绿色木霉菌T23对微量元素吸收利用的初步研究

利用原子吸收光谱和常规生长量测定法,研究了木霉菌T23对7种微量元素Mn2+、Ca2+、Mg2+、Cu2+、Zn2+、Fe2+、Mo6+的吸收利用及7种微量元素对木霉菌T23生长的影响。结果表明:木霉菌T23对7种微量元素的吸收率存在明显差异,能够大量吸收Mg2+、Zn2+、Cu2+、Ca2+、Mn2+和Fe2+,基本不吸收Mo6+元素。在微量元素对木霉菌T23生长的影响方面,则表现为Ca2+、Mn2+、Zn2+可不同程度地促进木霉菌T23产孢,Cu2+、Mn2+、Mg2+、Ca2+、Zn2+在组合培养基中促进木霉菌T23菌丝生长,Mo6+抑制木霉菌T23的菌丝生长和产孢。

Preliminary Study of Trichoderma viride T23 on the Absorption and Utilization of Microelements

Using atomic absorption spectrometry and the conventional measurement method of growth,the effect of Trichoderma T23 on the absorption,utilization and growth of Mn2+,Ca2+,Mg2+,Cu2+,Zn2+,Fe2+and Mo6+ were studied in the present study.The results showed that the utilization percents of Trichoderma T23 to Mg2+,Zn2+,Cu2+,Ca2+,Mn2+,Fe2+ and Mo6+were significantly different.Trichoderma T23 can largely absorb Mg2+,Zn2+,Cu2+,Ca2+,Mn2+ and Fe2+,but can not use Mo6+ in PD and compound culture media.On the effect of microelements on the growth of Trichoderma T23,Ca2+,Mn2+ and Zn2+ could promote sporulation of Trichoderma T23.Cu2+,Mn2+,Mg2+,Ca2+ and Zn2+ could promote mycelium growth of Trichoderma T23 in compound culture media.Mo6+ could inhibit mycelium growth and sporulation of Trichoderma T23.