

FOLLOWUS
Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, Tianjin 300387, China
skydlp@tjnu.edu.cn
收稿:2023-05-15,
录用:2023-06-28,
网络首发:2023-08-11,
纸质出版:2024-05-01
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A preliminary study on life history of marine red alga
HUANG Bingxin,ZHANG Yao,CHU Yue,et al.A preliminary study on life history of marine red alga Stylonema alsidii (Zandardini) Drew f. ramosum Zheng et Li[J].Journal of Oceanology and Limnology,2024,42(03):915-922.
A preliminary study on life history of marine red alga
HUANG Bingxin,ZHANG Yao,CHU Yue,et al.A preliminary study on life history of marine red alga Stylonema alsidii (Zandardini) Drew f. ramosum Zheng et Li[J].Journal of Oceanology and Limnology,2024,42(03):915-922. DOI:
Stylonema alsidii
(Zandardini) Drew f.
ramosum
Zheng et Li is a common species in the genus
Stylonema
but there are limited reports on morphological taxonomy and a lack of studies on life history and the regulation of early development. The early development
discoid formation
and erect thallus growth of
Stylonema alsidii
f.
ramosum
were observed under laboratory conditions. In addition
the influence of main environmental factors such as temperature and light intensity on its development was briefly studied
and various stages of its life history were observed. The result shows: (1) there are two reproductive modes: asexual reproduction and sexual reproduction; (2) the morphology of this species varies in different degrees under laboratory culture conditions; (3) sexual reproduction and asexual reproduction can coexist under suitable conditions. Five pathways of life history were inferred from experimental phenomena. Mature sporophytes form mature gametophytes by producing initially isolated or initially attached monospore
and mature gametophytes form mature sporophytes by fertilization of eggs and sperms. The sexual and asexual reproduction processes of
Stylonema alsidii
f.
ramosum
were reported for the first time
and this is also the first report on sexual reproduction in the genus
Stylonema
.
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