Results 61 to 70 of about 1,101 (147)
Observation of Chloroplast Movement in Vallisneria
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
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
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]
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
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]
[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
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
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
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
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

