摘要
炭疽病是枣树生长发育过程中的常见病害之一,全面掌握枣树炭疽病的生长情况可为其综合防治提供必要的理论依据。本文以枣树炭疽病菌为试验材料,研究不同碳源、氮源对枣树炭疽病菌菌丝生长、孢子萌发以及菌丝干质量的影响。结果表明,葡萄糖、果糖、麦芽糖、蔗糖和可溶性淀粉这5种碳源对该病原菌的生长具有显著的影响,其中葡萄糖为碳源时菌丝长势最佳,生长速率可达10.04 mm/d;可溶性淀粉为碳源时产孢量最多,为5.33×10^(6)个,菌丝干质量最大可达0.41 g。硝酸钠、尿素、硝酸钾、硫酸铵和谷氨酸这5种氮源对该病原菌的生长同样具有显著的影响,其中硝酸钠为氮源时菌丝长势最佳,生长速率可达9.29 mm/d,产孢量为8.33×10^(6)个;谷氨酸为氮源时,菌丝干质量最大,为0.49 g。
Glomerella cingulata is one of the common diseases in the growth and development of jujube trees.Taking G.cingulata as material,the integrated effects of different carbon and nitrogen sources on mycelium growth,spore production and mycelial dry weight of G.cingulata were studied.The results showed that glucose,fructose,maltose,sucrose and soluble starch had significant effects on the growth of this pathogen,and the mycelium grew best with glucose as carbon source,and the growth rate reached 10.04 mm/d.When starch was the carbon source,the spore yields was maximum(5.33×10^(6)),and dry weight of mycelia was the heaviest(0.41 g).The five nitrogen sources of sodium nitrate,urea,potassium nitrate,ammonium sulfate and glutamic acid also had significant effects on the growth of this pathogen.The mycelia grew best with sodium nitrate as the nitrogen source,the growth rate was up to 9.29 mm/d and the spore yields was 8.33×10^(6).The dry weight of mycelia was the heaviest(0.49 g),when glutamic acid was the nitrogen source.
作者
张苗
曹俊宇
ZHANG Miao;CAO Junyu(College of Plant Protection,Shanxi Agricultural University,Taiyuan 030001,China;Lvliang University,Lvliang 033000,China)
出处
《中国果菜》
2022年第12期79-84,共6页
China Fruit & Vegetable
基金
山西省高等学校科技创新项目(2020L0679)
吕梁市引进高层次科技人才重点研发项目(Rc2020-114)。
关键词
枣树炭疽病菌
碳源
氮源
菌丝
孢子
G.cingulata
carbon sources
nitrogen sources
mycelium
spore
作者简介
第一作者:张苗(1984-),女,助理研究员,本科,主要从事植保技术研究与推广工作;通信作者:曹俊宇(1991-),女,副教授,博士,主要从事病虫害生态与防治方面的工作。
