎[1] 姚泽彬 LUO Jie;WANG Zhong-duo;YAO Ze-bin(Fisheries College of Guangdong Ocean University,Key Laboratory of Aquaculture in South China Sea for Aquatic Economic Animal of Guangdong Higher Education Institutes,Zhanjiang,Guangdong 524025)

机构地区：[1]广东海洋大学水产学院,南海水产经济动物增养殖广东普通高校重点实验室,广东湛江524025

出　　处：《安徽农业科学》2022年第14期87-91,共5页Journal of Anhui Agricultural Sciences

基　　金：中央财政2019年渔业成品油价格补助湛江市级统筹部分资金补助项目(湛财工〔2019〕152号)。

摘　　要：在实验室条件下,按规格将西施舌分为A[(2.67±0.12)cm]、B[(4.43±0.24)cm]、C[(6.42±0.27)cm]、D[(8.38±0.18)cm]和E[(10.16±0.27)cm]5组,研究了西施舌代谢物对湛江等鞭金藻、牟氏角毛藻、亚心形扁藻及波吉卵囊藻4种单胞藻生长的影响。结果表明:西施舌代谢物对4种单胞藻的生长具有明显的促进作用,对不同种类单胞藻的促生长效果也存在较大差异。西施舌代谢物对湛江等鞭金藻、牟氏角毛藻的促生长作用明显优于亚心形扁藻和波吉卵囊藻;由于不同规格的西施舌排泄量不同,因而其对单胞藻的促生长效果差异极显著(P<0.01)。藻细胞的增长量随着西施舌规格的增大而增大,且D、E组单胞藻的生长维持时间较长,168 h还处于生长期。西施舌的规格与藻细胞的增长量呈正相关,其关系曲线可用Y=aln X+b表示。Under the laboratory conditions,Coelomactra antiquata was divided into 5 groups according to the specification,including groups A[(2.67±0.12)cm],B[(4.43±0.24)cm],C[(6.42±0.27)cm],D[(8.38±0.18)cm]and E[(10.16±0.27)cm].The effects of the metabolites of C.antiquata on the growth of four species of unicellular algae,such as Isochrysis zhanjiangensis,Chaetoceros muelleri,Platymonas subcordiformis and Oocystis borgei,were studied.The results showed that the metabolites of C.antiquata had obvious growth-promoting effects on the growth of four species of unicellular algae.There were great differences of growth-promoting effects among different species of unicellular algae.The growth-promoting effects of Isochrysis zhanjiangensis and Chaetoceros muelleri was obviously better than those of Platymonas subcordiformis and Oocystis borgei.The excretion amount of different specifications of C.antiquata was different,therefore the growth-promoting effects on unicellular algae had extremely significant differences(P<0.01).The growth amount of algal cells increased with the increase of the specification of C.antiquata.The growth of unicellular algae in group D and E maintained for a long time,unicellular algae at 168 h was still in its growth phase.The specification of C.antiquata had a positive relation with the growth amount of algal cells,the relation curve could be expressed by Y=aln X+b.

关 键 词：西施舌 代谢物 单细胞藻类 促生长 

分 类 号：S985.3[农业科学—捕捞与储运]