【摘 要】
：
Samples of loropetalum(Loropetalum chinensis)with stem cankers were submitted for diagnosis to the UF and FDACS-DPI diagnostic laboratories from Alabama and
【机 构】
：
UniversityofFloridaDepartmentofPlantPathology,GainesvilleFLUniversityofFloridaDepartmentofPlantPatho
论文部分内容阅读
Samples of loropetalum(Loropetalum chinensis)with stem cankers were submitted for diagnosis to the UF and FDACS-DPI diagnostic laboratories from Alabama and Florida nurseries in 2012.A fluorescing bacterium was isolated from the cankers and a study commenced to determine the identity and host range of the bacterium.A collection of isolates from symptomatic loropetalum plants was tested by multi-locus sequence analysis(MLSA),BiologTM,fatty acid analysis,LOPAT,semi-selective culturing,and greenhouse inoculations.Partial 16S sequence analysis,semiselective culturing,Biolog,and fatty acid analysis were not able to differentiate the loropetalum pathogen from other related Pseudomonas species or pathovars.Inoculation studies confirmed that olive was not a host of the bacterium.MLSA with housekeeping and gall-formation genes confirmed that the bacterium is a new pathovar of Pseudomonas syringae,P.syringae pv.loropetali.
其他文献
The 70-kD heat shock proteins(Hsp70s)are highly conserved molecular chaperones that play essential roles in many cellular processes,including abiotic stress
Orchidaceae(orchids),with more than 20,000 species,is the largest family of monocots.They have great economic values because of their large,diverse,colorful
Salix psammophila and Caragana korshinskii are two typical native shrubs in the Mu Us Sandland,China.Both species not only play an important role in soil an
The transgenic ALDH21(Aldehyde dehydrogenase)cotton(Gossypium hirsutum)lines were used to test the drought tolerance and cotton yield in field condition.The
Background:Thecommon walnut(Juglans regiaL.),valued for both its nut and wood,is an ecologicallyimportant and temperate tree species native to the mountainous r
Background:Bryum argenteum is one of the most desiccation-tolerant bryophyte species,as well as a most important component of the Biological Soil Crusts(BSC
Background and aims The terminal branch orders of plant roots have been proposed as a short-livedephemeral modules specialized for resource absorption.The occur
本文对国标GB/T20574-2006蜂胶中总黄酮测定方法-分光光度法进行探讨,用该方法对高良姜素、白杨素、松属素、短叶松素和短叶松素-3-乙酸酯五种不同类型的蜂胶黄酮进行加样回
本试验研究了菊花花芽分化期超微弱发光、荧光和磷光发光强度以及核酸含量的变化.结果表明,菊花花芽分化起动期(Ⅱ)与未分化期(Ⅰ)相比,超微弱发光强度提高178.5％,荧光和磷光
The state of Florida has implemented nematode phytosanitary measures and certification programs that have protected agricultural interests for more than 40