Results 31 to 40 of about 419 (144)
Antheridiogenový systém u sleziníku routičky (\kur{Asplenium ruta-muraria})
The presence of the antheridiogen system in Asplenium ruta-muraria was tested. Cultivation was performed with representatives of recognized antheridiogen types in 12-well plates. It was also determined how many species the antheridiogen of Asplenium ruta-
ČERNOCHOVÁ, Lucie
core
Effective dispersal of fern spore and the ecological relevance of zoochory
ABSTRACT The mechanisms of fern dispersal are under‐studied and there are few data to support the vectors assumed to drive patterns of sporophyte occurrence and speciation. Although wind is generally the fern spore dispersal vector described in the literature, there has always been competing evidence supporting alternate vectors.
James M. R. Brock
wiley +1 more source
New approaches to the study of antheridiogen sensitivity in Ceratopteris richardii [PDF]
The pheromone antheridiogen promotes differentiation of males in some fern gametophyte. Percentages of males in multispore cultures reflect antheridiogen sensitivity in homozygous strains of Ceratopteris richardii.
Scott, Rodney J.
core
Pheromonal Interactions among Gametophytes of \u3ci\u3eOsmundastrum Cinnamomeum\u3c/i\u3e and the Origins of Antheridiogen Systems in Leptosporangiate Ferns [PDF]
Antheridiogen systems, whereby notch-bearing, archegoniate gametophytes induce maleness in ameristic neighbors, have been detected in many core leptosporangiate ferns. Previous studies have failed to detect an antheridiogen system in Osmundales, which is
Andres, Eric A. +2 more
core
Abscisic acid (ABA) and key proteins in its perception and signaling pathways are ancient, but their roles have changed through time. [PDF]
Homologs of the Arabidopsis core abscisic acid (ABA) signaling component OPEN STOMATA1 (OST1) are best known for their role in closing stomata in angiosperm species.
Sussmilch FC +4 more
europepmc +2 more sources
Ecological Significance of Brassinosteroids in Three Temperate Ferns
In this work, we contribute with the first essay devoted to relating the effect of brassinosteroids on the germination and development of fern spores of Pteridium aquilinum, Polystichum lonchitis and Pteris vittata.
Gabriel Y Galán Moris, José María +11 more
core +1 more source
Characteristics of fern gametophytes relate to their habitats. Epiphytic habitats are generally covered by bryophyte mats, making a challenging environment for sporophyte production by resident fern gametophytes.
Chiou, Wen-Liang
core +1 more source
The development of gametophytes and its′ antheridiogen system of Dryopteris erythrosora
The effects of light and darkness on spore germination percentage of the fern Dryopteris erythrosora are investigated.Moreover,the effects of antheridiogen of D.erythrosora on its′ spores germination and gametophyte development and on spores germination ...
WANG Lichao +3 more
doaj
The gametophytes of the homosporous fern Ceratopteris richardii can be either male or hermaphroditic. The primary sex-determining factor is a plant pheromone known as antheridiogen (A$\sb{\rm CE}$) that is secreted by sexually-determined hermaphrodites ...
Wen, Chi-Kuang
core +1 more source
Reproduction and hybridization in ferns
This thesis studies several aspects of fern reproduction and hybridization. Aspects of multiple stages in the fern life cycle are analyzed. Specifically, rates of spore abortion and antheridiogen usage are assessed and compared between various groups ...
HORNYCH, Ondřej
core

