The occurrence of sexual<i>Chara canescens</i>(Charales, Charophyceae) in Sardinia (Italy)

Nowak, Petra; Weyer, Klaus van de; Becker, Ralf

doi:10.1080/00837792.2019.1610265

Cited by 7 publications

(8 citation statements)

References 23 publications

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“…The halotolerant species C. canescens is one of two European species of the section Desvauxia and characterised by its capability to reproduce parthenogenetically and sexually. In Europe, monoecious and dioecious populations of C. canescens are described (Comelles 1986, Schaible and Schubert 2008, Nowak et al 2019), monoecious C. altaica populations were recently found in South Europe (Romanov and Vishnyakov In Press ). In contrast to Europe, different monoecious and dioecious species are described for Asia and North America such as C. hirsuta , C. evoluta or C. sibirica (Allen 1882, 1900, Migula 1904).…”

Section: Discussionmentioning

confidence: 99%

“…This species is represented in Europe mostly by parthenogenetic populations with a few sexually reproducing ones found in France, Italy (Sicily, Sardinia), Greece, Austria, and Serbia (Krause 1997, Nowak et al 2019, Sabovljević et al 2022). Outside Europe, sexually reproducing populations are reported from North Africa (Morocco), Central Asia, West Siberia, and China (Hollerbach and Krassavina 1983, Fushan and Yaoying 1994, Nowak et al 2019, Romanov unpubl. data).…”

Section: Introductionmentioning

confidence: 99%

“…Still, until the discovery of C. altaica , found in two localities at the south of Eastern Europe (Romanov and Vishnyakov, in press), only one species of the section Desvauxia, i.e., C. canescens , was known from Europe. This species is represented in Europe mostly by parthenogenetic populations with a few sexually reproducing ones found in France, Italy (Sicily, Sardinia), Greece, Austria, and Serbia (Krause 1997, Nowak et al 2019, Sabovljević et al 2022). Outside Europe, sexually reproducing populations are reported from North Africa (Morocco), Central Asia, West Siberia, and China (Hollerbach and Krassavina 1983, Fushan and Yaoying 1994, Nowak et al 2019, Romanov unpubl.…”

Section: Introductionmentioning

confidence: 99%

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Chara canescenspart I: Oospore differentiation of parthenogenic and dioecious strains and salt-dependent oospore sizes

Holzhausen,

Romanov,

Schubert

2024

Preprint

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Chara canescens Loisel. is one of two European species of the section Desvauxia R.D. Wood of the genus Chara L. Whereas most populations of C. canescens reproduce parthenogenetically, a few sites with sexual reproducing populations are known. Studies of European C. canescens oospore morphology led to open questions about the taxonomic status. Here we investigated nearly 1000 oospores from 16 European populations originated from plant release, sediments, germination experiments and herbaria and two Asian populations resulting in a regional determination key for studied populations as well as important database implications regarding origin, oospore plant position and equipment used. The impact of salinisation on oospore morphology were tested by artificial salt levels. The longest but smallest oospores were formed at 3 PSU, whereas the widest at 0.1 PSU and the shortest at 5 PSU. Basal width and shape, on the other hand, seem to be only affected by higher salt contents. This study contributes the lacking oospore-information for both reproduction modes of European of C. canescens populations.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Chara canescenspart I: Oospore differentiation of parthenogenic and dioecious strains and salt-dependent oospore sizes

Holzhausen,

Romanov,

Schubert

2024

Preprint

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“…Many charophyte species and their habitats are threatened throughout Europe, and are mentioned in several national Red Lists [ 4 ]. Sardinia has a key role to play in the conservation of Characeae in the Mediterranean region [ 30 , 58 , 59 ]. Becker [ 30 ] identified numerous Sardinian hotspots for the conservation of charophytes, and proposed specific action plans that mainly focused on Characeae in brackish habitats.…”

Section: Discussionmentioning

confidence: 99%

Chara zeylanica J.G.Klein ex Willd. (Charophyceae, Charales, Characeae): First European Record from the Island of Sardinia, Italy

Becker¹,

Schubert

Nowak

2021

Plants

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The first record of a species belonging to the genus Chara L. subgenus Chara R.D.Wood section Grovesia R.D.Wood subsect. Willdenowia R.D.Wood from Europe is presented here, thus challenging the interpretation of its distribution pattern as an intertropical group of charophytes. The morphological characters of the specimens, as well as the results of a phylogenetic analysis, clearly identified them as Chara zeylanica J.G.Klein ex Willd. Although the subsection Willdenowia has yet to receive a thorough taxonomic treatment, a discussion of its relationship to other taxa of this subsection is provided despite the lack of a commonly agreed upon taxonomic concept. The ecological conditions of the Sardinian site of C. zeylanica are presented. Moreover, the status of and threats to this taxon, and hypotheses regarding potential pathways through which it reached Europe, are discussed.

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“…Here, for the first time in Serbia, we report the finding of male plants in Pečena Slatina near Baranda village. Sexual populations, with both female and male plants, are very rare in Europe and have recently been reported in several countries only, such as Austria (Schaible et al 2011), Spain (Cirujano et al 2008) and Italy (Nowak et al 2019), making the Serbian finding especially significant.…”

Section: Chara Canescensmentioning

confidence: 99%

New records and noteworthy data of plants, algae and fungi in SE Europe and adjacent regions, 9

et al. 2022

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This paper presents new records and noteworthy data on the following taxa in SE Europe and adjacent regions: red algae Lemanea fucina and Paralemanea annulata, parasitic fungus Anthracoidea pratensis, saprotrophic fungi Cyathus olla, Massaria campestris, and Xylaria sicula, stonewort Chara canescens, liverworts Gymnomitrion commutatum and Porella baueri, moss Acaulon triquetrum, monocots Anacamptis laxiflora, Cephalanthera damasonium, and Himantoglossum robertianum and dicot Jacobaea othonnae are given within SE Europe and adjacent regions.

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The occurrence of sexualChara canescens(Charales, Charophyceae) in Sardinia (Italy)

Cited by 7 publications

References 23 publications

Chara canescenspart I: Oospore differentiation of parthenogenic and dioecious strains and salt-dependent oospore sizes

Chara canescenspart I: Oospore differentiation of parthenogenic and dioecious strains and salt-dependent oospore sizes

Chara zeylanica J.G.Klein ex Willd. (Charophyceae, Charales, Characeae): First European Record from the Island of Sardinia, Italy

New records and noteworthy data of plants, algae and fungi in SE Europe and adjacent regions, 9

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