Canadian Science Publishing
0008-4026
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Các bài báo tiêu biểu
Medium and techniques for induction and growth of monocotyledonous and dicotyledonous plant cell cultures The composition of a medium is described that proved useful to culture callus of a variety of monocotyledonous and dicotyledonous plants. Growth on the medium was often better than on some other excellent media. In addition to supporting rapid cell growth, a soft, friable type of colony growth was often obtained. This type of loose, friable cell growth facilitated work with single cells a... ...
Tập 50 Số 1 - Trang 199-204 - 1972
Community structure of ectomycorrhizal fungi in a Pinus muricata forest: above- and below-ground views We examined the species diversity of an ectomycorrhizal community in natural stands of bishop pine (Pinus muricata D. Don) to determine the correspondence between above- and below-ground views of species composition, spatial frequency, and abundance. We addressed this question by simultaneously sampling fruit bodies and ectomycorrhizae over a 4-year period. By using molecular methods base... ...
Tập 74 Số 10 - Trang 1572-1583 - 1996
Prospects and limitations for mycorrhizas in biocontrol of root pathogensMore than 80 disease biocontrol products are on the market worldwide, but none of these contain mycor rhizal fungi. This is despite ample evidence that both arbuscular mycorrhizal fungi and ectomycorrhizal fungi can control a number of plant diseases. A procedure for successful development of disease biocontrol agents in general is used as a background to examine the potential for achievin... ...
Tập 82 Số 8 - Trang 1198-1227 - 2004
Demystifying suberinSuberin is a term used to define a specific cell wall component that occurs, for example, in phellem (cork) endodermal and exodermal cells and is characterized by the deposition of both poly(phenolic) and poly(aliphatic) domains. Historically, the poly(phenolic) domain has been likened to lignin, and while there is an element of truth to this comparison, recent evidence supports an alterna... ...
Tập 80 Số 3 - Trang 227-240 - 2002
THE EFFECT OF TEMPERATURE ON THE OIL CONTENT AND FATTY ACID COMPOSITION OF THE OILS FROM SEVERAL OIL SEED CROPS Plants of rape, safflower, sunflower, flax, and castor bean were grown at temperatures of 10, 16, 21, and 26.5 °C for the period of seed development. Oil content of sunflower, safflower, and castor bean was not affected by temperature. Highest oil content in rape and flax was found at the lowest temperature and a continual decrease was observed with increases in temperature. Fatty acid co... ...
Tập 43 Số 1 - Trang 63-69 - 1965
Somatic embryogenesis in conifers Substantial progress has been made towards the development of systems for in vitro embryogenesis in conifers. Since the first report of somatic embryogenesis from zygotic embryos of Picea abies in 1985, cultured explants of at least 18 different coniferous species have been induced to produce somatic embryos. Somatic embryos have been cryopreserved, grown in liquid suspensions, and mature... ...
Tập 69 Số 9 - Trang 1873-1899 - 1991
Litter mass-loss rates and decomposition patterns in some needle and leaf litter types. Long-term decomposition in a Scots pine forest. VII The decomposition dynamics of four types of needle litter and three types of leaf litter were followed for 4 years. Mass losses and certain chemical changes were studied. Most of the nutrient-rich litters appeared to decompose relatively quickly during the first 12–18 months. After 3–4 years, however, their accumulated mass losses were lower compared with litter types that intially had lo... ...
Tập 69 Số 7 - Trang 1449-1456 - 1991
Species diversity and distribution of biomass above and below ground among ectomycorrhizal fungi in an old-growth Norway spruce forest in south Sweden The structure of an ectomycorrhizal community was assessed on a 100-m2 plot in a 100-year-old, oligotrophic Norway spruce, Picea abies (L.) Karst., forest in southern Sweden. During the 6-year study (1986–1992) sporocarps were identified and their biomass determined. Late in the fall of 1993, we identified mycorrhizas and estimated their abundance. Forty-eight epigeou... ...
Tập 75 Số 8 - Trang 1323-1335 - 1997
Successive pot cultures reveal high species richness of arbuscular endomycorrhizal fungi in arid ecosystems Three cycles of successive trap cultures were utilized to determine the taxonomic structure of arbuscular fungi associated with mesquite (Prosopis spp.) from three locations in the Sonoran desertscrub biotic community and one location in the Chihuahuan desertscrub biotic community. Unlike the low species richness found in previous studies of some arid habitats, seven to nine species were ... ...
Tập 74 Số 12 - Trang 1883-1889 - 1996
Maximum decomposition limits of forest litter types: a synthesis We used long-term litter decomposition data to estimate final decomposition levels using an asymptotic function. The estimated final limit values for decomposition were compared with available chemical data for the different litter types. A total of 41 limit values were estimated from as many different decomposition studies, and 20 different litter types were incubated in eight different ... ...
Tập 74 Số 5 - Trang 659-672 - 1996