Botany
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Phylogenetic patterns and diversification in the caesalpinioid legumesThis paper is one of a selection of papers published in the Special Issue on Systematics Research.
Botany - Tập 86 Số 7 - Trang 697-718 - 2008
Subfamily Caesalpinioideae is a paraphyletic grade of 171 genera that comprises
the first branches of the Leguminosae and from which are derived the
monophyletic subfamilies Mimosoideae and Papilionoideae. We have sequenced the
chloroplast matK gene, and the trnL and 3′-trnK introns for 153 genera of
caesalpinioid legumes. Parsimony and Bayesian phylogenetic analyses of these
data support the mono...
Comment on “Acquiring DNA sequence data from dried archival red algae (Florideophyceae) for the purpose of applying available names to contemporary genetic species: a critical assessment” 1Appears in Botany 90(3): 191–203. doi:10.1139/b11-079.
Botany - Tập 90 Số 12 - Trang 1191-1194 - 2012
Saunders and McDevit recently reported their efforts to extract and amplify DNA
by PCR in successively older red algal (Rhodophyta) herbarium specimens. They
found that recent collections (4-11 years old) readily amplified but that
archival material (decades to a century old) yielded contamination problems,
diminished success correlated with age, or failed to amplify. As a solution,
they proposed ...
Classification of trichome types within species of the water fern Salvinia, and ontogeny of the egg-beater trichomes
Botany - Tập 87 Số 9 - Trang 830-836 - 2009
Species of the water fern Salvinia are well known for their extremely
water-repellent floating leaves. The architecture of Salvinia surfaces is of
great interest for biomimetic applications, because submersed in water, they
retain air films for a long period. Knowledge of these surfaces is also
important for pest control, since one species ( Salvinia molesta D.S. Mitch.) is
a pantropic invasive aq...
Salinity-regulated expression of genes involved in GABA metabolism and signaling
Botany - Tập 95 Số 6 - Trang 621-627 - 2017
4-Aminobutyrate (GABA) is a nonproteinogenic amino acid that functions in stress
tolerance and signaling. Here, we report that salinity stress and elevated GABA
levels coincided with the induction of glutamate decarboxylase 4 (GAD4)
expression in Arabidopsis thaliana (L.) Heynh. ecotype Col-0. In-silico and
microarray analysis revealed the over-representation of binding sites for WRKY
and MYB tran...
Ecology of the 2004 morel harvest in the Rocky Mountain Forest District of British Columbia
Botany - Tập 86 Số 10 - Trang 1152-1167 - 2008
In the Rocky Mountain Forest District of British Columbia, a dramatic series of
fires occurred during 2003, setting the stage for an abundant morel crop in the
following year. During 2004, the abundance of post-fire morels ( Morchella spp.)
was measured and the plant community associated with morel production was
characterized. Morel production averaged 6473 ± 2721 morels·ha–1in five burnt
forests...
Comparison of four routinely used methods for assessing root colonization by arbuscular mycorrhizal fungi
Botany - Tập 90 Số 11 - Trang 1073-1083 - 2012
Quantifying the proportion of roots colonized by arbuscular mycorrhizal fungi
(AMF) is routine work for researchers conducting AMF studies. However, in
practice, the methods are always misused, with their adaptability to different
conditions neglected. In this study, four frequently used methods (root segment
±, root segment estimation, grid-line intersect, and magnified intersections)
were evalua...
Plant traits and taxonomy drive host associations in tropical phyllosphere fungal communities
Botany - Tập 92 Số 4 - Trang 303-311 - 2014
The aerial surface of plants, known as the phyllosphere, represents a widespread
and diverse habitat for microbes, but the fungal communities colonizing the
surface of leaves are not well characterized, and how these communities are
assembled on hosts is unknown. We used high-throughput sequencing of fungal
communities on the leaves of 51 tree species in a lowland tropical rainforest in
Panama to ...
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