LIGNOCELLULOSE DECOMPOSITION BY SELECTED STREPTOMYCES STRAINS
LIGNOCELLULOSE DECOMPOSITION BY SELECTED STREPTOMYCES STRAINS
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DOI：
10.1128/aem.35.6.1041-1045.1978
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发表时间：
1978-01-01
影响因子：
4.4
通讯作者：
CRAWFORD, DL
中科院分区：
文献类型：
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作者：
CRAWFORD, DL
从以新闻纸为碳源和能源的30株放线菌中筛选出3株链霉菌，并对其木质纤维素降解能力进行了研究。所有3种链霉菌都能够特异性地将14 C标记的木质纤维素氧化为14 CO2。这些链霉菌攻击主要是纤维素（葡聚糖）的成分，其中25-40%之间演变为14 CO2在1025小时的孵育过程中，这取决于所使用的文化。木质素标记的木质纤维素也受到攻击，但程度较低，取决于所使用的培养物，高达约3.5%被氧化为14 CO2。纯化的14 C标记的磨木木质素被攻击，回收率高达17.7%的标签为14 CO2。这是第一个确凿的证据表明链霉菌可以分解木质素。
From 30 actinomycete cultures isolated by enrichment technique on agar media containing newsprint as a primary C and energy source, 3 Streptomyces strains were selected for characterization of their lignocellulose-decomposing abilities. All 3 streptomycetes were capable of oxidizing specifically 14C-labeled lignocelluloses to 14CO2. These Streptomyces attacked primarily the cellulosic (glucan) components, of which between 25-40% evolved as 14CO2 during 1025 h of incubation depending upon the culture used. Lignin-labeled lignocelluloses were also attacked, but to a lesser degree, with up to about 3.5% being oxidized to 14CO2 depending upon the culture used. Purified 14C-labeled milled-wood lignin was attacked, with recoveries of up to 17.7% of the label as 14CO2. This is the 1st conclusive evidence to show that streptomycetes can decompose lignin.