Results 21 to 30 of about 36,189 (303)

Natural Phytochemicals Derived from Gymnosperms in the Prevention and Treatment of Cancers

open access: yesInternational Journal of Molecular Sciences, 2021
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

Complete mitochondrial genome of Thuja sutchuenensis and its implications on evolutionary analysis of complex mitogenome architecture in Cupressaceae

open access: yesBMC Plant Biology, 2023
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

open access: yes, 2021
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
semanticscholar   +1 more source

Cell wall composition strongly influences mesophyll conductance in gymnosperms.

open access: yesThe Plant Journal, 2020
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

open access: yesBMC 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
doaj   +1 more source

Dry Climate Filters Gymnosperms but Not Angiosperms through Seed Mass

open access: yesDiversity, 2023
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]

open access: yes, 2015
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
core   +1 more source

Classification of Vascular Plants in Vietnam According to Modern Classification Systems

open access: yesPlants, 2023
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
doaj   +1 more source

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

open access: yes, 2015
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]

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

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