Canadian Science Publishing
0008-4026
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Medium and techniques for induction and growth of monocotyledonous and dicotyledonous plant cell cultures
Tập 50 Số 1 - Trang 199-204 - 1972
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 and
the en...
Community structure of ectomycorrhizal fungi in a Pinus muricata forest: above- and below-ground views
Tập 74 Số 10 - Trang 1572-1583 - 1996
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
based on poly...
Prospects and limitations for mycorrhizas in biocontrol of root pathogens
Tập 82 Số 8 - Trang 1198-1227 - 2004
More 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 achieving
commer...
Demystifying suberin
Tập 80 Số 3 - Trang 227-240 - 2002
Suberin 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
alternative vie...
THE EFFECT OF TEMPERATURE ON THE OIL CONTENT AND FATTY ACID COMPOSITION OF THE OILS FROM SEVERAL OIL SEED CROPS
Tập 43 Số 1 - Trang 63-69 - 1965
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 composition...
Somatic embryogenesis in conifers
Tập 69 Số 9 - Trang 1873-1899 - 1991
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
matured into pl...
Litter mass-loss rates and decomposition patterns in some needle and leaf litter types. Long-term decomposition in a Scots pine forest. VII
Tập 69 Số 7 - Trang 1449-1456 - 1991
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
lower rates...
Species diversity and distribution of biomass above and below ground among ectomycorrhizal fungi in an old-growth Norway spruce forest in south Sweden
Tập 75 Số 8 - Trang 1323-1335 - 1997
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 epigeous, ectomycorrhizal
taxa were i...
Successive pot cultures reveal high species richness of arbuscular endomycorrhizal fungi in arid ecosystems
Tập 74 Số 12 - Trang 1883-1889 - 1996
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 recovered...
Maximum decomposition limits of forest litter types: a synthesis
Tập 74 Số 5 - Trang 659-672 - 1996
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 forest sy...