Morphological Differences in Silica Body Derived from Motor Cell of indica and japonica in Rice
Morphological Differences in Silica Body Derived from Motor Cell of indica and japonica in Rice
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DOI：
10.1270/jsbbs1951.40.495
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发表时间：
1990-12
期刊：
影响因子：
2.4
通讯作者：
Yo-ichiro Sato;H. Fujiwara;Teturo Udatsu
中科院分区：
文献类型：
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作者：
Yo-ichiro Sato;H. Fujiwara;Teturo Udatsu
植物蛋白石是从考古遗址中发掘出来的一种植物来源的硅质体(SiO_2)，已被用于分析与考古和古植物学研究相关的过去植被和农作物的各种特征。我们试图根据水稻品种活体硅体的形态特征来区分水稻品种和水稻品种，从而建立一种鉴定植物蛋白石是来源于水稻品种还是来源于水稻品种的方法学。在本试验中，96个品种根据Sato的判别函数(Z2，见Sato et al.1986)。从活叶中提取硅体，对每个品种的50个样品进行了图1所示的四个维度(a、b、c和d)的测量。硅体分为α型(较小的a、b和d，较大的b/a)和β型(与α型相反，见图1 Fujiwara，1976)。初步鉴定表明，典型籼稻硅化体表现为α类型，而典型粳稻硅体表现为β类型。为了以硅体形状表示品种变异，判别函数Z1计算如下：ZL=0.049(a+b)-0.019(C)+0.197(D)-4.792(b/a)-2.614
Plant opal, a plant-derived silica body (SiO2) excavated from archaeological sites, has been used to analyze various characteristics of past vegetation and crops relevant to the archaeological and palaeobotanical studies. We attempted to distinguish japonica varieties from indica ones based on the morphological features of the silica body extracted from living leaves of rice cultivars, so as to establish a methodology to determine whether plant opal was derived from indica or japonica varieties. In the present experiment, ninety-six cultivars classified into indica and japonica by SATO's discriminant function (Z2, see SATO et al. 1986) were exarnined. Silica bodies were extracted from living leaves, and four dimensions shown in Fig. 1 (a, b, c and d) were measured for 50 samples of each cultivar. Silica bodies were classified into the α-type (smaller a, b and d, and larger b/a) and β-type (reverse of α-type, see Fig. 1 FUJIWARA, 1976). A preliminary test revealed that the silica bodies of typical indica showed the α-type, while those of typical japonica the β-type. To represent the varietal variaiton in the shape of the silica body, the discriminant function Z1 was calculated as follows: Zl=0.049 (a+b)-0.019 (c)+0.197 (d)-4.792 (b/a)-2.614