Disease relevance of Larix

• Many of the Bacteroides strains tested were also able to ferment a variety of plant polysaccharides, including amylose, dextran, pectin, gum tragacanth, gum guar, larch arabinogalactan, alginate, and laminarin [1].
• Abietane diterpenoids from the cones of Larix kaempferi and their inhibitory effects on Epstein-Barr virus activation [2].
• Action of Bacillus thuringiensis preparation against larch bud moth, Zeiraphera diniana (Gn.), enhanced by beta-exotoxin and DDT [3].

High impact information on Larix

• The fibrillar substructures of large and elongated fibers of protoplasts isolated from Larix ECs were investigated by laser confocal scanning microscopy (LCSM) after Aniline Blue staining and atomic force microscopy (AFM) using a micromanipulator without any pre-treatment [4].
• Efficiency of novel fiber formation was much improved in protoplast culture of embryogenic cells (ECs) of a conifer, Larix leptolepis (Sieb. et Zucc.) Gord., by pre-culturing ECs in a medium containing a high concentration of glutamine (13.7 mM) [4].
• Both enzymes released acetic acid from chemically acetylated larch xylan [5].
• Arabinogalactan, a polysaccharide from the tree Larix occidentalis, has been purified and its biological and physical properties described [6].
• Nucleotide sequence of the small subunit of ribulose-1,5-bisphosphate carboxylase from the conifer Larix laricina [7].

Biological context of Larix

• Identification of a novel factor, vanillyl benzyl ether, which inhibits somatic embryogenesis of Japanese larch (Larix leptolepis Gordon) [8].
• A cDNA clone encoding a MYBR2R3 protein from P. mariana with high levels of sequence homology to maize C1 was shown to transactivate the Bz2 promoter in combination with maize R in embryonal tissues of both black spruce and larch [9].

Anatomical context of Larix

• Shoot water status and ABA responses of transgenic hybrid larch Larix kaempferi x L. decidua to ectomycorrhizal fungi and osmotic stress [10].

Associations of Larix with chemical compounds

• The molecular activity of the purified xylanase A, determined with soluble larch xylan as substrate, was 1.4 X 10(5) min-1, with xylobiose and xylose as the major products [11].
• Anti-tumor-promoting rearranged abietane diterpenes from the leaves of Larix kaempferi [12].
• Thus, although flooded black spruce seedlings maintained a higher stomatal conductance and net assimilation rate than tamarack seedlings, black spruce did not cope with the deleterious effects of prolonged soil flooding and exogenous ethylene as well as tamarack [13].
• Although the wheat Em promoter was inducible in larch plantlets, it was not regulated by endogenous ABA [10].
• Embryogenic tissue of hybrid larch (Larix x marschlinsii Coaz) was multiplied on Medium M (modified MSG medium supplemented with the plant growth regulators (PGRs) 2,4-dichlorophenoxyacetic acid (2,4-D; 9 microM) and N-6-benzyladenine (2.25 microM)) [14].

Gene context of Larix

• Two novel rearranged abietane-type diterpene acids, karamatsuic acid (1) and larikaempferic acid (2) were isolated as their corresponding methyl esters, 1a and 2a, from the leaves of Larix kaempferi (Lamb.) Carr [12].
• The existence of L. speciosa in subclades 4clA(1) and 4clA(2) suggests that this species may represent a primitive form of Larix or the closest relative of the common ancestor of the Eurasian Sect. Multiserialis [15].
• The flow of labeled carbon in ectomycorrhizal and non-ectomycorrhizal seedlings of Japanese larch (Larix kaempferi Sarg.) and its F1 hybrid (Larix gmelinii Rupr. x L. kaempferi) was studied [16].
• Black spruce (Picea mariana (Mill.) BSP) and tamarack (Larix laricina (Du Roi) K. Koch) are the predominant tree species in the boreal peatlands of Alberta, Canada, where low nutrient availability, low soil temperature and a high water table limit their growth [13].
• The abundant LPD family in Larix will occur after its speciation [17].

References