نتایج جستجو برای: salix spp

تعداد نتایج: 52470  

2015
Cai-Hua Zhang Tao Ma Wen-Chun Luo Jian-Mei Xu Jian-Quan Liu Dong-Shi Wan J. Peter W. Young

4-Coumarate:CoA ligase (4CL) genes are critical for the biosynthesis of plant phenylpropanoids. Here we identified 20 4CL genes in the genomes of two desert poplars (Populus euphratica and P. pruinosa) and salt-sensitive congener (P. trichocarpa), but 12 in Salix suchowensis (Salix willow). Phylogenetic analyses clustered all Salicaceae 4CL genes into two clades, and one of them (corresponding ...

2005
Chad S. Boyd Tony J. Svejcar

Quantifying woody plant biomass has often proven difficult in the field for reasons that include irregular plant morphology, between-observer variability, and lack of standardized techniques. One potential solution to these challenges is the use of groundbased photographic technology. Our objective was to develop a photo-based technique that could be used to monitor changes in willow (Salix spp...

Journal: :Journal of economic entomology 2006
Therese M Poland Robert A Haack Toby R Petrice Deborah L Miller Leah S Bauer Ruitong Gao

Anoplophora glabripennis (Motschulsky) (Coleoptera: Cerambycidae), a pest native to China and Korea, was discovered in North America in 1996. Currently, the only reliable strategy available for eradication and control is to cut and chip all infested trees. We evaluated various doses of the systemic insecticides azadirachtin, emamectin benzoate, imidacloprid, and thiacloprid for control of A. gl...

2017
MAsAyA KATo MuNEKAzu IINuMA TosHIyuKI TANAKA HIDEKI SAKAi MIzuo MIzuNo

(Phytochemistry, 26, 2418 (1987)) Acylated Luteolin Glucosides from Salix gitgiana. MIzuo MIzuNo*, MAsAyA KATo, MuNEKAzu IINuMA, TosHIyuKI TANAKA, ' ARIKA KIMuRA, HIRoyosHI OHAsHI, HIDEKI SAKAi Besides apigenin and luteolin 7-glucoside, four novel glucosides acylated with acetic, trans-cinnamic, P-coumaric and ferulic acids, respectively were isolated from the leaves of Salix gitgiana (Salicace...

Journal: :Ambio 2011
Isla H Myers-Smith David S Hik Catherine Kennedy Dorothy Cooley Jill F Johnstone Alice J Kenney Charles J Krebs

Canopy-forming shrubs are reported to be increasing at sites around the circumpolar Arctic. Our results indicate expansion in canopy cover and height of willows on Herschel Island located at 70 degrees north on the western Arctic coast of the Yukon Territory. We examined historic photographs, repeated vegetation surveys, and conducted monitoring of long-term plots and found evidence of increase...

2016
Yajuan Zhu Guojie Wang Renqiang Li

Water is a limiting factor for plant growth and vegetation dynamics in alpine sandy land of the Tibetan Plateau, especially with the increasing frequency of extreme precipitation events and drought caused by climate change. Therefore, a relatively stable water source from either deeper soil profiles or ground water is necessary for plant growth. Understanding the water use strategy of dominant ...

2017
Paweł Sulima Jerzy A. Przyborowski Anna Kuszewska Dariusz Załuski Małgorzata Jędryczka Witold Irzykowski

The biomass of Salix viminalis is the most highly valued source of green energy, followed by S. schwerinii, S. dasyclados and other species. Significant variability in productivity and leaf rust resistance are noted both within and among willow species, which creates new opportunities for improving willow yield parameters through selection of desirable recombinants supported with molecular mark...

2013
Anna Lehrman Tina Boddum Johan A. Stenberg Colin M. Orians Christer Björkman

While carnivores are known to be attracted to herbivore-induced plant volatiles, little is known about how such volatiles may affect the behaviour of omnivorous predators that may use both plants and herbivores as food. Here, we examine how systemically produced plant volatiles, in response to local herbivore damage, differentially attract a key omnivorous predator, Anthocoris nemorum (Heteropt...

2013
Jerzy A. Przyborowski Paweł Sulima Anna Kuszewska Dariusz Załuski Andrzej Kilian

The objectives of this study were to evaluate the usefulness of DArT markers in genotypic identification of willow species and describe genetic relationships between four willow species: Salix viminalis, S. purpurea, S. alba and S. triandra. The experimental plant material comprised 53 willow genotypes of these four species, which are popularly grown in Poland. DArT markers seem to identify Sal...

Journal: :Biological research 2009
Raphael S S Souza Marcela C Almeida Cristiano V Manoel Sebastião D Santos-Filho Adenilson S Fonseca Mario Bernardo Filho

Stannous chloride (SnC12) is used in nuclear medicine as a reducing agent to obtain technetium-99m-radiopharmaceuticals. It have been reported that natural products might reduce the genotoxic and cytotoxic effects related to SnC12. This work evaluated the biological effects of an aqueous extract of Salix alba on the survival of Escherichia coli (E. coli) AB1157 (wild type) cultures submitted to...

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