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不同环境条件和抗氧化剂处理对CmTERT表达的影响

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该文通过实时荧光定量PCR分析了不同条件和抗氧化剂对蛹虫草(Cordyceps militaris)菌株YJ端粒酶逆转录酶(C.militaris telomerase reverse transcriptase,CmTERT)基因转录水平的影响.分析结果表明:适宜的培养温度(22 ℃和25℃)有利于菌株YJ菌丝体生长和Cmtert转录,蓝光抑制Cmtert转录;高温(28、30和33℃)不利于菌株YJ菌丝体生长和Cmtert转录,蓝光促进Cmtert转录;但在30 ℃时,在菌株YJ菌丝中Cmtert转录水平急剧升高,推测与端粒高温损伤的诱导有关.维生素C(VC)、维生素E(VE)、β-烟酰胺单核苷酸(NMN)和白藜芦醇对在菌株YJ中Cmtert转录的影响更为明显,而对在菌株TN中Cmtert转录的影响不明显.因此,若蛹虫草交配型不同,则受抗氧化剂影响的Cmtert转录水平也有差异.
The Effects of Different Environmental Conditions and Antioxidant Treatments on CmTERT Expression
The effects of different conditions and antioxidants on C.militaris telomerase reverse transcriptase(CmTERT)gene transcription levels of C.militaris strain YJ are analyzed by real-time quantitative PCR.The re-sults show that the optimum culture temperature(22 ℃ and 25 ℃)is conducive to mycelial growth of strain YJ,and blue light inhibits the transcription of Cmtert.High temperature(28 ℃,30 ℃ and 33 ℃)is not conducive to mycelial growth and Cmtert transcription of strain YJ,and blue light promotes Cmtert transcription.However,at 30 ℃,the Cmtert transcription level in mycelium of strain YJ increases sharply,which is speculated to be related to the induction of telomere high-temperature damage.Vitamin C(VC),vitamin E(VE),β-nicotinamide mononu-cleotide(NMN)and resveratrol have more obvious effects on Cmtert transcription in strain YJ,but have less obvious effects on Cmtert transcription in strain TN.Therefore,the levels of Cmtert transcription affected by antioxidants are also different in C.militaris strain of different mating types.

Cordyceps militarisenvironmental conditionantioxidanttelomerase reverse transcriptase

张丹丹、彭静梅、黄紫妍、付鸣佳

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江西师范大学生命科学学院,江西南昌 330022

蛹虫草 环境条件 抗氧化剂 端粒酶逆转录酶

国家自然科学基金

31760601

2024

江西师范大学学报(自然科学版)
江西师范大学

江西师范大学学报(自然科学版)

CSTPCD北大核心
影响因子:0.538
ISSN:1000-5862
年,卷(期):2024.48(3)
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