Results 21 to 30 of about 838 (164)

Desiccation tolerance in bryophytes relates to elasticity but is independent of cell wall thickness and photosynthesis. [PDF]

open access: yesPhysiol 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

TRB proteins in moss reveal their evolutionarily conserved roles in plant development and telomere maintenance. [PDF]

open access: yesPlant J
Significance 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

Foliar morphology and epidermal ultrastructure of four Selaginella species (Selaginellaceae – Lycophyta)

open access: yesBotany Letters, 2022
The leaf morphology of Selaginella species from subtropical South America show differences in structure and ultrastructure that are useful for species identification. We studied the following epidermal traits: micromorphology of stomatal types, distribution patterns of silica cells, silica cells and silica bodies of Selaginella convoluta, S ...
López, Priscila Damaris   +2 more
openaire   +2 more sources

Paleoclimatic implications of Lycophyta in the Gondwana of Southern Brazil [PDF]

open access: yesPesquisas em Geociências, 1995
As Lycophyta desempenharam importante papel para o desenvolvimento das associações florísticas durante o Permiano no Gondwana do sul do Brasil (Estado do Rio Grande do Sul). As afinidades botânicas de palinomorfos como Lundbladispora, Vallatisporites, Cristatisporites e impressões e compressões de Lycophyta sugerem que o clímax deste grupo ocorreu ...
GUERRA-SOMMER, MARGOT   +2 more
openaire   +2 more sources

Structure of wall layers inSelaginella kraussianamicrospores (Lycophyta)

open access: yesGrana, 2010
A similarity was found in both construction and ultrastructure between the two exospore layers in microspores of Selaginella kraussiana. The exospore is made up of two different kinds of rods. One of the kinds of rods are large, 100-150 nm in width, while the other are tubular rods 10-15 nm in diameter.
Morbelli, Marta Alicia, Rowley, John R.
openaire   +2 more sources

Roots of angiosperm formins: The evolutionary history of plant FH2 domain-containing proteins [PDF]

open access: yes, 2008
Background Shuffling of modular protein domains is an important source of evolutionary innovation. Formins are a family of actin-organizing proteins that share a conserved FH2 domain but their overall domain architecture differs dramatically between ...
Michal Grunt   +2 more
core   +1 more source

A conspectus of and key to greek isoetes (Isoetaceae), based on a reassessment of haussknecht\u2019s gatherings of 1885 [PDF]

open access: yes, 2015
The three Isoetes species recorded from Thessalia (Thessaly) in N Greece by Haussknecht, in 1899, under the names I. setacea, I. heldreichii, and I. phrygia, were reassessed using megaspore and microspore ornamentation in addition to macromorphological ...
Greuter, W., Troia, A.
core   +1 more source

Palynostratigraphy and paleoecology of Middle Jurassic strata, southeastern Maragheh, according to terrestrial palynomorphs [PDF]

open access: yesJournal of Stratigraphy and Sedimentology Researches, 2017
The Dalichai Formation at the Guydagh stratigraphic section in the southeast of Maragheh, (Western Alborz), with measured thicknesses of 198 meters (consisting of limestone, Calcareous shale, shale limestone, shale and marl) contain terrestrial (spores ...
FRESHTEH SAJJADI   +1 more
doaj   +1 more source

Microspore Morphology of Isoetes Species (Lycophyta) from Southern South America

open access: yesThe Botanical Review, 2006
Abstract Microspores of the 24 species of Isoetes that grow in southern South America were analyzed under a light microscope and scanning electron microscope. The microspores are monolete, elliptic in polar view, 30–40 µm long, and 20–25 µm wide. A background with various characteristics is seen on each surface.
Macluf, Carmen Cecilia   +2 more
openaire   +2 more sources

PlantCAZyme: a database for plant carbohydrate-active enzymes [PDF]

open access: yes, 2014
PlantCAZyme is a database built upon dbCAN (database for automated carbohydrate active enzyme annotation), aiming to provide pre-computed sequence and annotation data of carbohydrate active enzymes (CAZymes) to plant carbohydrate and bioenergy research ...
Ekstrom, Alexander   +3 more
core   +3 more sources

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