简介:TheinteractionbetweenricehostanditspathogenXanthomonasoryzaepv.oryzae(Xoo)atcellularlevelwasstudiedbyusingaresistantsomaclonalmutantHX-3anditssusceptabledonorMinghui63.AfterinoculationwithXoostrainZhe173(Chinesepathotype|\).theactivityofsuperoxidedismutase(SOD)andperoxidase(POD)inthecallusofMinghui63wasincreaseddramatically,andtheactiveoxygen(O2^-)wasproducedatahigherrate;Meanwhile,thecallusgrewslowlywiththereductionofproteincontent.ComparedtotheactivityofSODandPOD.theproductionrateofO2^-andthefreshweightinHX-3callusvariedlittleaftertheinoculation.ItcouldbeproposedthatthereweregreatdifferencesbetweentheresistanceofHX-3andMighui63atcellularlevel.TherewasnodifferencedetectedconcerningresistancetobacterialleafblightinHX-3betweentheplantandthecallus.
简介:借鉴运用Best产业集群动态模型理论,并在剖析苏南HX村土地流转的五大动力因素(工业发展驱动、地价剪刀差驱动、比较利益驱动、政府推动、乡村权威驱动)的基础上,得出HX村土地流转动力机制形成、发展过程及作用机理,以此促进我国尚不完善的乡村土地流转理论和实践。