Identification of disease resistance to Ustilago coicis in southern Coix germplasm / 中国中药杂志
China Journal of Chinese Materia Medica
; (24): 2950-2953, 2010.
Article
em Zh
| WPRIM
| ID: wpr-260712
Biblioteca responsável:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To identified the resistance of Coix to Ustilago coicis and screen the high disease-resistance Coix germplasm.</p><p><b>METHOD</b>Field and laboratory biochemical methods were used for the resistance identification. Ninteen germplasms collected from 7 provinces in southern of China such as Yunnan, Zhejiang, Fujian etc. were inoculated with chlamydospore of U. coicis, respectively. The incidence of a disease in field was investigated and the level of resistance was evaluated. The PAL activity dynamic changes in different level resistant germplasms were further determined.</p><p><b>RESULT</b>The result of field test showed 1 germplasm was immune, 1 germplasm was high resistance which incidence rate was under 20%, 6 germplasms were moderate resistance with the average incidence rates ranged within 20% - 40%, 11 of 19 germplasms that average incidence rates above 40% were identified as sensitive resistance. The value of PLA activity peak of resistant germplasm in seedling was significant higher and appeared earlier than that of the sensitive ones after inoculating.</p><p><b>CONCLUSION</b>Most collected C. lacryma-jobi germplasms are sensitive to smut in our investigation; the PAL activity may play important role in Coix germplasm for resistance to smut and the biochemical method may be as an aiding method to resistance identification of Coix germplasm.</p>
Texto completo:
1
Índice:
WPRIM
Assunto principal:
Fisiologia
/
Doenças das Plantas
/
Ustilago
/
China
/
Coix
/
Alergia e Imunologia
/
Imunidade Inata
/
Microbiologia
País/Região como assunto:
Asia
Idioma:
Zh
Revista:
China Journal of Chinese Materia Medica
Ano de publicação:
2010
Tipo de documento:
Article