Results 61 to 70 of about 11,655 (221)

Are plants with anti-cancer activity resistant to crown gall? : A test of hypothesis [PDF]

open access: yes, 2007
The Crown gall tumour assay (CGTA) is one of several bench top bioassays recommended for the rapid screening of plants with anti-cancer activity. The rationale for the use of the bioassay is that the tumorogenic mechanism initiated in plant tissues by ...
BT. Ramesha   +4 more
core   +1 more source

A similar phylogeographical structure among sympatric North American birches (Betula) is better explained by introgression than by shared biogeographical history [PDF]

open access: yes, 2014
AimA comparative analysis of the chloroplast (cp) DNA structure of eastern North American birches (Betula) was undertaken to infer the impacts of Quaternary climate change on the phylogeographical structure of these species.LocationEastern North America ...
Dayanandan, Selvadurai   +2 more
core   +1 more source

Molecular IgE Reactivity Profiling With Micro‐Arrayed Allergens Reveals Distinct Interregional Patterns of Sensitization and a Hypoallergenic Region in Türkiye

open access: yesAllergy, Volume 81, Issue 4, Page 1247-1264, April 2026.
A prospective, systematic and cross‐sectional population study was performed involving 1000 adult subjects from five centers representing different climatic areas of Türkiye (Turkey). Molecular IgE profiling demonstrated substantial interregional variation and identified a hypoallergenic region in the easternmost area with a continental climate.
Alp Kazancioglu   +22 more
wiley   +1 more source

Late middle Miocene Konan flora from northern Hokkaido, Japan

open access: yesActa Palaeobotanica, 2020
Plant macrofossils from the upper middle Miocene Konan Tuffaceous Sandstone and Mudstone Member of the Bifuka Formation, known as the Konan flora, northwest of Shibetsu City, Hokkaido, Japan, were taxonomically revised. A total of 31 taxa were recognized,
Atsufumi Narita   +3 more
doaj   +1 more source

Turgor loss point explains climate‐driven growth reductions in trees in Central Europe

open access: yesPlant Biology, Volume 28, Issue 3, Page 732-737, April 2026.
Leaf turgor loss point of native tree species shows a high predictive power over the observed growth anomalies in Central Europe during the extensive drought period between 2018 and 2020. Abstract As climate change thrives, and the frequency of intense droughts is affecting many forested regions, a mechanistic understanding of the factors conferring ...
N. Kunert, I. K. Münchinger, P. Hajek
wiley   +1 more source

SO M E ANA TO M ICA L PR O PE R TIES AND W O OD DENSITY O F OSTRYA C A R PIN IFO LIA SCOP

open access: yesForestist, 2000
Stem wood of Ostrya carpinifolia Scop. (European hophornbeam) grovvn in the Middle Black Sea Region ofThrkey vvas studied. O. carpinifolia is a species in the family Betulaceae. Sn general, the wood of O.
Dilek DOĞU   +3 more
doaj   +1 more source

Comparative Anatomy of Carpinus orientalis Mill. (Betulaceae) Populations in Iran. [PDF]

open access: yesJournal of Genetic Resources, 2015
. Natural populations of Carpinus orientalis Mill. Shrub lands occur mainly in high and middle altitudes of the Hyrcanian forests, N. Iran, particularly on steep rocks and forest outcrops.
Mahsa Razaz   +4 more
doaj   +1 more source

Wing and Pappus Appendages Decrease Seed Terminal Velocity: A Meta‐Analysis

open access: yesEcology and Evolution, Volume 16, Issue 3, March 2026.
This meta‐analysis integrated terminal velocity records for 1479 species from various sources and explored descriptive patterns by taxonomic group, seed dispersal vector, and seed appendage type. This study revealed that wing and pappus appendage decrease seed terminal velocity with a robust analysis using regression models to predict terminal velocity.
Sle‐gee Lee, Tae Kyung Yoon
wiley   +1 more source

Unveiling Diet Preferences and Their Nutritional Drivers Through Metabarcoding: The Case of Alpine Marmot (Marmota marmota L.) in High Altitude Grazed Pastures

open access: yesEcology and Evolution, Volume 16, Issue 3, March 2026.
The alpine marmot (Marmota marmota), a crucial component of alpine ecosystems, serves both as a key player in the food chain and as an ‘ecosystem engineer.’ Employing DNA metabarcoding of fecal samples, this study investigated the diet composition and foraging strategies of four alpine marmot colonies across diverse alpine pasture ecosystems throughout
Giorgio Marchesini   +10 more
wiley   +1 more source

Constituents of Fermented Male Flowers of (Betulaceae)

open access: yesNatural Product Communications, 2017
Fractionation of the ethyl acetate crude extract of the fermented male flowers of Alnus sieboldiana resulted in the isolation of two diarylheptanoids and six flavonoids.
Nurunajah Ab Ghani   +2 more
doaj   +1 more source

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