摘要
对S-159-06菌株活性产物的抑菌谱及其拮抗机理作了初步研究,结果表明:S-159-06活性产物具有较广的抑菌谱,对多种病原真菌和细菌具有较好的抑制作用;S-159-06活性产物能强烈抑制病原菌菌丝的生长和孢子的萌发,可引起病原菌菌丝扭曲,菌丝膨大成串珠状,分枝增多,分枝顶端膨胀后细胞壁破裂,原生质外溢,产生溶菌作用;使分生孢子数减少,孢子萌发畸形,萌发率降低;在温室条件下,S-159-06活性产物不仅能阻止番茄灰霉病菌菌丝的入侵,而且在植物体内有内吸作用,对已侵入的菌丝有较好的治疗作用.
The inhibiting range and mechanism of the active product of S-159-06 was studied. The result showed that the active product of S-159-06 had a wide-range inhibition. It can control many fungi and bacterial disease. The strongly inhibition of the mycelia growth and spore germination lead to the mycelia twisted and inflated, the abnormal branching increased, the mycelia wall broke and the material of the cell let out, the spores was reduced and deformation. The rate of germination and length of the tube was decreased. The active product of S-159-06 not only can prevent the invasion of Botrytis cirerea mycelia, but also can be sucked into the plant which showed a good curing efficacy.
出处
《西北植物学报》
CAS
CSCD
2004年第6期1088-1092,共5页
Acta Botanica Boreali-Occidentalia Sinica
