您的位置: 首页 > 农业专利 > 详情页

PROCESS FOR SCREENING THE RESISTANCE OF MAIZE LINES TO CONTAMINATION WITH AFLATOXINS DURING VEGETATION
专利权人:
INSTITUTUL DE CERCETARE-DEZVOLTARE PENTRU PROTEC&TCEDILIA PLANTELOR
发明人:
OANCEA FLORIN,OANCEA FLORIN
申请号:
RO200800243
公开号:
RO123387B1
申请日:
2008.03.31
申请国别(地区):
RO
年份:
2012
代理人:
摘要:
The invention relates to a process of preliminary selection (screening) for the resistance of maize lines as regards the contamination with aflatoxins during vegetation, intended to be used in the improvement of maize crops. According to the invention, the process includes the following stages: finely grinding the grains to be analyzed, total extraction of proteins in citrate buffer at a pH = 5.5, for 1 h, in a maize grains : buffer ratio of 1 : 5, separating the vegetable material extract by centrifugation at 6000 x g, for 20 min, sterilizing the grain extract by ultrafiltration, aseptically depositing 0.02 ml of filtration-sterilized extract at the surface of a 1 ml well in a plate with 24 wells, containing 0.5 ml of a gelled culture medium, axenic inoculation of the gelled medium containing the protein extract with 0.01 ml of aflatoxigenic fungi spore suspension, incubation for 3 days, at 25°C, followed by examination of the intensity of fluorescence formed at an excitation wavelength of 350...360 nm and a reading wavelength of 450...460 nm.Prezenta invenţie se referă la un procedeu de selecţie preliminară (screening) a rezistenţei liniilor de porumb din punctul de vedere al rezistenţei la contaminarea cu aflatoxine în timpul vegetaţiei, destinat utilizării în activitatea de ameliorare a culturilor de porumb. Procedeul conform invenţiei include etapele de măcinare fină a boabelor analizate, extracţia totală a proteinelor în tampon citratH = 5,5, în raport de 1 parte boabe de porumb la 5 părţi tampon, timp de 1 h, separarea extractului de material vegetal prin centrifugare timp de 20 min, la 6000 x g, sterilizarea extractului de boabe prin ultrafiltrare, depunerea aseptică a 0,02 ml extract sterilizat prin filtrare la suprafaţa unui godeu de 1 ml dintr-o placă de 24 godeuri, în care se află 0,5 ml dintr-un mediu de cultură gelificat, inocularea axenică a mediului gelificat ce conţine extractul proteic cu 0,01 ml suspensie de spori de ciuperci aflatoxigene, in
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

意 见 箱

匿名:登录

个人用户登录

找回密码

第三方账号登录

忘记密码

个人用户注册

必须为有效邮箱
6~16位数字与字母组合
6~16位数字与字母组合
请输入正确的手机号码

信息补充