Botany
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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. 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 ... ... hiện toàn bộ
Botany - Tập 90 Số 12 - Trang 1191-1194 - 2012
Plant traits and taxonomy drive host associations in tropical phyllosphere fungal communities 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 P... ... hiện toàn bộ
Botany - Tập 92 Số 4 - Trang 303-311 - 2014
Classification of trichome types within species of the water fern Salvinia, and ontogeny of the egg-beater trichomes 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 in... ... hiện toàn bộ
Botany - Tập 87 Số 9 - Trang 830-836 - 2009
Phylogenetic patterns and diversification in the caesalpinioid legumesThis paper is one of a selection of papers published in the Special Issue on Systematics Research.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 ... ... hiện toàn bộ
Botany - Tập 86 Số 7 - Trang 697-718 - 2008
Comparison of four routinely used methods for assessing root colonization by arbuscular mycorrhizal fungiQuantifying 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) wer... ... hiện toàn bộ
Botany - Tập 90 Số 11 - Trang 1073-1083 - 2012
Ecology of the 2004 morel harvest in the Rocky Mountain Forest District of British ColumbiaIn 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–1... hiện toàn bộ
Botany - Tập 86 Số 10 - Trang 1152-1167 - 2008
Salinity-regulated expression of genes involved in GABA metabolism and signaling 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... ... hiện toàn bộ
Botany - Tập 95 Số 6 - Trang 621-627 - 2017
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