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QUANTITATIVE CHANGES OF MINERAL ELEMENTS DURING NORMAL AND ABNORMAL (PILEUS-LESS) FRUITBODY DEVELOPMENT IN EDIBLE MUSHROOM, LENTINULA EDODES

食用菌、香菇正常和异常（无菌盖）子实体发育过程中矿物质元素的数量变化

基本信息

批准号：
03806016
负责人：
MATSUMOTO Teruyuki
金额：
$ 0.32万
依托单位：
JAPAN KINOKO RES.CTR.FOUNDATION
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1991
资助国家：
日本
起止时间：
1991 至 1992
项目状态：
已结题

项目摘要

Quantitative changes of mineral elements (N, P, K, Mg, Ca, Mn, Fe, Zn and Cu) in the fruitbodies and in the bedlogs of Lentinula edodes were investigated during normal and abnormal (pileus-less) fruitbody development. The contents of (w/w) these elements in young normal fruitbodies decreased gradually with the development. On abnormal fruitbodies, the content of Mn was higher than those in every developmental stages of normal fruitbodies, and the content of Ca was closed to that of young normal ones, whereas, the contents of other elements nearly equalled to those of pileus in normal fruitbodies just before rupture of a partial veil. The contents of Ca and Mn in bedlogs were more than 7 times, and N, P and K contents were less than 10% of those in normal mature fruitbodies. Amounts of most elements in bedlogs just under a fruitbody increased at early stages of development. Similar patterns of quantitative changes were found in area 4-10 cm apart from a fruiting spot in axial direction. These results suggest that elements in fruiting spot were accumulated from non-fruiting area of a bedlog during fruitbody development. No significant differences in the contents of elements were detected between the places just under an abnormal fruitbody and a normal one. Fruitbody yields were high in bedlogs and sawdust media fortified with N, P and K. However, increased absorption of these elements by this mushroom in the fortified substrates was negligible, compared with that in unfortified substrates. On the other hand, the contents of Ca and Mn in fruitbodies increased according to those of Ca and Mn in fortified substrate, which were higher than those of abnormal fruitbodies.

研究了香菇子实体发育过程中矿质元素(N、P、K、镁、钙、锰、铁、锌、铜)在子实体发育过程中的定量变化。这些元素(w/w)在幼龄正常子实体中的含量随着发育逐渐降低。畸形子实体中，锰的含量高于正常子实体各发育阶段的含量，而钙的含量与年轻的正常子实体接近，而其他元素的含量则接近正常子实体的菌盖含量，接近于部分面纱破裂前的水平。子实体中钙、锰的含量是正常成熟子实体的7倍以上，N、P、K的含量不到正常成熟子实体的10%。在发育的早期阶段，子实体下的菌根中的大多数元素的含量都会增加。在距果点4~10 cm的轴向上，数量变化规律与此相似。这些结果表明，在子实体发育过程中，果点中的元素是从原木的非果区积累而来的。异常子实体下和正常子实体下各元素含量差异不显著。在N、P、K强化的基质中，木耳和锯末基质的子实体产量较高，但与未强化的基质相比，强化基质中该蘑菇对这些元素的吸收增加很小。另一方面，子实体中的钙、锰含量随着强化基质中钙、锰含量的增加而增加，且高于异常的子实体。