Results 51 to 60 of about 4,953 (180)

Changing climates and environments within the complex Middle to Late Pleistocene fill of an overdeepened valley at Niederweningen, Switzerland

open access: yesBoreas, EarlyView.
Glacially overdeepened valleys in the northern Alpine Foreland preserve Middle to Late Pleistocene sedimentary sequences that may serve as valuable archives for reconstructing past environmental changes in response to shifts in climate. This study presents a multidisciplinary analysis of two sediment cores from the overdeepened Wehntal Valley at ...
Johannes M. Miocic   +8 more
wiley   +1 more source

The flattened and needlelike leaves of the pine family (Pinaceae) share a conserved genetic network for adaxial-abaxial polarity but have diverged for photosynthetic adaptation

open access: yesBMC Evolutionary Biology, 2020
Background Leaves have highly diverse morphologies. However, with an evolutionary history of approximately 200 million years, leaves of the pine family are relatively monotonous and often collectively called “needles”, although they vary in length, width
Hong Du   +3 more
doaj   +1 more source

Composition analysis of exudates produced by conifers grown in Taiwan and their antifungal activity

open access: yesJournal of Wood Science, 2022
Exudates are involved in the defense mechanism of trees; they could work against insects or microorganisms through a physical or chemical system. The main components of exudates are terpenoids. This study identified the main compounds of exudates from 13
Nai-Wen Tsao   +4 more
doaj   +1 more source

The Importance of the Larval Parasitoid Actia interrupta (Diptera: Tachinidae) in Low Density Eastern Spruce Budworm Populations

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
Actia interrupta is an important larval tachinid parasitoid during low‐density populations of the eastern spruce budworm. In the late 1980s during the outbreak collapse, Meteorus trachynotus was initially the most important species, but was replaced by A. interrupta. Host patch size and density had no impact on the parasitism rates by A.
Véronique Martel   +2 more
wiley   +1 more source

Pinaceae

open access: yes, 1984
The pine family is one of the most characteristic families of the holarctic realm of which family a few genera reach the margins of the tropics in highlands, but only Pinus extends into tropical lowlands including Malesia.
openaire   +3 more sources

Host Shift Speciation of the Ectomycorrhizal Genus Suillus (Suillineae, Boletales) and Biogeographic Comparison With Its Host Pinaceae

open access: yesFrontiers in Microbiology, 2022
Suillus is a genus of ectomycorrhizal fungi associated almost exclusively with Pinaceae. Lack of sample collections in East Asia and unresolved basal phylogenetic relationships of the genus are the major obstacles for better understanding the Suillus ...
Rui Zhang   +15 more
doaj   +1 more source

Life‐History Traits and Overwintering of Actia interrupta (Diptera: Tachinidae), a Larval Parasitoid of Choristoneura fumiferana (Lepidoptera: Tortricidae)

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
Actia interrupta is a larval tachinid parasitoid that plays a key role in regulating low‐density populations of the eastern spruce budworm. We describe its immature stages, life‐history traits, host‐searching behavior, development, and confirm its larviparous reproductive strategy.
Véronique Martel   +3 more
wiley   +1 more source

Nuevo registro de distribución de Systelloderes lateralus Kritsky, 1978 (Heteroptera: Enicocephalidae) para México

open access: yesRevista Chilena de Entomología, 2023
Se realiza un nuevo registro de distribución de Systelloderes lateralus Kritsky, 1978, con base en ejemplares obtenidos de muestras de hojarasca provenientes de un bosque primario intervenido, compuesto por Pinus michoacana Martínez (Pinaceae) y Quercus ...
Harol Revelo-Tobar   +1 more
doaj   +1 more source

Lignan‐rich Norway spruce (Picea abies) resin extract exhibits anti‐inflammatory, skin‐regenerative and anti‐acne effects: In vitro, in silico, biocompatibility and exploratory clinical findings

open access: yesInternational Journal of Cosmetic Science, EarlyView.
GA text A 30% Picea abies resin extract cream combined antimicrobial, anti‐inflammatory and early pro‐repair activities relevant to acne‐prone skin. The formulation showed strong activity against Cutibacterium acnes, reduced inflammatory cytokines and demonstrated promising tolerability and efficacy in an exploratory in‐use study. Abstract Objective To
Simone Parrotta   +4 more
wiley   +1 more source

Обзор дикорастущих хвойных российских островов Финского залива

open access: yesTurczaninowia, 2018
На основе обширного гербарного материала по дикорастущим хвойным, собранного на российских островах Финского залива, и последующего морфолого-систематического изучения образцов впервые представлены данные о разнообразии и распространении в данном районе ...
L.V. Orlova, E.A. Glazkova
doaj  

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