Results 61 to 70 of about 1,101 (147)

Observation of Chloroplast Movement in Vallisneria

open access: yesBio-Protocol, 2015
Chloroplasts accumulate to weak light and escape from strong light. These light-induced responses have been known from the 19th century (Böhm, 1856). Up to now, many scientists have developed different methods to investigate these dynamic phenomena in a ...
Yuuki Sakai, Shingo Takagi
doaj   +1 more source

In vitro Phosphorylation Assay of Putative Blue-light Receptor Phototropins Using Microsomal and Plasma-membrane Fractions Prepared from Vallisneria Leaves

open access: yesBio-Protocol, 2015
An aquatic angiosperm Vallisneria (Alismatales: Hydrocharitaceae) has been used as an excellent experimental material over a century to study the light regulation of dynamic intracellular movements including chloroplast redistribution and cytoplasmic ...
Yuuki Sakai   +2 more
doaj   +1 more source

Significant changes in seaweed community structure revealed by a nationwide long‐term monitoring survey in Japan ‘Monitoring‐Site 1000’ over the past 15 years (2008–2022)

open access: yesPhycological Research, Volume 74, Issue 1, Page 39-56, January 2026.
SUMMARY Significant changes in seaweed communities were identified at six sites in Japan through the long‐term monitoring program ‘Monitoring Sites 1000.’ This study summarizes the results of 15 years of surveys conducted from 2008 to 2022. Annual nondestructive permanent quadrat observations and line‐transect surveys, carried out perpendicular to the ...
Ryuta Terada   +14 more
wiley   +1 more source

Reinvestigating an enigmatic Late Cretaceous monocot: morphology, taxonomy, and biogeography of Viracarpon [PDF]

open access: yesPeerJ, 2018
Angiosperm-dominated floras of the Late Cretaceous are essential for understanding the evolutionary, ecological, and geographic radiation of flowering plants.
Kelly K.S. Matsunaga   +6 more
doaj   +2 more sources

Spermatophyta Molecular Clock: Time Drift and Recent Acceleration

open access: yesPlant-Environment Interactions, Volume 6, Issue 5, October 2025.
Exponential increase in the base substitution rate in recent geologic time. ABSTRACT Angiospermae radiation is widely recognized as a mid‐Cretaceous event, but the adaptive radiation of Asarum and Viola as spring ephemerals also occurred during the Quaternary. To better understand the evolution of Angiospermae through geological time, a robust and well‐
Soichi Osozawa
wiley   +1 more source

Estudios evolutivos en el Orden Alismatales: datación de la filogenia y evolución morfológica [PDF]

open access: yes, 2015
[Resumo] A Orde Alismatales estivo suxeita a numerosos estudos que pretendían esclarecer a súa filoxenia. Aínda así, as relacións evolutivas entre as familias que a compoñen non deixan de ser incertas.
Penas Tizón, Natalia
core  

The Linnaean revolution – A history of the Natural System

open access: yesTAXON, Volume 74, Issue 5, Page 1011-1034, October 2025.
Abstract A very brief history of the Natural System (NS) is presented, focusing on angiosperms. The account is divided into four parts. The first, “Setting the stage”, gives an outline of my understanding of evolutionary ontology and how this reflects on taxonomy.
Magnus Lidén
wiley   +1 more source

Phylogenetics and molecular evolution of Alismatales based on whole plastid genomes

open access: yes, 2015
The order Alismatales is a mostly aquatic group of monocots that displays substantial morphological and life history diversity, including the seagrasses, the only land plants that have re-colonized marine environments.
Ross, Thomas Gregory
core   +1 more source

Herbivory Dominates the Spring Diet of American Black Bears (Ursus americanus) in a Wood Bison (Bison bison athabascae) Neonatal Range, Suggesting Minimal Bison Consumption

open access: yesEcology and Evolution, Volume 15, Issue 9, September 2025.
In this study, we used scat analysis and DNA metabarcoding to analyze the spring diet of black bears in the neonatal range of a small, threatened wood bison herd in northeast Alberta to assess predation risk of neonate bison. Our results suggest that consumption rates of bison are low and that predation risk to neonate wood bison, during the RLBH's ...
Molly E. Sharp   +2 more
wiley   +1 more source

Progestogens and androgens influence root morphology of angiosperms in a brassinosteroid‐independent manner

open access: yesThe Plant Journal, Volume 123, Issue 5, September 2025.
Significance Statement Plants produce progesterone and androgens, which alter root morphology in A. thaliana and 60% of tested angiosperms. Brassinosteroids seem uninvolved. Understanding the mechanism is like navigating an unknown city—exemplarily Dittelbrunn (a small village in Bavaria)—where the expected shortcut (interaction with brassinosteroids ...
Karl Ludwig Körber   +11 more
wiley   +1 more source

Home - About - Disclaimer - Privacy