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草业学报  2011 

内生真菌对感染锈病黑麦草生长和生理的影响

, PP. 150-156

Keywords: 多年生黑麦草,锈菌,内生真菌,抗病性

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Abstract:

在田间条件下对带内生真菌和不带内生真菌球道黑麦草品种被锈菌不同程度感染后的生长、光合特性和生理指标进行测定。结果表明,带内生真菌的植株无论感病轻重,其病叶损失率和植株矮化程度均显著低于不带内生真菌的植株(P<0.05)。并且在轻度和重度病株中,内生真菌可提高黑麦草叶片相对含水量、可溶性糖含量、叶绿素含量,净光合速率、蒸腾速率、气孔导度,叶内游离脯氨酸含量、超氧化物歧化酶与过氧化物酶的活性;同时有效地降低了丙二醛的含量,说明内生真菌的存在可提高寄主黑麦草在田间条件下的抗锈病能力。

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