Development of a plant-factory to produce useful materials of scarcity value.

龙舌兰是硬纤维的主要来源，也是某些类固醇的潜在来源，具有相当重要的经济价值。龙舌兰有三种自然的繁殖方式：1)珠芽，即发生在花序上的幼小植株；2)根茎，即从茎的底部产生的地下茎，在根茎的末端出现新的植物或分株；3)幼苗的建立，这在龙舌兰中是极其罕见的，尽管每个花序都能产生数千个种子。只有很小一部分太平洋龙舌兰是通过苗木繁殖的。本研究的具体目标是开发一种植物工厂化的龙舌兰生产系统，利用愈伤组织培育龙舌兰幼苗，并利用Simulink建立光合作用模型。利用该生物反应器进行了组织培养产生的愈伤组织和种子育苗的两种试验。小球茎生长成活率不高，种子苗生长变异较大。建立了光合作用模型，分析了模型的基本行为。需要进一步的研究才能完成模型研究。

As a major source of hard fiber and a potential source of certain steroids, Agave pacifica is of considerable economic importance. Agave pacifica has three natural ways of reproduction ; 1) bulbils which are young plantlets that occur on the inflorescence ; 2) rhizonmes which are underground stems generated from the base of the stems and at the end of which a new plant, or ramet, emerges ; and 3) seedling establishment which is extremely rare for Agave pacifica, even though each inflorescence can produce several thousands of seeds. Only a very small percentage of the Agave pacifica is propagated by seedlings. The specific objectives of the present study are to develop a plant-factory style production system for Agave pacifica, to cultivate its seedlings from cullus, and to develop a photosynthesis model by Simulink.The bioreactor system has been successfully designed and constructed. Two kinds of experiment has been conducted using cullus generated by tissue culture and seeds to grow seedlings using this bioreactor. The survival rate of the growth from cullus was not high and growth variation of seedlings from seeds was relatively large. The photosynthesis model has been developed and the basic model behavior was analyzed. Further study is needed to complete the model study.