摘要
裙带菜(Undariapinnatifida)幼孢子体光合作用效率和能力明显超过配子体,在17℃时,幼孢子体的饱和光强和最大净光合放氧速率分别为61.90μmol/(m2·s)和139.98μmol/(mg·h),而雌配子体分别为46.75μmol/(m2·s)和71.16μmol/(mg·h);幼孢子体所含光合色素的含量明显高于配子体;此外,配子体77K荧光发射光谱的长波荧光发射峰在741nm处,而幼孢子体在705nm处。
I n this paper,Photosynthesis properties of female and male gametophytes as well as juvenile sporophytes of Undariap innatifida were investigated.The photosynthesis of gametophytes and juvenile sporophytes were different.At17℃,saturation irradiances and maximumnet photosynthetic rates were significantly higher in juvenile sporophytes(61.90μmol/(m 2 ·s)and139.98μmol/(mg·h))than in female gametophytes(46.75μmol/(m 2 ·s)and71.16μmol/(mg·h).Photosynthetic pigment content in juvenile sporophytes was greatly higher than that in gametophytes.In fluoresˉcence emission spectra at77K,gametophytes had fluorescence emission maximum at741nm which is seen as the charˉacteristic of PS I.It was at705nm in juvenile sporophytes.
出处
《海洋科学》
CAS
CSCD
北大核心
2004年第11期20-27,共8页
Marine Sciences
基金
生化工程国家重点实验室科学基金课题(KT200002)
