以有机硒为硒源栽培黄白侧耳初探

A Preliminary Study on the Cultivation of Pleurotus geesteranus in Medium Containing Organic Selenium

初步研究了不同质量分数的硒代蛋氨酸对黄白侧耳的发菌、出菇以及子实体硒含量的影响。结果表明，培养料中低质量分数的硒代蛋氨酸（0．05g/kg）对黄白侧耳菌丝的生长有明显的促进作用，较高质量分数的硒代蛋氨酸（0．7—1．0g／kg）对黄白侧耳菌丝的生长有一定抑制作用，菌丝长势较差。培养料的硒代蛋氨酸质量分数在0～0．8g／kg范围内，黄白侧耳均能正常出菇；较低质量分数的硒代蛋氨酸（0～0．4g／kg）对黄白侧耳子实体产量无明显影响，但在较高质量分数硒代蛋氨酸（0．6～0．8g／kg）的培养料上黄白侧耳子实体的产量却显著降低，说明较高质量分数的硒代蛋氨酸对黄白侧耳子实体的生长发育不利。通过测定黄白侧耳子实体的硒含量发现，子实体的硒含量与培养料中硒代蛋氨酸质量分数呈极显著正相关，硒代蛋氨酸质量分数为0．8g／kg的培养料上子实体的硒含量最高，达到11．43μg/g。

A preliminary study on the effect of different concentrations of Se-Met on mycelial growth, fruiting and fruit bodies＇ sele- nium content of Ple urotus geesteranus was conducted. The results showed that the low concentration of Se-Met （0.05 g/kg） in medium had a significant promoting influence on the mycelial growth of this fungus,while high concentrations of Se-Met （0.7 - 1.0 g/kg ）had cer- tain inhibitory effect. When the Se-Met concentration in medium was 0 - 0.8 g/kg, P. geesteranus could form normal fruit bodies. Lower concentrations of Se-Met （0 - 0.4 g/kg） had no significant effect on fruit bodies yield of P. geesteranus, but higher concentrations of Se-Met （0.6 - 0.8 g/kg） resulted in the yield decrease of mushroom. This indicated that higher concentrations of Se-Met had negative effect on fruit bodies＇ growth of P. geesteranus. By determining selenium content of/9. geesteranus fruit bodies, we found that the seleni- um content in P. geesteranus fruit bodies had significant positive correlation with the Se-Met concentration in medium, and the selenium content of fruit bodies harvested in the medium containing 0.8 g/kg Se-Met reached the highest value 11.43 μg/g.