Results 51 to 60 of about 22,802 (254)

Characterization of the complete chloroplast genome of Betula pendula purple rain (betulaceae)

open access: yesMitochondrial DNA. Part B. Resources, 2023
Betula pendula purple rain is a variety of Betula pendula that is native to Europe and has important ornamental and economic value. In this study, we sequenced the complete chloroplast genome of B. pendula purple rain.
Meiqi Zhang   +6 more
doaj   +1 more source

Population structure of Betula albosinensis and Betula platyphylla: evidence for hybridization and a cryptic lineage. [PDF]

open access: yesAnn Bot, 2019
AbstractBackground and AimsDifferences in local abundance and ploidy level are predicted to impact the direction of introgression between species. Here, we tested these hypotheses on populations of Betula albosinensis (red birch) and Betula platyphylla (white birch) which were thought to differ in ploidy level, the former being tetraploid and the ...
Hu YN   +5 more
europepmc   +5 more sources

Transcriptomic Analysis of Phenotypic Changes in Birch (Betula platyphylla) Autotetraploids [PDF]

open access: yesInternational Journal of Molecular Sciences, 2012
Plant breeders have focused much attention on polyploid trees because of their importance to forestry. To evaluate the impact of intraspecies genome duplication on the transcriptome, a series of Betula platyphylla autotetraploids and diploids were generated from four full-sib families.
Mu, Huai-Zhi   +5 more
openaire   +2 more sources

Overexpression of BpERF1.1 in Betula Platyphylla enhanced tolerance to multiple abiotic stresses. [PDF]

open access: yesPhysiol Mol Biol Plants, 2022
Cold, salt and drought are the main environmental stresses affecting plant growth and crop yield. ERF1, a member of the well-studied ERF gene family, has been proven to play an important role in abiotic stress in plants. In this study, an ERF1, BpERF1.1, was overexpressed in birch (Betula Platyphylla Suk.) and 11 transgenic lines were obtained. Effects
Zhang X, Lin X, Chen S, Chen S.
europepmc   +3 more sources

Dynamic Analysis of Delayed Two-Species Interaction Model with Age Structure: An Application to Larch-Betula Platyphylla Forests in the Daxing’an Mountains, Northeast China

open access: yesMathematics, 2023
Since plant–plant interaction has been the fundamental issue of the ecology community and is essential for the multispecies forest community, it is necessary to analyze the interaction mechanisms and provide suggestions for collaborative management of ...
Xuan Huang, Yuting Ding, Ning Pan
doaj   +1 more source

Patterns of shoot mortality in Betula platyphylla in northern Japan [PDF]

open access: yesTree Physiology, 2006
To understand the development of crown structure in Betula platyphylla Sukatch., mortality patterns of long shoots were analyzed quantitatively. We selected 25 saplings growing under various light conditions and measured the relative photosynthetically active radiation (rPAR) at, and the three-dimensional position of, first-order branches. A long shoot
Kiyoshi, Umeki   +3 more
openaire   +2 more sources

Pollen morphology of Nothofagus (Nothofagaceae, Fagales) and its phylogenetic significance [PDF]

open access: yes, 2016
Nothofagaceae (southern beeches) are a relatively small flowering plant family of trees confined to the Southern Hemisphere. The fossil record of the family is abundant and it has been widely used as a test case for the classic hypothesis that Antarctica,
Barreda, Viviana Dora   +4 more
core   +2 more sources

Effect of Root Moisture Content and Diameter on Root Tensile Properties. [PDF]

open access: yesPLoS ONE, 2016
The stabilization of slopes by vegetation has been a topical issue for many years. Root mechanical characteristics significantly influence soil reinforcement; therefore it is necessary to research into the indicators of root tensile properties.
Yuanjun Yang   +3 more
doaj   +1 more source

New species and records of Stenus (Nestus) of the canaliculatus group, with the erection of a new species group (Insecta: Coleoptera: Staphylinidae: Steninae) [PDF]

open access: yes, 2012
The canaliculatus species group of Stenus (Nestus) is redefined. Four new Palaearctic species of the group are described and illustrated: S. (N.) alopex sp. nov. from the Putorana Highland and Taymyr Peninsula, Russia; S. (N.) canalis sp. nov.
Ryvkin, Alexandr Borisovich
core   +3 more sources

Two new triterpenes from Betula platyphylla

open access: yesPhytochemistry, 1972
Abstract Two new triterpenes, 3α,12β,20( S ),24-tetrahydroxydammar-25-ene (III) and 3α,12β,20( S ),25- tetrahydroxydammar-23-ene (V) were isolated from Betula platyphylla Sukatchev var. japonica . These betulafolientetraols were synthesized from betulafolientriol (I) by photo-oxidation.
N. Ikekawa   +3 more
openaire   +3 more sources

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