Results 41 to 50 of about 1,042 (173)

Una revisión actualizada de las macroalgas marinas del Ecuador continental

Revista Científica de Ciencias Naturales y Ambientales, 2021
Se realizó una revisión bibliográfica y de herbario para determinar el estado actual de las macroalgas marinas distribuidas en la zona intermareal a lo largo del perfil del Ecuador continental.
Nancy Cuvi Fajardo, Xavier Cornejo Sotomayor   +1 more
doaj   +1 more source

DELAYED POTASSIUM EFFECT IN NITELLA [PDF]

Journal of General Physiology, 1938
In normal cells of Nitella replacement of NaCl by KCl makes the P.D. much less positive: this is called the potassium effect. Cells which have lost the potassium effect usually show little or no change of P.D. when NaCl is replaced by KCl but an occasional cell responds after a delay.
S E, Hill, W J, Osterhout
openaire   +2 more sources

Vegetation trajectories over 150 years of temporary ponds created in the Camargue delta (Southern France)

Restoration Ecology, Volume 34, Issue 5, July 2026.
Abstract Introduction Temporary ponds in the Mediterranean climate have a high conservation value, but many have been severely destroyed or degraded. Pond restoration and new pond creation have been engaged widely. Evaluations of the success of such operations are generally carried out over 10–15 years and show divergent results over this timeframe. In
Hugo Fontès, Patrick Grillas, Thierry Dutoit, Antoine Gazaix, Elie Gaget, François Mesléard   +5 more
wiley   +1 more source

Novos registros de Nitella (Chlorophyta, Characeae) para regiões dos Estados de Mato Grosso e Mato Grosso do Sul, Brasil

Hoehnea
As Charophyceae (Chlorophyta) representam uma classe única de algas devido à sua estrutura vegetativa e porte macroscópico dos gametângios. O inventário florístico do gênero Nitella (Characeae, Chlorophyta) nos Estados de Mato Grosso (18º55'05"S e 54º50 ...
Norma Catarina Bueno, Thamis Meurer, Stefania Biolo, Carlos Eduardo de Mattos Bicudo   +3 more
doaj   +1 more source

Quantifying aquatic plant commonness and co‐occurrence across scales to support ecological understanding and management

Journal of Ecology, Volume 114, Issue 2, February 2026.
Macrophyte commonness and co‐occurrence were quantified to support objective classifications of species distributions in Midwestern lakes. This framework provides a practical tool for conservation prioritization (e.g. identifying species that are rare at regional and local scales that may be more susceptible to local disturbance), invasive species risk
Daniel J. Larkin, Michael R. Verhoeven, Jake R. Walsh, James A. Johnson   +3 more
wiley   +1 more source

Gene Flow and Habitat Heterogeneity Shape Coexistence Dynamics of Arctic Charr Morphs in Connected Lakes

Molecular Ecology, Volume 35, Issue 2, January 2026.
ABSTRACT Sympatric morphs provide valuable systems for studying incipient divergence despite incomplete reproductive isolation. In connected waterbodies with spatially heterogeneous habitats, one or more morphs may form metapopulation structures, generating eco‐evolutionary dynamics unlike those in single lakes.
Han Xiao, Arnar Pálsson, Zophonías O. Jónsson, Sigurður S. Snorrason   +3 more
wiley   +1 more source

TRB proteins in moss reveal their evolutionarily conserved roles in plant development and telomere maintenance

The Plant Journal, Volume 124, Issue 3, November 2025.
Significance Statement TRB proteins in the moss P. patens are essential for normal development, telomere maintenance, and transcriptional regulation. Our findings demonstrate the evolutionary conservation of TRB functions across land plants and highlight their ancient origin in streptophytes.
Alžbeta Kusová, Marcela Holá, Ivana Goffová Petrová, Jiří Rudolf, Dagmar Zachová, Jan Skalák, Jan Hejátko, Božena Klodová, Tereza Přerovská, Martin Lyčka, Eva Sýkorová, Yann J. K. Bertrand, Jiří Fajkus, David Honys, Petra Procházková Schrumpfová   +14 more
wiley   +1 more source

Go hard or go home: Major removal of woody vegetation and sediment greatly enhances wetland plant and water beetle diversity recovery in a farmland pond landscape

Ecological Solutions and Evidence, Volume 6, Issue 4, October–December 2025.
We investigated short‐term (1–3 years) pond biodiversity responses to restoration at a variety of management intensities. Ponds undergoing the most intense intervention (major woody vegetation and sediment removal) showed the strongest biodiversity uplift. This is likely in part due to a seedbank response and highlights the value of intense restoration
Ben Siggery, Carl D. Sayer, Emily Alderton, Helen M. Greaves, Peter M. Robinson, Jan C. Axmacher   +5 more
wiley   +1 more source

Харовые водоросли (Characeae, Charophyceae) Приенисейской Сибири (Россия)

Turczaninowia, 2022
В результате изучения гербарных коллекций и оригинальных сборов выявлены 1 новый род Tolypella и 5 новых видов харовых водорослей для Приенисейской Сибири, 59 новых местонахождений (67 % от их общего числа), 127 новых популяций (83 % от их общего числа).
Роман Евгеньевич Романов, Денис Юрьевич Ефимов, Евгения Геннадьевна Макеева, Дмитрий Николаевич Шауло, Лаура Мингалиевна Киприянова, Татьяна Анатольевна Зотина, Игорь Николаевич Поспелов, Александр Леонович Эбель, Евгения Юрьевна Зарубина, Дана Юрьевна Полянская   +9 more
doaj   +1 more source

Absence of biomagnetic effects in Nitella

Biophysical Journal, 1976
The ability of N. flexilis and N. translucens to survive exposure to magnetic fields up to 1.6 T for extended periods of time was tested. Internodal cells subjected to such fields for as long as 72 h showed no evidence of damage. The active response of internodal cells was studied using an especially constructed sample chamber which allowed the use of ...
Blatt, F.J., Kuo, Y.
openaire   +2 more sources