Results 141 to 150 of about 711 (169)

Oospore Wall Ornamentation in the GenusTolypella(Charales, Charophyceae)

Journal of Phycology, 2012
The ultrastructural features of oospore wall ornamentation in the genusTolypellawere examined using scanning electron microscopy (SEM). The taxonomic relationships among several species were discussed on the basis of oospore ultrastructure and measurements. In the case ofT. glomerataandT.
Jacek, Urbaniak, Anders, Langangen, Joop, van Raam   +2 more
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On the earliest occurrence of Tolypella section Tolypella in the fossil record and the age of major clades in extant Characeae

Botany Letters, 2017
The genus Tolypella is considered the basal-most characean genus according to modern molecular phylogenies.
Carles Martín-Closas, Alba Vicente, Jordi Pérez-Cano, Josep Sanjuan, Telm Bover-Arnal   +4 more
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Oospore dimensions and morphology in North AmericanTolypella(Charophyceae, Charophyta)

Journal of Phycology, 2015
Characteristics of the oospores have been used to delimit sections and, in some cases, species in the genusTolypellaA. Braun. To test the utility of oospore characters for identifying North American species ofTolypella, we investigated oospores from field‐collected and herbarium specimens.
William, Pérez, John D, Hall, Richard M, McCourt, Kenneth G, Karol   +3 more
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The genusTolypella(A. Braun) A. Braun in the Iberian Peninsula

Acta Botanica Gallica, 2013
Abstract This study focuses on the presence and distribution of the species of Tolypella genus in the Iberian Peninsula through a literature review and the examination of environmental, botanical and physicochemical data of the locations where T. salina, T. prolifera, T. intricata, T. hispanica and T. glomerata are settled.
Santos Cirujano Bracamonte, Natalia Guerrero Maldonado, Pablo García Murillo   +2 more
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Tolypella glomerata (Charales) ??? ?????????? ?????? ?????? ???????????????????? ??????????????

2021
???????????????????? ?? ?????????????? Tolypella glomerata (Desv. in Loisel.) Leonh. ??? ???????????? ???????? ?????? ???????????????????? ??????????????. ???? ?????????????????? ?? ??. ???????????? ???? ???????????????????? ???????????????????????????? ??-???? ?????????????????????? ??????., ?? ???????????????? ???????????????????????? ??????????. ????
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Effects of salinity on turgor pressure and fertility in Tolypella (Characeae)

Plant, Cell & Environment, 1996
AbstractWe present the first experimental results on salinity tolerance and regulation mechanisms in the genus Tolypella. The two species investigated, T. nidifica and T. glomerata, regulate turgor pressure with almost complete effectiveness by adjustment of K+ and CT concentrations. Sucrose is also involved. The mechanism is basically identical to the
U. WINTER, I. SOULIÉ‐MÄRSCHE, G. O. KIRST   +2 more
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Tolypella salinaR. Cor. on the French Atlantic coast: biology and ecology

Acta Botanica Gallica, 2013
Abstract Tolypella salina R. Cor. is a Charophyte only known from some French and Iberian stations. Its rarity and the specific richness of the salt marshes where it grows, on the Atlantic and Mediterranean coasts, have led to the proposal to add this species to the French list of protected plants.
Elisabeth Lambert, Didier Desmots, Jean Le Bail, Jean-Baptiste Mouronval, Jean-Claude Felzines   +4 more
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Upper Cretaceous Lychnothamnus, Nitella and Tolypella (Charophyta) from Zampal, Argentina

Cretaceous Research, 2010
Abstract Fossil gyrogonite and oosporangia remains belonging to the three extant Charoideae genera Lychnothamnus, Nitella and Tolypella are infrequent in pre-Tertiary sediments. The present record is striking owing to the geographical provenance of these microfossils at the same locality in west-central Argentina that formed part of the continent of ...
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Metabolic Effects on Ion Fluxes inTolypella intricata

Journal of Experimental Botany, 1968
The uptake of CI ions by cells of Tolypella intricata is greatly increased by light, and must be an active process. K ions in the cells (at 90-110 mM concentration) are in approximate electrochemical equilibrium with the external solution, but the K influx is affected (directly or indirectly) by cellular metabolism.
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TWO NEW SPECIES OF TOLYPELLA(CHARACEAE) FROM NORTH AMERICA1,2

Journal of Phycology, 1973
SUMMARYTwo new species of the genus Tolypella (Characeae)–T. boldii Sawa sp. nov. and T. canadensis Sawa sp. nov.–were discovered in Texas, U.S.A., and Ontario, Canada, respectively. The species are recognized as additional members to the section Acutifolia because of the small and conical branchlet end cell and the oospore with a single basal ...
openaire   +1 more source