Twenty-three temperate China species of Lachnum, Lachnum abnorme, L. angustum, L. brevipilosum, L. calosporum, L. calyculiforme, L. carneolum, L. ciliare, L. controversum, L. flavidulum, L. cf. fushanese, L. indicum, ...Twenty-three temperate China species of Lachnum, Lachnum abnorme, L. angustum, L. brevipilosum, L. calosporum, L. calyculiforme, L. carneolum, L. ciliare, L. controversum, L. flavidulum, L. cf. fushanese, L. indicum, L. kumaonicum, L. lushanese, L. minutum, L. montanum, L. cf. pteridophyllum, L. pygmaeum, L. sclerotii var. sclerotii, L. sclerotii var. sichuanense, L. subpygmeaum, L. tenuissimum, L. virgineum and L. willisii are reported, whose main characteristics are given in a formula of the described species, some of which are discussed below.展开更多
【目的】探明以甘油为碳源促进粒毛盘菌DP5积累多酚的可能原因。【方法】对碳源种类、甘油浓度、曲酸、抑制剂和前体等对多酚产量和生物量的影响进行分析。【结果】以甘油为碳源,能显著提高粒毛盘菌胞外多酚产量。甘油浓度为20 g/L时,...【目的】探明以甘油为碳源促进粒毛盘菌DP5积累多酚的可能原因。【方法】对碳源种类、甘油浓度、曲酸、抑制剂和前体等对多酚产量和生物量的影响进行分析。【结果】以甘油为碳源,能显著提高粒毛盘菌胞外多酚产量。甘油浓度为20 g/L时,胞外多酚产量最高,达到0.664 g GAE/L,并在发酵液中检测到曲酸,其含量为0.25 g/L。向以蔗糖为碳源的发酵液添加曲酸,胞外多酚含量从0.209 g GAE/L提高至0.376 g GAE/L。以甘油为碳源的发酵液中,酚氧化酶活性较低。粒毛盘菌DP5通过莽草酸途径和聚酮途径合成多酚,甘油有利于莽草酸途径和聚酮途径前体物质的合成。【结论】粒毛盘菌以甘油为碳源合成出曲酸,曲酸抑制多酚向黑色素的转化;甘油促进多酚前体的合成,从而提高了粒毛盘菌胞外多酚的积累量。展开更多
基金Project supported by the Natural Science Foundation of AnhuiProvince (No. 050430502) and Education Department of AnhuiProvince (No. 2004kj045), China
文摘Twenty-three temperate China species of Lachnum, Lachnum abnorme, L. angustum, L. brevipilosum, L. calosporum, L. calyculiforme, L. carneolum, L. ciliare, L. controversum, L. flavidulum, L. cf. fushanese, L. indicum, L. kumaonicum, L. lushanese, L. minutum, L. montanum, L. cf. pteridophyllum, L. pygmaeum, L. sclerotii var. sclerotii, L. sclerotii var. sichuanense, L. subpygmeaum, L. tenuissimum, L. virgineum and L. willisii are reported, whose main characteristics are given in a formula of the described species, some of which are discussed below.
文摘【目的】探明以甘油为碳源促进粒毛盘菌DP5积累多酚的可能原因。【方法】对碳源种类、甘油浓度、曲酸、抑制剂和前体等对多酚产量和生物量的影响进行分析。【结果】以甘油为碳源,能显著提高粒毛盘菌胞外多酚产量。甘油浓度为20 g/L时,胞外多酚产量最高,达到0.664 g GAE/L,并在发酵液中检测到曲酸,其含量为0.25 g/L。向以蔗糖为碳源的发酵液添加曲酸,胞外多酚含量从0.209 g GAE/L提高至0.376 g GAE/L。以甘油为碳源的发酵液中,酚氧化酶活性较低。粒毛盘菌DP5通过莽草酸途径和聚酮途径合成多酚,甘油有利于莽草酸途径和聚酮途径前体物质的合成。【结论】粒毛盘菌以甘油为碳源合成出曲酸,曲酸抑制多酚向黑色素的转化;甘油促进多酚前体的合成,从而提高了粒毛盘菌胞外多酚的积累量。
