不同营养盐水平对芋根江蓠的生长及生化组分的影响

为探讨适宜大型海藻芋根江蓠(Gracilaria blodgettii)栽培的生态条件,分别测定了在不同总无机氮浓度(48μmol·L^-1、96μmol·L^-1、144μmol·L^-1、192μmol·L^-1、240μmol·L^-1、288μmol·L^-1和336μmol·L^-1)和不同氮磷比(N/P)(1/1、5/1、10/1、50/1和100/1)的培养条件下,芋根江蓠藻体的相对生长速率(RGR)和生化组分的变化。结果表明,最适总无机氮浓度为192μmol·L^-1,最适N/P为10/1。芋根江蓠适宜在氨氯(NH4^+-N)比例较高的海水中生长,3种无机氮最适合质量比值是m[...

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Published in南方水产科学 Vol. 10; no. 5; pp. 30 - 38
Main Author 黄中坚 钟志海 宋志民 刘涛 陈伟洲 唐贤明
Format Journal Article
LanguageChinese
Published 汕头大学海洋生物研究所,广东 汕头,515063%中国海洋大学海洋生命学院,山东 青岛,266003%海南省海洋与渔业科学院,海南 海口,570203 2014
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ISSN2095-0780
DOI10.3969/j.issn.2095-0780.2014.05.005

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Abstract 为探讨适宜大型海藻芋根江蓠(Gracilaria blodgettii)栽培的生态条件,分别测定了在不同总无机氮浓度(48μmol·L^-1、96μmol·L^-1、144μmol·L^-1、192μmol·L^-1、240μmol·L^-1、288μmol·L^-1和336μmol·L^-1)和不同氮磷比(N/P)(1/1、5/1、10/1、50/1和100/1)的培养条件下,芋根江蓠藻体的相对生长速率(RGR)和生化组分的变化。结果表明,最适总无机氮浓度为192μmol·L^-1,最适N/P为10/1。芋根江蓠适宜在氨氯(NH4^+-N)比例较高的海水中生长,3种无机氮最适合质量比值是m[硝氮(NO3^--N)]∶m(NH4^+-N)∶m[亚硝氮(NO-2-N)]=1∶10∶5和m(NO3^--N)∶m(NH4^+-N)∶m(NO-2-N)=5∶10∶1。在最适宜的营养盐因子环境条件下,芋根江蓠在生化组分(光合色素及可溶性蛋白)和抗氧化能力等方面都表现较好;而在海水总无机氮浓度过低、N/P过高以及NH4^+-N在总无机氮中所占比例较低等条件下,都不利于藻体正常生长,会导致藻体营养不良、生长缓慢。
AbstractList S968.43; 为探讨适宜大型海藻芋根江蓠( Gracilaria blodgettii)栽培的生态条件,分别测定了在不同总无机氮浓度(48μmol·L-1、96μmol·L-1、144μmol·L-1、192μmol·L-1、240μmol·L-1、288μmol·L-1和336μmol·L-1)和不同氮磷比(N/P)(1/1、5/1、10/1、50/1和100/1)的培养条件下,芋根江蓠藻体的相对生长速率(RGR)和生化组分的变化。结果表明,最适总无机氮浓度为192μmol·L-1,最适N/P为10/1。芋根江蓠适宜在氨氯( NH4+-N)比例较高的海水中生长,3种无机氮最适合质量比值是m[硝氮( NO3--N)]: m( NH4+-N): m[亚硝氮( NO2--N)]=1:10:5和m( NO3--N): m( NH4+-N): m( NO2--N)=5:10:1。在最适宜的营养盐因子环境条件下,芋根江蓠在生化组分(光合色素及可溶性蛋白)和抗氧化能力等方面都表现较好;而在海水总无机氮浓度过低、N/P过高以及NH4+-N在总无机氮中所占比例较低等条件下,都不利于藻体正常生长,会导致藻体营养不良、生长缓慢。
为探讨适宜大型海藻芋根江蓠(Gracilaria blodgettii)栽培的生态条件,分别测定了在不同总无机氮浓度(48μmol·L^-1、96μmol·L^-1、144μmol·L^-1、192μmol·L^-1、240μmol·L^-1、288μmol·L^-1和336μmol·L^-1)和不同氮磷比(N/P)(1/1、5/1、10/1、50/1和100/1)的培养条件下,芋根江蓠藻体的相对生长速率(RGR)和生化组分的变化。结果表明,最适总无机氮浓度为192μmol·L^-1,最适N/P为10/1。芋根江蓠适宜在氨氯(NH4^+-N)比例较高的海水中生长,3种无机氮最适合质量比值是m[硝氮(NO3^--N)]∶m(NH4^+-N)∶m[亚硝氮(NO-2-N)]=1∶10∶5和m(NO3^--N)∶m(NH4^+-N)∶m(NO-2-N)=5∶10∶1。在最适宜的营养盐因子环境条件下,芋根江蓠在生化组分(光合色素及可溶性蛋白)和抗氧化能力等方面都表现较好;而在海水总无机氮浓度过低、N/P过高以及NH4^+-N在总无机氮中所占比例较低等条件下,都不利于藻体正常生长,会导致藻体营养不良、生长缓慢。
Abstract_FL In order to determine the best ecological conditions for the growth of Gracilaria blodgettii,we observed the changes in its relative growth rate(RGR)and biochemical constituents at different total inorganic nitrogen concentrations(48μmol·L-1,96μmol· L-1 ,144 μmol·L-1 ,192 μmol·L-1 ,240 μmol·L-1 ,288 μmol·L-1 ,336 μmol·L-1 )and with different N/P values(1/1,5/1, 10/1,50/1,100/1). The optimum total inorganic nitrogen concentration was 192 μmol·L-1;the optimum N/P value was 10/1;the optimum m( NO3--N): m( NH4+-N): m( NO2--N)were 1: 10: 5 and 5: 10: 1. Under these conditions,G. blodgettii obtained higher RGR,the highest contents of phycobiliprotein and soluble protein,but lower peroxidas( POD)activity and malondialdehyde ( MDA)content. However,the algae suffered malnutrition and slow growth when total inorganic nitrogen concentration was too low, N/P value was too high and the ratio of NH4+-N to total inorganic nitrogen was relatively low.
Author 黄中坚 钟志海 宋志民 刘涛 陈伟洲 唐贤明
AuthorAffiliation 汕头大学海洋生物研究所,广东汕头515063 中国海洋大学海洋生命学院,山东青岛266003 海南省海洋与渔业科学院,海南海口570203
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Author_FL SONG Zhimin
LIU Tao
HUANG Zhongjian
TANG Xianming
CHEN Weizhou
ZHONG Zhihai
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DocumentTitleAlternate Effect of different nutrient salts on growth and chemical constituents of Gracilaria blodgettii
DocumentTitle_FL Effect of different nutrient salts on growth and chemical constituents of Gracilaria blodgettii
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Keywords 营养盐
biochemical constituent
芋根江蓠
Gracilaria blodgettii
growth
生化组分
nutrient salt
生长
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Notes In order to determine the best ecological conditions for the growth of Gracilaria blodgettii, we observed the changes in its relative growth rate (RGR) and biochemical constituents at different total inorganic nitrogen concentrations (48 μmol·L^-1, 96μmol·L^-1, 144 μmol·L^-1, 192 μmol·L^-1, 240 μmol·L^-1, 288 μmol·L^-1, 336μmol·L^-1) and with different N/P values (1/1, 5/1, 10/1, 50/1, 100/1). The optimum total inorganic nitrogen concentration was 192 μmol·L^-1; the optimum N/P value was 10/1; the optimum re(NO3^- -N) : m(NH4^+ -N) : re(NO3^-N) were 1 : 10 : 5 and 5 : 10 : 1. Under these conditions, G. blodgettii obtained higher RGR, the highest contents of phycobiliprotein and soluble protein, but lower peroxidas ( POD ) activity and malondialdehyde (MDA) content. However, the algae suffered malnutrition and slow growth when total inorganic nitrogen concentration was too low, N/P value was too high and the ratio of NH4^+ -N to total inorganic nitrogen was relatively low.
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HUANG Zhongjian, ZHONG Zhihai
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Publisher 汕头大学海洋生物研究所,广东 汕头,515063%中国海洋大学海洋生命学院,山东 青岛,266003%海南省海洋与渔业科学院,海南 海口,570203
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Snippet 为探讨适宜大型海藻芋根江蓠(Gracilaria blodgettii)栽培的生态条件,分别测定了在不同总无机氮浓...
S968.43; 为探讨适宜大型海藻芋根江蓠( Gracilaria blodgettii)栽培的生态条件,分别测定了在不同总无机氮浓...
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SubjectTerms 生化组分
生长
芋根江蓠
营养盐
Title 不同营养盐水平对芋根江蓠的生长及生化组分的影响
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