Morphological and reproductive differences among three charophyte species in response to variation in water depth

Some charophyte species reproduce sexually by oospores and vegetatively by bulbils, and the proportion of branch whorls that contain reproductive organs can be used as quantitative measures of the degree of sexual reproduction. We examined inter-specific differences in the proportion of bulbils (PB)...

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Autores principales:	H Wang, C Liu, D Yu
Formato:	article
Lenguaje:	EN
Publicado:	Inter-Research 2015
Materias:	Biology (General) QH301-705.5 Microbiology QR1-502
Acceso en línea:	https://doaj.org/article/23e16bb7455e418d867021903cb834f1
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spelling	oai:doaj.org-article:23e16bb7455e418d867021903cb834f12021-11-18T09:18:13ZMorphological and reproductive differences among three charophyte species in response to variation in water depth1864-77821864-779010.3354/ab00638https://doaj.org/article/23e16bb7455e418d867021903cb834f12015-09-01T00:00:00Zhttps://www.int-res.com/abstracts/ab/v24/n2/p91-100/https://doaj.org/toc/1864-7782https://doaj.org/toc/1864-7790Some charophyte species reproduce sexually by oospores and vegetatively by bulbils, and the proportion of branch whorls that contain reproductive organs can be used as quantitative measures of the degree of sexual reproduction. We examined inter-specific differences in the proportion of bulbils (PB) by total weight and the proportion of branch whorls containing gametangia (PG) or oospores (PO), as well as morphological and physiological differences among 3 charophyte species (Chara vulgaris Linnaeus, Chara braunii Gmelin, and Nitella gracilens Morioka) responding to variation in water depth (0.5, 1, 1.5, 2, and 3 m) in an outdoor experiment. A 2-way ANOVA contrasting species and water depth revealed that shoot elongation and the chlorophyll a to carotenoid (chl a/caro) ratio were primarily affected by water depth. However, variation among species contributed more than water depth to the differences in weight, sexual reproduction (PG and PO), and the chl a/chl b ratio. Additionally, variation among species contributed almost equally to the differences in PB that occurred among different water depths. Both Chara species extended their shoots and increased their PB in response to increasing water depth (from 0.5 to 1.5 m). However, deeper water (2 and 3 m) led to elongated shoots as well as decreased PB, PG, and PO. For N. gracilens, elongated shoots with increased water depth (from 0.5 to 3 m) occurred at the expense of both vegetative (decreased PB) and sexual reproduction (reduced PG and PO).H WangC LiuD YuInter-ResearcharticleBiology (General)QH301-705.5MicrobiologyQR1-502ENAquatic Biology, Vol 24, Iss 2, Pp 91-100 (2015)
institution	DOAJ
collection	DOAJ
language	EN
topic	Biology (General) QH301-705.5 Microbiology QR1-502
spellingShingle	Biology (General) QH301-705.5 Microbiology QR1-502 H Wang C Liu D Yu Morphological and reproductive differences among three charophyte species in response to variation in water depth
description	Some charophyte species reproduce sexually by oospores and vegetatively by bulbils, and the proportion of branch whorls that contain reproductive organs can be used as quantitative measures of the degree of sexual reproduction. We examined inter-specific differences in the proportion of bulbils (PB) by total weight and the proportion of branch whorls containing gametangia (PG) or oospores (PO), as well as morphological and physiological differences among 3 charophyte species (Chara vulgaris Linnaeus, Chara braunii Gmelin, and Nitella gracilens Morioka) responding to variation in water depth (0.5, 1, 1.5, 2, and 3 m) in an outdoor experiment. A 2-way ANOVA contrasting species and water depth revealed that shoot elongation and the chlorophyll a to carotenoid (chl a/caro) ratio were primarily affected by water depth. However, variation among species contributed more than water depth to the differences in weight, sexual reproduction (PG and PO), and the chl a/chl b ratio. Additionally, variation among species contributed almost equally to the differences in PB that occurred among different water depths. Both Chara species extended their shoots and increased their PB in response to increasing water depth (from 0.5 to 1.5 m). However, deeper water (2 and 3 m) led to elongated shoots as well as decreased PB, PG, and PO. For N. gracilens, elongated shoots with increased water depth (from 0.5 to 3 m) occurred at the expense of both vegetative (decreased PB) and sexual reproduction (reduced PG and PO).
format	article
author	H Wang C Liu D Yu
author_facet	H Wang C Liu D Yu
author_sort	H Wang
title	Morphological and reproductive differences among three charophyte species in response to variation in water depth
title_short	Morphological and reproductive differences among three charophyte species in response to variation in water depth
title_full	Morphological and reproductive differences among three charophyte species in response to variation in water depth
title_fullStr	Morphological and reproductive differences among three charophyte species in response to variation in water depth
title_full_unstemmed	Morphological and reproductive differences among three charophyte species in response to variation in water depth
title_sort	morphological and reproductive differences among three charophyte species in response to variation in water depth
publisher	Inter-Research
publishDate	2015
url	https://doaj.org/article/23e16bb7455e418d867021903cb834f1
work_keys_str_mv	AT hwang morphologicalandreproductivedifferencesamongthreecharophytespeciesinresponsetovariationinwaterdepth AT cliu morphologicalandreproductivedifferencesamongthreecharophytespeciesinresponsetovariationinwaterdepth AT dyu morphologicalandreproductivedifferencesamongthreecharophytespeciesinresponsetovariationinwaterdepth
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Morphological and reproductive differences among three charophyte species in response to variation in water depth

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