Results 1 to 10 of about 192 (130)
Morphology and ultrastructure of megaspores and microspores of Isoetes sehnemii Fuchs (Lycophyta) [PDF]
Anais Da Academia Brasileira De Ciencias, 2010 The morphology and wall ultrastructure of megaspores and microspores of Isoetes sehnemii that grows in Brazil were analyzed as part of the study of the Isoetaceae present in Southern South America. The observations were performed with light, scanning and
Cecilia Macluf +2 more
exaly +7 more sources
Early land plants: Plentiful but neglected nutritional resources for herbivores? [PDF]
Ecol Evol, 2022 In this paper, we explore the unknown reason(s) why herbivores rarely seem to attack early land plants like mosses and ferns. Our study, in which we looked at the performance of an arthropod and a gastropod on 15 species of such plants, yields surprising results that disqualify some of the common notions about early land plants.
Duhin A +3 more
europepmc +2 more sources
Techniques for locating and analyzing subterranean Lycopodium and Diphasiastrum gametophytes in the field. [PDF]
Appl Plant Sci, 2022 Abstract Homosporous club mosses have an archaic life cycle, alternating two locationally, nutritionally, and physiologically independent generations. The sexual generation of club mosses—the gametophytes (or prothallia)—are among the least researched botanical subjects.
Rimgailė-Voicik R, Naujalis JR.
europepmc +2 more sources
Water-related innovations in land plants evolved by different patterns of gene cooption and novelty. [PDF]
New Phytol, 2022 Summary The origin of land plants and their descendants was marked by the evolution of key adaptations to life in terrestrial environments such as roots, vascular tissue and stomata. Though these innovations are well characterized, the evolution of the genetic toolkit underlying their development and function is poorly understood. We analysed molecular
Bowles AMC, Paps J, Bechtold U.
europepmc +2 more sources
Desiccation tolerance in bryophytes relates to elasticity but is independent of cell wall thickness and photosynthesis. [PDF]
Physiol Plant, 2022 Abstract Mosses have been found outliers of the trade‐off between photosynthesis and bulk elastic modulus described for vascular plants. Hence, potential trade‐offs among physical features of cell walls and desiccation tolerance, water relations, and photosynthesis were assessed in bryophytes and other poikilohydric species.
Perera-Castro AV, Flexas J.
europepmc +2 more sources
Revista de Biologia Neotropical, 2007 Este tra balho a pre senta uma li sta gem da s pterid ófita s (Lycophyta e Monilophyta) do Parque Ambiental de Belém (Município de Belém - Pará). Este Parque localiza-se numa Área de Proteção Ambiental , representando um dos últimos remane scente s ...
Jeferson Miranda Costa +2 more
doaj +4 more sources
The genus Isoëtes L. (Lycophyta, Isoëtaceae): synthesis of karyological data
Webbia, 2001 Summary A synthesis of relevant karyological data regarding the genus Isoetes is given, with an up-to-date check list of chromosome numbers including 152 records referring to 67 taxa (62 species and 5 infraspecific taxa) and 16 hybrids. Total of different chromosome counts (considering two or more cytotypes for certain taxa, excluding hybrids) is 80 ...
Angelo Troia
exaly +2 more sources
Lycophyta da borda oeste do Pantanal, Mato Grosso do Sul, Brasil [PDF]
Acta Botanica Brasilica, 2009 Este trabalho apresenta o tratamento taxonômico para as espécies de Lycophyta da região da borda oeste do Pantanal sul-matogrossense. Duas famílias estão presentes na área, Lycopodiaceae e Selaginellaceae, com cinco e seis espécies respectivamente. São apresentadas chaves de identificação, descrições das famílias, gêneros e espécies, ilustrações, bem ...
Paulo H Labiak, Labiak Paulo Henrique
exaly +4 more sources
Acta Botânica Brasílica, 2009 Este trabalho apresenta o tratamento taxonômico para as espécies de Lycophyta da região da borda oeste do Pantanal sul-matogrossense. Duas famílias estão presentes na área, Lycopodiaceae e Selaginellaceae, com cinco e seis espécies respectivamente.
Elton Luis Monteiro de Assis +1 more
doaj +2 more sources
TRB proteins in moss reveal their evolutionarily conserved roles in plant development and telomere maintenance. [PDF]
Plant JSignificance Statement TRB proteins in the moss P. patens are essential for normal development, telomere maintenance, and transcriptional regulation. Our findings demonstrate the evolutionary conservation of TRB functions across land plants and highlight their ancient origin in streptophytes.
Kusová A +14 more
europepmc +2 more sources