黄萎病是棉花生产中最具毁灭性病害之一,种植抗病品种是控制该病害最为有效途径之一.本试验通过花粉管通道法将hpa1Xoo基因导入陆地棉品系854,经多代选育获得了可稳定遗传表达hpa1Xoo基因且农艺性状稳定的2个棉花材料854-3和854-5.转hpa1Xoo基因棉花具有出苗快,长势较好,整齐度高；植株中等,株型松,茎秆毛少光滑,叶片大,叶色深绿,叶功能较好,结铃性较强,铃桃形,较大,吐絮畅的特点
我国梨产区种植的梨树普遍感染苹果茎沟病毒(Apple stem grooving virus,ASGV),对树势、产量和品质都有严重影响。目前,防治梨树病毒的有效措施是获得无病毒苗木,而热处理结合茎尖组织培养是获取无病毒苗的主要方法,但有关热处理脱除病毒的分子机理尚不清楚,严重影响了病毒的脱除效率。最近文献也报道了许多关于外界环境条件下植物寄主体内microRNA (miRNA)调控与病毒之间的互
Tomato spotted wilt virus (TSWV), the type member of the genus Tospovirus in the family Bunyaviridae, included three single-stranded RNA segments of L (8.9kb), M (4.8kb) and S (2.9kb).The L RNA is a n
Tobacco bushy top virus (TBTV) has a (+) ssRNA genome with 4152 nucleotides.The viral genome without 5-cap and 3-poly (A) encoded four putative open reading frames (ORFs),in which ORF1 (p35) and ORF2
Rice black-streaked dwarf virus (RBSDV), a member of the genus Fijivirus within the family Reoviridae, contained 10 segments of double stranded RNA genome, in which S7 and S9 are bicistronic RNA encod
Tobacco bushy top virus (TBTV), a member of Umbravirus, contains a positive single genomic RNA with 4152 nts.The genome of TBTV lacked 5cap and 3poly (A) tail and encoded4 proteins including component
With four specific primers of lipopetide antibiotics synthesis related genes, the Bacillus subtilis Czk1 genome genetic was tested, and crude extracts by Sephadex G25 column for purification,the resul
Bacillus subtilis ZSH-1 was isolated from the rhizosphere soil of poplars as a biocontrol agent for fungal phytopathogens.ZSH-1 exhibited cell wall-degrading and plant growth-promoting traits,probably
Previous studies have demonstrated that Plant pathogen Xanthomonas campestris pv.campestris (Xcc) produces cis-11-methyl-2-dodecenoic acid (diffusible signal factor [DSF]) as a cell-cell communication
Dark green islands (DGIs) surrounded by light green tissues (LGTs) are common leaf symptoms of plants that are systemically infected by various mosaic viruses.Inoculation of Cucumber mosaic virus (CMV