Results 31 to 40 of about 148,144 (300)

A Study in the Summer Phenology of Dionychious Spiders from Northern Minnesota Forests [PDF]

open access: yes, 2017
Dionychious ground layer spiders from Larix and Populus stands were collected by pitfall traps. The typical pattern of dominant, influent and accessory species was well marked. Populus stands had greater diversity of species than Larix stands.
Cutler, Bruce, Grim, Lee H, Kulman, H M
core   +2 more sources

Efficient shoot regeneration from internodal explants of Populus angustifolia, Populus balsamifera and Populus deltoids

open access: yesNew Biotechnology, 2011
In the present study, interactions between the duration of treatment with auxin and different cytokinins and their effect on shoot regeneration were evaluated with the aim to establish a rapid and efficient in vitro regeneration method applicable to a variety of Populus species. Three different species, Populus angustifolia, P.
Priti, Maheshwari, Igor, Kovalchuk
openaire   +2 more sources

The Distribution of Saperda Inornata and Oberea Schaumii (Coleoptera: Cerambycidae) within the Crowns of Large Trembling Aspens, Populus Tremuloides [PDF]

open access: yes, 2017
The larvae of Saperda inornata Say and Oberea schaumii LeConte inhabit the stems of trembling aspen (Populus tremuloides Michaux) root suckers and the twigs of larger trees. Nord et al.
Knight, Fred B., Nord, John C.
core   +3 more sources

Genetics polymorphism of poplars from Moscow region based on high-throughput sequencing of ITS

open access: yesВавиловский журнал генетики и селекции, 2018
Poplars are widely used in landscaping of Moscow due to the ability to effectively purify the air from harmful impurities and to release a large amount of oxygen. The genus Populus is characterized by a high level of intraspecies polymorphism, as well as
E. V. Borkhert   +7 more
doaj   +1 more source

On the air permeability of Populus pit [PDF]

open access: yes, 2012
Sap hydrodynamics in vascular cells of trees seems to be controlled by small membranes called pits. Understanding how the pit junctions regulate the sap flow and stop embolism by cavitation is today a challenging issue.
Capron, Marie   +2 more
core   +4 more sources

The physiological response of Populus tremula x alba leaves to the down-regulation of PIP1 aquaporin gene expression under no water stress. [PDF]

open access: yes, 2013
In order to study the role of PIP1 aquaporins in leaf water and CO2 transport, several lines of PIP1-deficient transgenic Populus tremula x alba were generated using a reverse genetic approach. These transgenic lines displayed no visible developmental or
Secchi, Francesca, Zwieniecki, Maciej A
core   +3 more sources

Preference for Some Nursery-grown Hybrid \u3ci\u3ePopulus\u3c/i\u3e Trees by the Spotted Poplar Aphid and Its Suppression by Insecticidal Soaps (Homoptera: Aphididae) [PDF]

open access: yes, 2017
Susceptibility ranking of more than 50 clones of hybrid Populus whips showed a wide range of attack ranging from none to very heavy. Clones with P. x jackii parentage were the most susceptible, whereas Carolina poplar was unscathed.
Moore, Lincoln M, Wilson, Louis F
core   +2 more sources

Habitat complexity and prey composition shape an apex predator's habitat use across contrasting landscapes

open access: yesEcography, EarlyView.
The spatial ecology of stalk‐and‐ambush predators like the Eurasian lynx Lynx lynx depends on prey availability and environmental features, yet the relative roles of these factors remain unclear at large spatial scales. In this study, we analysed lynx habitat use across central and southern Finland using snow‐track data from the Wildlife Triangle ...
Francesca Malcangi   +4 more
wiley   +1 more source

Variability of quantitative and qualitative characteristics of Populus × sibirica G.V. Krylov & G.V. Grig. ex A.K. Skvortsov

open access: yesСоциально-экологические технологии, 2019
The purpose of this work is to identify the level of phenotypic diversity of the morphological features of Populus × sibirica leaves, including qualitative signs-phenes. To reveal the variability, the authors examined 90 trees, on which 1,350 leaves were
B.V. Proshkin, A.V. Klimov
doaj   +1 more source

Diversification and expression of the PIN, AUX/LAX, and ABCB families of putative auxin transporters in \u3cem\u3ePopulus\u3c/em\u3e [PDF]

open access: yes, 2012
Intercellular transport of the plant hormone auxin is mediated by three families of membrane-bound protein carriers, with the PIN and ABCB families coding primarily for efflux proteins and the AUX/LAX family coding for influx proteins. In the last decade
Carraro, Nicola   +4 more
core   +1 more source

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