Results 81 to 90 of about 177,258 (265)
Hybridity of mainly asexually propagating duckweeds in genus Lemna – dead end or breakthrough?
Summary The cosmopolitan, mainly vegetatively propagating, organ‐reduced monocotyledonous aquatic duckweeds are the smallest and fastest growing angiosperms, distributed world‐wide and flower rarely in nature. Recently, we reported intra‐ and interspecific hybrids and ploidy variants in the genus Lemna.
Yuri Lee +10 more
wiley +1 more source
Summary Autonomously self‐fertilizing plants possess disproportionate abilities to found populations. Viewed from the metapopulation perspective, founding events should be frequent in such plants, but the intensity and timing of bottlenecks and recovery should vary among populations.
Daniel J. Schoen, Rachel H. Toczydlowski
wiley +1 more source
Relación Lluvia de Polen-Vegetación en Selvas de Quintana Roo
Modern pollen rain was studied along a 450 km long transect between Cancun-La Union (Belizean border). Ten moss samples were collected in different vegetation types and analyzed for pollen content.
G. Islebe +2 more
semanticscholar +1 more source
Influência dos diferentes tipos de pólen sobre a qualidade do fruto de pitaya
Resumo – Com objetivo de avaliar a qualidade dos frutos de Hylocereus undatus, flores foram polinizadas com polens de H. undatus, Hylocereus polyrhizus e Hylocereus costaricensis. Avaliaram-se aspectos como pegamento (%), peso (g), comprimento e diâmetro
Alessandro Borini Lone +2 more
semanticscholar +1 more source
Decoding plant defense signaling using the defenseless mutant
Summary Can plants live without defenses? Mutant analysis in Arabidopsis thaliana has identified numerous regulators of biotic, abiotic, and hormone‐based defenses, but the redundancy among separate defense pathways remains unexplored. We constructed an Arabidopsis mutant, defenseless, lacking six canonical defense pathways using abi1‐1 (abscisic acid),
Bikash Baral, Mikael Brosché
wiley +1 more source
Eficiencia reproductiva y producción de polen en Nothofagus alpina en un huerto semillero clonal
El potencial de produccion de polen por planta es un buen indicador de la produccion de frutos. En este trabajo se calculo el indice de eficiencia reproductiva, el potencial de produccion promedio de polen por flor y se determino la relacion funcional ...
L. G. Cruzatty +4 more
semanticscholar +1 more source
USING STUDY PAGES IN A BILINGUAL DICTIONARY IN GERMAN LANGUAGE CLASSES
The starting point is the assumption that bilingual dictionaries are not used very often during German language classes. The influence of electronic media results in the fact that paper dictionaries are not in use and students do not know how to make use
Joanna Szczęk
doaj
Preliminary study of the airborne pollen in the atmosphere of Puerto Ayora (Galapagos Islands, Ecuador) [PDF]
Galapagos is an archipelago of volcanic islands located 972 km west from the continental Ecuador. They were declared by the UNESCO as a World Heritage Site and Biosphere Reserve due to their singular environmental value, where a third part of the ...
Jaramillo Díaz, Patricia +3 more
core
Preliminary characterization of a Moroccan honey with a predominance of Bupleurum spinosum pollen [PDF]
Honey with Bupleurum spinosum (zandaz) as a main pollen source has not been the subject of previous detailed study. Therefore, twelve Moroccan samples of this honey were subjected to melissopalynological, physicochemical and microbiological quality ...
Badiâa Lyoussi +17 more
core +3 more sources
Summary In plants, hypoxia sensing is controlled by the stabilization of group VII ethylene response factors (ERF‐VIIs), which are post‐translationally activated by the mitogen‐activated protein kinases (MAPKs) MPK3 and MPK6. However, how plants fine‐tune the MPK3/MPK6‐mediated phosphorylation of ERF‐VIIs to maintain cellular homeostasis remains ...
De‐Mian Zhou +9 more
wiley +1 more source

