Results 11 to 20 of about 18,834 (152)

Characteristics of C-4 photosynthesis in stems and petioles of C-3 flowering plants [PDF]

open access: yes, 2002
Most plants are known as C-3 plants because the first product of photosynthetic CO2 fixation is a three-carbon compound. C-4 plants, which use an alternative pathway in which the first product is a four-carbon compound, have evolved independently many ...
A Ben Zioni   +29 more
core   +1 more source

Optimization of leaf morphology in relation to leaf water status: A theory. [PDF]

open access: yes, 2020
The leaf economic traits such as leaf area, maximum carbon assimilation rate, and venation are all correlated and related to water availability. Furthermore, leaves are often broad and large in humid areas and narrower in arid/semiarid and hot and cold ...
Ding, Junyan   +2 more
core   +2 more sources

Geochemical support for a climbing habit within the Paleozoic seed fern genus Medullosa [PDF]

open access: yes, 2011
A long-standing problem in paleobotany is the accurate identification of the growth habits and statures of fossil plants. Tissue-specific analysis of stable carbon isotope ratios in plant fossils can provide an independent perspective on this issue ...
Fischer, Woodward W.   +1 more
core   +2 more sources

EFFECT OF IMISSION TO XYLEM ANATOMY OF NORWAY SPRUCE

open access: yesWood Research, 2021
The aim of this work was to analyse the relationship between anatomical parameters of spruce tracheidsand climatic factors and air pollution load, in the period before, during and after the maximum air pollution load. In this study we used the method of dividing annual rings into a number of equally wide sectors, for ...
MARTIN LEXA   +2 more
openaire   +1 more source

Carpology and phermatology of Gomortega (Gomortegaceae): Systematic and evolutionary implications [PDF]

open access: yes, 2001
Carpología y morfología de la cubierta de la semilla de Gomortega (Gomortegaceae): implicaciones sistemáticas y evolutivas. En un esfuerzo de clarificar la posición sistemática del género Gomortega, en el presente trabajo se estudia la morfología y ...
Doweld, Alexander B.
core   +4 more sources

Coordination of Foliar and Wood Anatomical Traits Contributes to Tropical Tree Distributions and Productivity along the Malay-Thai Peninsula [PDF]

open access: yes, 2009
Drought is a critical factor in plant species distributions. Much research points to its relevance even in moist tropical regions. Recent studies have begun to elucidate mechanisms underlying the distributions of tropical tree species with respect to ...
Baltzer, Jennifer L.   +4 more
core   +2 more sources

Real-time imaging of pulvinus bending in Mimosa pudica [PDF]

open access: yes, 2019
Mimosa pudica is a plant that rapidly shrinks its body in response to external stimuli. M. pudica does not perform merely simple movements, but exhibits a variety of movements that quickly change depending on the type of stimuli.
Lee, SJ, Song, K, Yeom, E
core   +1 more source

BRL1 and BRL3 are novel brassinosteroid receptors that function in vascular differentiation in Arabidopsis [PDF]

open access: yes, 2004
Plant steroid hormones, brassinosteroids (BRs), are perceived by the plasma membrane-localized leucine-rich-repeat-receptor kinase BRI1. Based on sequence similarity, we have identified three members of the BRI1 family, named BRL1, BRL2 and BRL3.
Caño Delgado, Ana   +8 more
core   +1 more source

Anatomy of xylem and phloem of the Datiscaceae

open access: yesContributions in science, 1976
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

Foliar and wood traits covary along a vertical gradient within the crown of long-lived light-demanding species of the Congo Basin semi-deciduous forest [PDF]

open access: yes, 2019
Plant functional traits have shown to be relevant predictors of forest functional responses to climate change. However, the trait-based approach to study plant performances and ecological strategies has mostly been focused on trait comparisons at the ...
Beeckman, Hans   +8 more
core   +2 more sources

Home - About - Disclaimer - Privacy