Effects of Hydrophilicity and Hydrophobicity of Slides on Conidia Germination and Germ Tube Development of Setosphearia turcica
HU Jing-Jing1, LIU Zi-Yi1, HUANG Xiao-Han1, GAO Wen-Qiang1, CAO Zhi-Yan2, ZHOU Li-Hong1,*, DONG Jin-Gao1,2,*
1 College of Life Science, Hebei Agricultural University, Baoding 071000, China; 2 College of Plant Protection, Hebei Agricultural University, Baoding 071000, China
Abstract：Northern corn leaf blight (NCLB) occurrs on maize (Zea mays) leaf and is a foliar disease caused by Setosphaeria turcica. The physical properties of maize leaf, such as hardness, hydrophilicity, and hydrophobicity, can be perceived by S. turcica firstly when it infects maize leaves. The conidia germination rate, appressorium formation rate, lipid droplets, and glycogen distribution were observed. The results showed that the rate of conidia germination and appressorium formation on the hydrophobic substrate were higher than those on the hydrophilic substrate. The diameter of lipid droplets in germ tubes cultured on the hydrophilic substrate was larger than those cultured on the hydrophobic substrate. The distribution of glycogen in germ tubes was not significantly different. The surface morphology of the susceptible ('Xianyu 335') and resistant ('Zhengdan 958') variety to S. turcica was significantly different. The epicuticular wax layer of 'Zhangdan 958' leaf was rougher than that of 'Xianyu 335' leaf. These results indicated that the hydrophilicity of glass slide affects the development of the S. turcica conidia and provided data support for the breeding of maize.
胡净净, 刘子怡, 黄晓晗, 高文强, 曹志艳, 周丽宏, 董金皋. 载玻片的亲、疏水性对玉米大斑病菌分生孢子萌发与芽管发育的影响[J]. 农业生物技术学报, 2022, 30(1): 106-113.
HU Jing-Jing, LIU Zi-Yi, HUANG Xiao-Han, GAO Wen-Qiang, CAO Zhi-Yan, ZHOU Li-Hong, DONG Jin-Gao. Effects of Hydrophilicity and Hydrophobicity of Slides on Conidia Germination and Germ Tube Development of Setosphearia turcica. 农业生物技术学报, 2022, 30(1): 106-113.
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