Studio sui pigmenti liposolubili diSternbergia luteaKer-Gawl durante alcune fasi del suo ciclo biologico
作者:
Giuseppe Calabrese,
Luisa Stefanizzi,
期刊:
Giornale botanico italiano
(Taylor Available online 1972)
卷期:
Volume 106,
issue 3
页码: 135-149
ISSN:0017-0070
年代: 1972
DOI:10.1080/11263507209426545
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
A study of Sternbergia lutea Ker-Gawl lipidsoluble pigments during some phases of its biological cycle. — In the present paper we have examined the pigments ofSternbergia luteaand their variations during some particular phases of its biological cycle in order to obtain useful information on their probable function in the plant. Therefore, we have analyzed the pigments of the leaves, floral scape, tepals and anthers. The results obtained show thatSternbergia luteais characterized by the same pigment composition as that of the other higher plants. In addition to this, three further carotenoids have been observed (mainly in the tepals and anthers). Chromatographic and spectrophotometric properties of these new pigments indicate their relationship with carotene isomers that have already been examined. During the phases of vegetative cycle ofSternbergia luteachlorophylls and carotenoids increase concomitantly with the growth of the plant. Carotenes reach a significant maximum value only in anthers. In the course of the necrosis (that obviously occurs in different stages for the various organs) is observed a higher decrease of chlorophylls (in the green tissues) and of the carotenes (in the anthers) while lutein and violaxanthin increase greatly (in the tepals).
点击下载:
PDF (699KB)
返 回