Results 21 to 30 of about 26,306 (234)

Charcoal remains from a tonstein layer in the Faxinal Coalfield, Lower Permian, southern Paraná Basin, Brazil

open access: yesAnais da Academia Brasileira de Ciências, 2011
Fossil charcoal has been discovered in the Faxinal Coalfield, Early Permian, Rio Bonito Formation, in the southernmost portion of the Paraná Basin, Brazil.
André Jasper   +4 more
doaj   +1 more source

Light Harvesting in Fluctuating Environments: Evolution and Function of Antenna Proteins across Photosynthetic Lineage

open access: yesPlants, 2021
Photosynthesis is the major natural process that can harvest and harness solar energy into chemical energy. Photosynthesis is performed by a vast number of organisms from single cellular bacteria to higher plants and to make the process efficient, all ...
Pushan Bag
doaj   +1 more source

SPERMATOZOIDS IN GYMNOSPERMS

open access: yesAnnals of Botany, 1897
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Ikeno, Seiichirō, Hirase, S.
openaire   +3 more sources

Hydrophobia of gymnosperms: myth or reality? A global analysis [PDF]

open access: yes, 2014
According to the classical textbooks, the gymnosperms are the only seed plants without aquatic species. Recently, however, a set of virtually complete compilations on gymnosperms has been published, enabling a new evaluation of the putative hydrophobia ...
Ashraf   +47 more
core   +2 more sources

Exploring the loblolly pine (Pinus taeda L.) genome by BAC sequencing and Cot analysis. [PDF]

open access: yes, 2018
Loblolly pine (LP; Pinus taeda L.) is an economically and ecologically important tree in the southeastern U.S. To advance understanding of the loblolly pine (LP; Pinus taeda L.) genome, we sequenced and analyzed 100 BAC clones and performed a Cot ...
Arick, Mark   +10 more
core   +1 more source

Mobilisation of distributional data for vascular plants of Murmansk Region, Russia: Digital representation of the Flora of Murmansk Region [PDF]

open access: yesBiodiversity Data Journal, 2020
The present-day demand for digital availability of distributional data in biodiversity studies requires a special effort in assembling and editing the data otherwise scattered in paper literature and herbarium collections, which can be poorly accessible ...
Mikhail Kozhin   +2 more
doaj   +3 more sources

The evolution of tree nursery offerings in Los Angeles County over the last 110 years [PDF]

open access: yes, 2013
Interest in urban vegetation has increased dramatically. Urban trees are an important aspect of the urban environment but there is little known about the potential sources of those trees, change in tree species diversity over time and the factors leading
Gillespie, TW   +4 more
core   +1 more source

Functional Relationships Between Branch and Stem Wood Density for Temperate Tree Species in North America

open access: yesFrontiers in Forests and Global Change, 2020
Wood density is strongly related to key aspects of tree physiological performance. While many studies have examined wood density in different parts of trees, for a variety of reasons, there are very few studies that have compared within-tree density ...
David W. MacFarlane
doaj   +1 more source

Evolution of plant reproduction: from fusion and dispersal to interaction and communication [PDF]

open access: yes, 2009
Based on the existing data concerning the evolution of the sexual reproduction, it is argued that the processes of sex differentiation and interactions play a key role in evolution. From the beginning environment and organism are unified.
Willemse, M.T.M.
core   +1 more source

Peculiarities of the reproductive processes in the gymnosperms. Gametophytes’ development, pollination and fertilization

open access: yesБіологічні студії, 2013
The review contains the analysis of the latest literature sourses reproductive processes in gymnosperms, namely gametophytes development, рollination, fertilization.
A. Odintsova, A. Rugusova
doaj   +1 more source

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