Evidence for a gibberellin biosynthetic origin of ceratopteris antheridiogen. [PDF]
The species-specific chemical messenger, antheridiogen A(Ce), mediates the differentiation of male gametophytes in the fern Ceratopteris. In order to investigate the biochemical origin of antheridiogen, the effect of the inhibitors, 2'-isopropyl-4'-(trimethylammoniumchloride)-5' -methylphenylpiperidine-1-carboxylate (AMO-1618), 2-chloroethyl ...
T. Warne, Leslie G. Hickok
semanticscholar +3 more sources
Influence of water availability on gender determination of gametophytes in a diploid-polyploid complex of a xerophytic fern genus. [PDF]
Environmental sex determination (ESD) is present in several animal and plant lineages. Diverse factors such as temperature, light or water availability have been described as sex determinants in these organisms. Among plants, ferns frequently display ESD.
Pajarón S +3 more
europepmc +2 more sources
Plasticity of female reproductive resource allocation depends on the presence or absence of prior environmental sex determination in Ceratopteris richardii. [PDF]
In sexually labile plant species, abiotic environmental factors can influence expression of dimorphic gender, resulting in environmental sex determination (ESD). Ceratopteris richardii fern gametophytes have previously been shown to conditionally exhibit ESD, providing the opportunity to assess subsequent plasticity of reproductive resource allocation ...
Goodnoe TT, Hill JP.
europepmc +2 more sources
Male to hermaphrodite sex change in gametophytes of the fern Ceratopteris richardii is affected by hermaphrodite density, male age, and male size [PDF]
Gametophytes of the fern Ceratopteris richardii are male or hermaphrodite. The presence of hermaphrodite-secreted antheridiogen influences gametophytes to develop as male (induction), while its absence leads to hermaphrodite development.
Bronder, Melissa +2 more
core +1 more source
DELLA proteins regulate spore germination and reproductive development in Physcomitrium patens
Summary Proteins of the DELLA family integrate environmental signals to regulate growth and development throughout the plant kingdom. Plants expressing non‐degradable DELLA proteins underpinned the development of high‐yielding ‘Green Revolution’ dwarf crop varieties in the 1960s.
Alexandros Phokas +8 more
wiley +1 more source
Abstract Premise Few studies have explored competition in fern gametophyte populations. One limiting factor is the tedious measurement of gametophyte size as a proxy for biomass in these small plants. Here, an alternative approach of estimating the number of green pixels from photos was employed to measure the competitive interactions among apomictic ...
Ondřej Hornych +3 more
wiley +1 more source
Gibberellins and Antheridiogens in Prothallia and Sporophytes ofAnemia phyllitidis
The following gibberellins (GAs) and antheridiogens were identified by their mass spectra and Kovats retention indices from combined gas chromatography-mass spectrometry of purified extracts of the prothallia and sporophytes of Anemia phyllitidis, a Schizaeaceous fern: a trace amount of GA9 (4-week-old prothallia); GA9, GA24, GA25, antheridic acid and ...
OYAMA, Naomi +6 more
openaire +3 more sources
Synthetic studies on gibberellins and antheridiogens [PDF]
Abstract
openaire +1 more source
The decision to germinate is regulated by divergent molecular networks in spores and seeds
Summary Dispersal is a key step in land plant life cycles, usually via formation of spores or seeds. Regulation of spore‐ or seed‐germination allows control over the timing of transition from one generation to the next, enabling plant dispersal. A combination of environmental and genetic factors determines when seed germination occurs.
Eleanor F. Vesty +14 more
wiley +1 more source
Isolation and Identification of Antheridiogens in the Ferns, Lygodium microphyllum and Lygodium reticulatum [PDF]
Antheridiogens in culture media of 6-week-old prothallia of two species of Schizaeaceous ferns, Lygodium microphyllum and Lygodium reticulatum, were analyzed by gas chromatography-mass spectrometry. In both species, the gibberellin A73 methyl ester (GA73-Me) was identified as the most abundant antheridiogen, and the methyl esters of GA9 and of several ...
Kurumatani, M +6 more
openaire +2 more sources

