| 张佳环1*，刘巍1，潘姣1，邵玺文2，王志春3，敖振超1，柳建1，刘畅1，马周杰1.苏打盐碱地水稻秆腐菌核病病原鉴定及其生物学特性[J].植物保护,2015,41(6):72-78. |
| 苏打盐碱地水稻秆腐菌核病病原鉴定及其生物学特性 |
| Pathogen identification and pathogenic biology of sclerotiniose blight of rice stem rot in sodium bicarbonate soils |
| 投稿时间：2014-11-11 修订日期：2015-04-07 |
| DOI： |
| 中文关键词: 苏打盐碱地 水稻秆腐菌核病 病原 菌核 特性 |
| 英文关键词:sodium bicarbonate soil sclerotiniose blight of rice stem rot pathogen sclerotia characteristics |
| 基金项目:“十一五”国家科技支撑计划重点项目(2009BADB3B03)；吉林省重大科技攻关专项 (20130204036NY) |
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| 中文摘要: |
| 对苏打盐碱地水稻秆腐菌核病原进行了分离、鉴定和生物学特性的研究。结果表明，该病原菌菌核黑色圆球状，表面凸凹形态，直径164~309 μm，内部褐色拟薄壁组织；分生孢子淡褐色，1～3个隔膜，大小为(32~76)μm×(5~22) μm；无性世代为Nakataea sigmoidea，有性世代为Magnaporthe salvinii。病原菌在25～30℃时生长较好，利用鼠李糖(P＜0.05)、硝酸钙(P＜0.05)和硫酸锌(P＜0.01)能力最强，在利用碳氮源和微量元素方面，与弱酸性和寒冷地水稻秆腐菌核病原存在差异。 |
| 英文摘要: |
| The biological characteristics of the pathogen causing sclerotiniose blight of rice stem rot was isolated, identified, and studied. The results showed that the pathogenic fungus sclerotia was black, knaggy, globular outside, 164-309 μm in diameter, and brown inside, and the pathogenic conidia were light brown, 1-3 septates, and (32-76)μm×(5-22)μm in size. The pathogenic asexual generation was Nakataea sigmoidea, and the sexual generation was Magnaporthe salvinii. The optimum temperature was from 25℃ to 30℃ for growth of the pathogen. Rhamnose (P＜0.05), calcium nitrate (P＜0.05), and zinc sulfate (P＜0.01)had significant promoting effect on the growth of the mycelia. The pathogen showed difference in the utilization of carbon source, nitrogen source, and microelements from the pathogens from non sodium bicarbonate soils. |
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