穿心莲,胡椒枯萎病病原鉴定

IDENTIFICAATION OF THE PATHOGENS CAUSING WILT DISEASES OF THE COMMON ANDROGRAPHIS (Andrographis paniculata (Burmf. ) Nees. )AND BLACK PEPPER (Piper nigrum L. )

摘要: 对广东省２种重要的栽培药用植物：穿心莲及胡椒的估萎病进行了调查和鉴定。明确了２种药用植物病害的病原，并进一步对尖孢镰刀菌进行了专化型测定。根据形态，培养性状及致病性试验，鉴定出穿心莲枯萎病系由ＦｕｓｒｍｕｍａｘｙｓｐｏｒｕｍＳｃｈｌ．ｆ．ｓｐ．ａｎｄｒｏｇｒｐａｈｉｓＫ．Ｘ．ＺｈｏｕｅｔＰ．Ｘ．Ｃｈｉ，ｆ，ｓｐ．ｎｏｖ．引起，采用浸根接种获得成功。胡椒枯萎病系由Ｆ．ａｘｙｓｐａｒｕｍＳ
- 穿心莲 /
- 胡椒 /
- 枯萎病
Abstract: Wilt diseases of two cultivated medicinal plants in Guangdong province,the common an-drographis (Andrographis paniculata)wilt ,and black pepper (Piper nigrum) wilt ,were investigated and identified. Formae specialis of Fusarium oxysporum were studied . According to the tests morphology , cultural characters and pathogenecity, the wilt disease of common andrographis was caused by Fusarium oiysporum Schl. f. sp. andrographis K. X. Zhou & P. K. Chi,f. sp. nov. .for which impregnated inoculation method was available; the wilt of black pepper was caused by Fusarium oxysporum Schl. f. sp. piperis K. S. Zhou & P. K Chi f. sp. nov. that has close relation to root knot nematode disease. Both of them were formae specialis of Fusarium oxysporum.
- Common andrographis /
- Black pepper /
- Wilt