Nucleotide sequence of cDNA encoding the group II allergen of cocksfoot/orchard grass (Dactylis glomerata), Dac g II

Allergy ◽  
1993 ◽  
Vol 48 (8) ◽  
pp. 615-623 ◽  
Author(s):  
A. M. Roberts ◽  
L. J. Bevan ◽  
P. S. Flora ◽  
I. Jepson ◽  
M. R. Walker
1961 ◽  
Vol 41 (1) ◽  
pp. 211-216 ◽  
Author(s):  
J. T. Slykhuis

A number of cereals and other grasses were compared as hosts for different isolates of viruses causing Agropyron mosaic (AMV), wheat streak mosaic (WSMV), barley stripe mosaic (BSMV), ryegrass mosaic (RMV) and orchard grass mosaic (OMV). Lolium multiflorum L. was susceptible to all the viruses. The four varieties of wheat tested were highly susceptible to AMV, WSMV and BSMV, but not to RMV or OMV. Clintland oats was susceptible to WSMV, RMV and OMV but not to AMV or BSMV. Lolium perenne L. and Dactylis glomerata L. were infected by RMV and OMV only, Agropyron repens L. Beauv. by AMV only, and Setaria italica L. Beauv. by BSMV only. Brant and Husky barley were slightly susceptible to AMV, but seven other varieties appeared immune. Unusual host records include the infection of Setaria lutescens (Weigel) Hubb. and one plant of Agropyron smithii Rydb. with WSMV, and the infection of Agropyron intermedium (Host) Beauv. with BSMV. A list of differential hosts is proposed.


1994 ◽  
Vol 242 (4) ◽  
pp. 389-396 ◽  
Author(s):  
Volker Knoop ◽  
Sebastian Kloska ◽  
Axel Brennicke

1999 ◽  
Vol 89 (7) ◽  
pp. 568-574 ◽  
Author(s):  
K. Reanwarakorn ◽  
J. S. Semancik

Citrus viroid (CVd) group II is comprised of hop stunt viroid (HSVd)-related variants of 295 to 302 nucleotides. Included in this group are the cachexia-inducing agents citrus cachexia viroid (or CVd-IIb), CVd-IIc, Ca-903, and Ca-909 as well as the non-cachexia-inducing variant CVd-IIa. The cachexia indexing hosts ‘Parson's Special’ mandarin and ‘Orlando’ tangelo as well as Citrus macrophylla responded with symptoms of gumming, discoloration, and stem pitting when infected by CVd-IIb, CVd-IIc, or Ca-903. However, ‘Palestine’ sweet lime, the indicator host used to describe the xyloporosis disease, displayed a distinctly different fine-pitting reaction and no discoloration or gumming when infected by the same viroids. Cachexia-inducing variants contain a number of nucleotide changes more similar to hop-type HSVd sequences than to the citrus-type HSVd sequences, as typified by CVd-IIa. The nucleotide sequence of CVd-IIc was identical to CVd group II isolates common to trees expressing xyloporosis. Experimental evidence indicates that either CVd-IIb or CVd-IIc can cause citrus diseases known as cachexia and xyloporosis and that the two disease designations reflect the distinct responses of different indexing hosts to the same viroids.


1977 ◽  
Vol 57 (2) ◽  
pp. 615-616 ◽  
Author(s):  
M. R. HANNA ◽  
S. SMOLIAK ◽  
D. B. WILSON

Chinook is a winterhardy cultivar of orchard grass (Dactylis glomerata L.) developed by the late R. W. Peake at the Agriculture Canada Research Station, Lethbridge, Alberta. It was released in 1959, but a full description of this cultivar was not published.


1977 ◽  
Vol 57 (3) ◽  
pp. 763-770
Author(s):  
H. T. KUNELIUS ◽  
MICHIO SUZUKI

Frode orchard grass (Dactylis glomerata L.) was fertilized with 99–495 kg N/ha/yr in three equal applications and harvested three or four times per season over a 3-yr period to determine the productivity, quality of forage and persistence of stands. The application of N resulted in significant (P =.001) linear and quadratic increases in dry matter (DM) yields. Higher DM yields were obtained with the 3-harvest system while the yield distribution within the season was more uniform for the 4-harvest system. Total N concentrations of orchard grass increased linearly with the N rates. Total N yields were dependent on the rates of applied N with the recovery of applied N ranging from 39 to 70% at 99–297 kg N/ha/yr, respectively. The in vitro disappearance of DM was slightly reduced by the high N rates in the 1st and 2nd harvests. The nitrate-N concentrations were highest in the early and late summer ranging from.11 to.29% at 297–495 kg N/ha/yr, respectively. The persistence of orchard grass was better under the 4- than the 3- harvest system.


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