Disease relevance of Poa

• Here we describe the construction and characterization of a strain of the cyanobacterium Synechocystis sp PCC 6803 in which the three endogenous psbA genes are replaced by a single psbA gene from the chloroplast genome of the higher plant Poa annua [1].
• The role of clp-regulated factors in antagonism against Magnaporthe poae and biological control of summer patch disease of Kentucky bluegrass by Lysobacter enzymogenes C3 [2].

High impact information on Poa

• The RAAC protein consisted of the truncated beta-galactosidase (beta-gal), linked at its C terminus to a polypeptide representing the conserved region of the recombinant Kentucky Bluegrass allergen encoded by the cDNA clone KBG8.3(rKBG8.3) [3].
• Accordingly, most of TES- and Poa p IX-specific T cell clones derived from cultures containing IFN-gamma or IFN-alpha displayed strong cytolytic activity [4].
• Recognition of a site of a Kentucky bluegrass pollen allergen by antibodies in the sera of allergic and non-atopic humans and a murine monoclonal antibody [5].
• SERK and APOSTART. Candidate genes for apomixis in Poa pratensis [6].
• Ethylene emission and responsiveness to applied ethylene vary among Poa species that inherently differ in leaf elongation rates [7].

Biological context of Poa

• Strain C5 was also reduced in the ability to suppress summer patch disease on Kentucky bluegrass, supporting a role for the enzyme in the biocontrol activity of S. maltophilia [8].
• We assessed the contribution of UV-induced violet-blue-green leaf fluorescence to photosynthesis in Poa annua, Sorghum halepense and Nerium oleander by measuring UV-induced fluorescence spectra (280-380 nm excitation, 400-550 nm emission) from leaf surfaces and determining the monochromatic UV action spectra for leaf photosynthetic O2-evolution [9].
• Turfgrass mixtures containing endophytic perennial ryegrass and Kentucky bluegrass may provide resistance against A. ipsilon mainly through the physiological effects of Kentucky bluegrass on A. ipsilon growth and development, but possibly through the influence of endophytic perennial ryegrass on A. ipsilon movement and foraging behavior as well [10].

Anatomical context of Poa

• The use of insertion/deletion (indel) patterns from sequences of the trnL intron and trnL-F intergenic spacer (IGS) in finding plastid genome types of the genus Poa L. was studied [11].

Associations of Poa with chemical compounds

• Allergen 27 was isolated from the aqueous extract of Kentucky Bluegrass pollen (KBG-R) with a reversed immunosorbent prepared by coupling murine monoclonal antibody, Mab 27, to Sepharose 4B [5].
• Diffusates of Kentucky blue grass pollen exhibited very high substrate preference for arginine and lysine [12].
• Growth of Betula nana and Poa alpina was up to 51% and 41% greater, respectively, in the presence of Bartsia alpina litter than when grown with dwarf shrub litter (Vaccinium uliginosum, Betula nana and Empetrum nigrum subsp. hermaphroditum) [13].
• Expression and thrombin cleavage of Poa p IX recombinant allergens fused to glutathione S-transferase [14].
• The ophthalmic combination product of 0.05% naphazoline hydrochloride and 0.5% antazoline phosphate (Vasocon-A) was evaluated as an antiallergic agent in 100 subjects with a known allergic history to cat dander, ragweed, or bluegrass pollen [15].

Gene context of Poa

• IFN-alpha also shifted the TCR V beta repertoire of both Poa p9- and Lolium perenne group 1 (Lol p1)-specific T cell lines generated from the same patient and from a different grass-sensitive individual [16].
• Subcellular localization of the Poa semilatent virus cysteine-rich gammab protein was studied by using different approaches [17].
• Magnaporthe poae, a fungal pathogen of Kentucky bluegrass, expressed a subtilisin-like proteinase, proteinase Mp1, in the infected roots [18].
• The C(3) grass Poa trivialis and the C(4) grass Panicum maximum were grown in sand culture and received a complete nutrient solution with nitrogen supplied as 1.5 mol m(-3) NH(4)NO(3) [19].
• Many of the Phlp V reactive TCC (19 of 27; 70%) were stimulated additionally by other group V allergens isolated from Lolium perenne, Poa pratensis, and Dactylis glomerata [20].

Analytical, diagnostic and therapeutic context of Poa

• An allergenic component, designated as Allergen C, was isolated from the retentate (R) of the aqueous extract of defatted Kentucky blue grass (KBG) pollen by a combination of preparative isoelectrofocussing and gel filtration [21].
• SDS-PAGE analysis of two batches of Kentucky bluegrass pollen extracts demonstrated that there was considerable variability in allergen content of extracts, which in turn affected quantitation of specific IgE antibodies by different immunoassay procedures [22].

References