نتایج جستجو برای: loblolly pine plantations
تعداد نتایج: 23421 فیلتر نتایج به سال:
Previous reports suggest that fungivorous nematodes are the only trophic group in forest soils affected by elevated CO2. However, there can be ambiguity within trophic groups, and we examined data at a genus level to determine whether the conclusion remains similar. Nematodes were extracted from roots and soil of loblolly pine (Pinus taeda) and sweet gum (Liquidambar styraciflua) forests fumiga...
The largest genus in the conifer family Pinaceae is Pinus, with over 100 species. The size and complexity of their genomes (∼20-40 Gb, 2n = 24) have delayed the arrival of a well-annotated reference sequence. In this study, we present the annotation of the first whole-genome shotgun assembly of loblolly pine (Pinus taeda L.), which comprises 20.1 Gb of sequence. The MAKER-P annotation pipeline ...
Changing environmental conditions have the potential to alter allometric relationships between plant parts, possibly leading to ecosystem-level feedbacks. We quantified allometric shifts in field-grown loblolly pine (Pinus taeda L.) in response to altered resource availability based on data from multiple harvests to correct for size-related changes in biomass partitioning. A replicated factoria...
A common study design has been used at 13 locat ions across the South to examine loblol ly pine (Pinus taeda L.) plantations established using four vegetation control treatments after mechanical site preparat ion: (a) No Control , (b) Woody Control , (c) Herbaceous Control for 4 yr , and (d) Total Control . This research, the Compet i t ion Omission Moni toring Project (COMP), is moni toring bo...
A reference karyotype is presented for loblolly pine (Pinus taeda L., subgenus Pinus, section Pinus, subsection Australes), based on fluorescent in situ hybridization (FISH), using 18S-28S rDNA, 5S rDNA, and an Arabidopsis-type telomere repeat sequence (A-type TRS). Well separated somatic chromosomes were prepared from colchicine-treated root meristems, using an enzymatic digestion technique. S...
MOTIVATION A crucial problem in genome assembly is the discovery and correction of misassembly errors in draft genomes. We develop a method called misSEQuel that enhances the quality of draft genomes by identifying misassembly errors and their breakpoints using paired-end sequence reads and optical mapping data. Our method also fulfills the critical need for open source computational methods fo...
Loblolly Pine Somatic Embryogenesis: Development of a Maturation Medium and Resulting Embryo Quality
Clonal production of loblolly pine (Pinus taeda L.) through somatic embryogenesis has great potential to meet the increasing industrial demands for highquality uniform raw materials. A major barrier to the commercialization of this technology is the low quality of resulting embryos. Twenty-five newly initiated loblolly pine genotypes were followed through the process of liquid culture establish...
Cytochrome P450 monooxygenases (P450s) are important enzymes for generating some of the enormous structural diversity of plant terpenoid secondary metabolites. In conifers, P450s are involved in the formation of a suite of diterpene resin acids (DRAs). Despite their important role in constitutive and induced oleoresin defense, a P450 gene of DRA formation has not yet been identified. By using p...
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