Results 11 to 20 of about 4,906 (172)

The diversity of the pollen tube pathway in plants: towards an increasing control by the sporophyte [PDF]

Frontiers in Plant Science, 2016
Plants, unlike animals, alternate multicellular diploid and haploid generations in their life cycle. While this is widespread all along the plant kingdom, the size and autonomy of the diploid sporophyte and the haploid gametophyte generations vary along ...
Jorge eLora, Jose I Hormaza, Maria eHerrero   +2 more
doaj   +2 more sources

Convergent recruitment of TALE homeodomain life cycle regulators to direct sporophyte development in land plants and brown algae

eLife, 2019
Three amino acid loop extension homeodomain transcription factors (TALE HD TFs) act as life cycle regulators in green algae and land plants. In mosses these regulators are required for the deployment of the sporophyte developmental program.
Alok Arun, Susana M Coelho, Akira F Peters, Simon Bourdareau, Laurent Pérès, Delphine Scornet, Martina Strittmatter, Agnieszka P Lipinska, Haiqin Yao, Olivier Godfroy, Gabriel J Montecinos, Komlan Avia, Nicolas Macaisne, Christelle Troadec, Abdelhafid Bendahmane, J Mark Cock   +15 more
doaj   +2 more sources

Revisions to the fossil sporophyte record of Marsilea

Acta Palaeobotanica, 2019
The fossil record of Marsilea is challenging to assess, due in part to unreliable reports and conflicting opinions regarding the proper application of the names Marsilea and Marsileaceaephyllum to fossil leaves and leaflets similar to those of modern ...
ELIZABETH J. HERMSEN
doaj   +2 more sources

Cretaceous moss-cyanobacteria association reveals trophic interactions in polar forests of Antarctica. [PDF]

New Phytol
Kimmerera cyanifera gen. et sp. nov. with associated cyanobacteria, holotype UWBM 116051. Summary Through symbiotic associations with microbes, mosses play many important ecological roles in terrestrial ecosystems, such as facilitating trophic interactions and nitrogen cycling.
Walker Z, Bippus AC, Iglesias A, Smith SY, Atkinson BA.   +4 more
europepmc   +2 more sources

Sporophyte frequency in British dioicous liverworts

, 2023
The extent and causes of variation in sporophyte production among British dioicous liverworts are assessed. Reproductive attributes of dioicous species are taken from Paton’s The Liverwort Flora of the British Isles (1999). The extent to which sporophyte
Tim H. Blackstock (14854853)
core   +1 more source

protein acts in spermatogenesis and sporophyte retention

, 2023
The auxin efflux PIN-FORMED (PIN) proteins are conserved in all land plants and important players in plant development. In the moss Physcomitrella (Physcomitrium patens), three canonical PINs (PpPINA–C) are expressed in the leafy shoot (gametophore ...
Decker, Eva L., Lüth, Volker, Nico van Gessel, Melanie Hanser, Marion Braun, Gessel, Nico van, Christine Rempfer, Rempfer, Christine, Oliver Herzog, Herzog, Oliver, Volker M. Lüth, Hanser, Melanie, Braun, Marion, Reski, Ralf, Eva L. Decker, Ralf Reski   +15 more
core   +1 more source

Gamete expression of TALE class HD genes activates the diploid sporophyte program in Marchantia polymorpha

eLife, 2021
Eukaryotic life cycles alternate between haploid and diploid phases and in phylogenetically diverse unicellular eukaryotes, expression of paralogous homeodomain genes in gametes primes the haploid-to-diploid transition.
Tom Dierschke, Eduardo Flores-Sandoval, Madlen I Rast-Somssich, Felix Althoff, Sabine Zachgo, John L Bowman   +5 more
doaj   +1 more source

Cuticle structure and chemical composition of waxes in Phaeoceros laevis (L.) Prosk (Notothyladaceae, Anthocerotophyta)

Frontiers in Plant Science, 2022
The development of a hydrophobic cuticle covering the epidermis was a crucial evolutionary novelty ensuring the establishment of land plants. However, there is little information about its structure and chemical composition, as well as its functional ...
Tamara Machado Matos, Rafael Cruz, Denilson Fernandes Peralta, Gladys Flávia de Albuquerque Melo-de-Pinna, Déborah Yara Alves Cursino dos Santos   +4 more
doaj   +1 more source

Comparison of RNA expression profiles on generations of Porphyra yezoensis (Rhodophyta), based on suppression subtractive hybridization (SSH)

BMC Research Notes, 2011
Background Porphyra yezoensis Ueda is one of the most important edible seaweed, with a dimorphic life cycle which consists of gametophyte as macroscopical blade and sporophyte as microscopic filamentous.
Shen Songdong, Zhang Gaochuan, Li Yanyan, Wang Li, Xu Pu, Yi Lefei   +5 more
doaj   +1 more source

The role of class 1 KNOX genes in sporophyte evolution [PDF]

, 2014
Land plants are characterized by the alternation of two generations: the haploid gametophyte and the diploid sporophyte. As land plants evolved from bryophytes to vascular plants, the sporophyte became the dominant generation in the life cycle.
Frangedakis, Eftychios
core   +2 more sources