Results 21 to 30 of about 36,189 (303)
Natural Phytochemicals Derived from Gymnosperms in the Prevention and Treatment of Cancers
The incidence of various types of cancer is increasing globally. To reduce the critical side effects of cancer chemotherapy, naturally derived compounds have been considered for cancer treatment.
Tayyebeh Ghaffari +6 more
semanticscholar +1 more source
Background The complex physical structure and abundant repeat sequences make it difficult to assemble the mitogenomes of seed plants, especially gymnosperms. Only approximately 33 mitogenomes of gymnosperms have been reported. However, as the most widely
Changying Xia +9 more
doaj +1 more source
Polyploidy in Gymnosperms-A Reappraisal
Recent polyploidy in gymnosperms is unusually scarce being present in only 9.80 % of the 714 taxa studied cytologically. Polyploid forms are represented by sporadic seedlings and individual trees, intraspecific polyploidy in cultivation or in wild and ...
D. Ohri
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Cell wall composition strongly influences mesophyll conductance in gymnosperms.
Cell wall thickness is widely recognized as one of the main determinants of mesophyll conductance to CO2 (gm ). However, little is known about the components that regulate cell wall effective CO2 diffusivity (i.e.
M. Carriquí +5 more
semanticscholar +1 more source
Evolution and structural variations in chloroplast tRNAs in gymnosperms
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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Dry Climate Filters Gymnosperms but Not Angiosperms through Seed Mass
In the context of climate change in recent years, the fate of woody plant seed has an important impact on forest regeneration. Seed mass is an important reproductive strategy of plants. There are huge differences between gymnosperms (mainly conifers) and
Yang Qi +4 more
doaj +1 more source
Green Plants in the Red: A Baseline Global Assessment for the IUCN Sampled Red List Index for Plants [PDF]
Plants provide fundamental support systems for life on Earth and are the basis for all terrestrial ecosystems; a decline in plant diversity will be detrimental to all other groups of organisms including humans. Decline in plant diversity has been hard to
Albuquerque, S +54 more
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Classification of Vascular Plants in Vietnam According to Modern Classification Systems
Vietnam is extremely rich in biodiversity, with a remarkable range of habitats and more than 13,500 species of vascular plants recorded for the flora of Vietnam. This number represents about 3 to 5% of the world’s diversity of vascular plants.
Ngoc A. Luu-dam +3 more
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Hydrophobia of gymnosperms: myth or reality? A global analysis [PDF]
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 ...
G. Kozlowski +4 more
semanticscholar +4 more sources
Evolution of plant reproduction: from fusion and dispersal to interaction and communication [PDF]
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.
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