Results 11 to 20 of about 797 (156)
Scientific Reports, 2018 AbstractDriven by limited resources and a sense of urgency, the prioritization of species for conservation has been a persistent concern in conservation science. Gymnosperms (comprising ginkgo, conifers, cycads, and gnetophytes) are one of the most threatened groups of living organisms, with 40% of the species at high risk of extinction, about twice as
Félix Forest +14 more
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Evolution and structural variations in chloroplast tRNAs in gymnosperms
BMC Genomics, 2021 Background Chloroplast transfer RNAs (tRNAs) can participate in various vital processes. Gymnosperms have important ecological and economic value, and they are the dominant species in forest ecosystems in the Northern Hemisphere.
Yu-He Zhao +6 more
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Variability of chromosome number and morphology and gymnosperm improvement [PDF]
Glasnik Šumarskog Fakulteta: Univerzitet u Beogradu, 2004 The causes of monotypic and polytypic variability of the gymnosperm chromosome complex were studied. The development of karyogram and idiograms of the species should be applied in the aim of upgrading the breeding method and technique.
Tucović Aleksandar +2 more
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Anais 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
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Plants, 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
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Annals of Botany, 1897 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Ikeno, Seiichirō, Hirase, S.
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Polyploidy in Gymnosperms [PDF]
Evolution, 1959 The gymnosperms constitute a primitive group of seed plants which have a considerable evolutionary interest. A substantial amount of literature on the morphology of the group exists, but very little has been written about the various cytogenetic factors responsible for evolution within the group.
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Mobilisation of distributional data for vascular plants of Murmansk Region, Russia: Digital representation of the Flora of Murmansk Region [PDF]
Biodiversity 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
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Frontiers 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
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, 2021 Gymnosperms represent a broad range of seed-bearing plants that differ from flowering plants in not having seeds enclosed within carpels. Gymnosperms are probably monophyletic, having arisen among ‘progymnosperm’ stock in the Devonian. Key adaptations involving retention of the megagametophyte within a protective coating to form a seed on the parent ...
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