Results 251 to 260 of about 3,660,330 (295)

Therapy with lebrikizumab for refractory peristomal irritant contact dermatitis

open access: yes
JDDG: Journal der Deutschen Dermatologischen Gesellschaft, EarlyView.
Olivia Danneil   +2 more
wiley   +1 more source

Ecological implications of stomatal density and stomatal index in the adult stage of Mimosa L. (Leguminosae, Caesalpinioideae)

Protoplasma, 2023
Differences in stomatal density (SD) and stomatal index (SI) are associated with the conditions of the environment in which they are distributed. Mimosa species are important elements in different plant communities, yet knowledge of the ecological implications of its stomatal characteristics is scarce.
Susana A Montaño-Arias, Rosaura Grether
exaly   +3 more sources

Variations in stomatal density and index: implications for palaeoclimatic reconstructions

Plant, Cell and Environment, 1996
ABSTRACTThe variation in stomatal characters in leaves from one Alnus glutinosa (L.) Gaertn. tree is analysed. Measurements were taken from over 70 sites on the abaxial surfaces of representative ‘sun’ and ‘shade’ leaves having the same insertion point. The mean values of stomatal density and index in the shade leaf were significantly lower (71 and 93%,
Tracy Lawson
exaly   +2 more sources

Effect of Culture Conditions on Stomatal Density and Stomatal Index in Four Cactus Species

Haseltonia, 2015
Abstract: We evaluated type of stomata, as well as differences in stomatal frequency in three areas of the plant (apical, middle and basal) under two culture conditions (in vitro and ex vitro), in four cactus species (Opuntia ficus-indica, Hylocereus undatus, Escontria chiotilla and Mammillaria petterssonii).
Cristina Garcidueñas-Piña   +2 more
exaly   +2 more sources

Stomatal Density and Index of Fossil Plants Track Atmospheric Carbon Dioxide in the Palaeozoic

Annals of Botany, 1995
Abstract It has been demonstrated that the leaves of a range of forest tree species have responded to the rising concentration of atmospheric CO2 over the last 200 years by a decrease in both stomatal density and stomatal index. This response has also been demonstrated experimentally by growing plants under elevated CO2 concentrations.
Jennifer C. McElwain, William G Chaloner
exaly   +2 more sources

Stomatal index response of Quercus robur and Quercus petraea to the anthropogenic atmospheric CO2 increase

Plant Ecology, 2005
The inverse relationship between numbers of stomata (stomatal frequency) on tree leaves and ambient CO2 concentration is increasingly applied for reconstructing past atmospheric CO2 levels. The abundance of leaf remains of Quercus robur in Holocene peat and lake deposits in Europe makes this species potentially suitable for high-resolution stomatal ...
Wolfram Kuerschner   +2 more
exaly   +3 more sources

Relationship of stomatal density and index of Salix cinerea to atmospheric carbon dioxide concentrations in the Holocene

Holocene, 1995
The impact of different concentrations of ambient CO 2 on the stomatal density and index of Salix cinerea are investigated. Fossil leaves (AMS dated 9190 BP) and present-day material from the same site in south west Ireland are compared with nineteenth-century herbarium material from Ireland.
Jennifer C. McElwain, M B Jones
exaly   +2 more sources

Stomatal Structure in Symphyotrichum Nees Species as an Additional Index of Invasiveness

Russian Journal of Biological Invasions, 2021
The study was aimed on a comparison of morphometric traits of the stomatal apparatus in cultivated Symphyotrichum Nees species to evaluate the adaptive capacity of these alien taxa. The study included eleven Symphyotrichum species from the collection of the Botanical Garden of Padua (Italy): S. novi-belgii, S. novae-angliae, S. ciliolatum, S. laeve, S.
Yu. K. Vinogradova   +2 more
openaire   +1 more source

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