منابع مشابه
Poplar demand.
Trichloroethylene (TCE) is a common industrial solvent that poses a particular pollution problem in groundwater; while TCE disappears from surface water within a few weeks, groundwater contamination can take months or years to degrade. Humans have not conclusively been shown to develop cancer in response to TCE exposure, but rats and mice exposed to TCE have an increased incidence of liver and ...
متن کاملWalker groups
A reformulation of Walker’s theorem on the cancellation of Z says that any two homomorphisms from an abelian group B onto Z have isomorphic kernels. It does not have a constructive proof, even for B a subgroup of Z3. In this paper we give a constructive proof of Walker’s theorem for B a direct sum, over any discrete index set, of groups of the following two kinds: finite-rank torsion-free group...
متن کاملThe Poplar-Poplar Rust Interaction: Insights from Genomics and Transcriptomics
Poplars are extensively cultivated worldwide, and their susceptibility to the leaf rust fungus Melampsora larici-populina leads to considerable damages in plantations. Despite a good knowledge of the poplar rust life cycle, and particularly the epidemics on poplar, the perennial status of the plant host and the obligate biotrophic lifestyle of the rust fungus are bottlenecks for molecular inves...
متن کاملPoplar (Populus spp.).
Although species within the genus Populus are, in general, easier to transform and regenerate in vitro than most other trees, many poplar species are very recalcitrant. Many protocols that previously have been reported were developed for a specific genotype or species. Thus, it has often been necessary to re-optimize a protocol each time research is initiated with a new genotype. The method pre...
متن کاملBuilding the Johnnie Walker
class discussion rather than to illustrate either effective or ineffective handling of an administrative situation. Smart of BBH for their help and support during the development of this case. Financial support from R&D INSEAD is also gratefully acknowledged.
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ژورنال
عنوان ژورنال: Canadian Journal of Plant Science
سال: 1977
ISSN: 0008-4220,1918-1833
DOI: 10.4141/cjps77-151