Bulliform Phytolith Research in Wild and Domesticated Rice Paddy Soil in South China.
Bulliform Phytolith Research in Wild and Domesticated Rice Paddy Soil in South China.
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华南野生和驯化水稻土中泡状植硅体的研究
DOI：
10.1371/journal.pone.0141255
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发表时间：
2015
期刊：
影响因子：
3.7
通讯作者：
He K
中科院分区：
文献类型：
--
作者：
Huan X;Lu H;Wang C;Tang X;Zuo X;Ge Y;He K
鳞状植物岩在水稻起源研究中起着重要的作用，因为它们可以用来区分野生稻和驯化稻。水稻球状植物岩的特征是在侧面有许多小而浅的鱼鳞装饰。先前的研究表明，驯化水稻具有比野生水稻更多的这些装饰，并且这些装饰的数量≥9是鉴定驯化水稻的有用特征。然而，这一标准是基于有限的现代水稻样本建立的。在这项研究中，我们分析了野生稻田和驯化稻田的土壤样本。结果表明，在野生稻土样品中，具有≥9个纹饰的球状植物岩所占比例为17.46%±8.29%，而在驯化稻土样品中，相应比例为63.70%±9.22%。这表明，具有≥9个纹饰的植物岩的比例可以作为史前土壤中野生水稻和驯化水稻的判别标准。该指标对提高鱼鳞装饰在水稻起源研究和水稻驯化过程中的应用具有重要意义。
Bulliform phytoliths play an important role in researching rice origins as they can be used to distinguish between wild and domesticated rice. Rice bulliform phytoliths are characterized by numerous small shallow fish-scale decorations on the lateral side. Previous studies have shown that domesticated rice has a larger number of these decorations than wild rice and that the number of decorations ≥9 is a useful feature for identifying domesticated rice. However, this standard was established based on limited samples of modern rice plants. In this study, we analyzed soil samples from both wild and domesticated rice paddies. Results showed that, in wild rice soil samples, the proportion of bulliform phytoliths with ≥9 decorations was 17.46% ± 8.29%, while in domesticated rice soil samples, the corresponding proportion was 63.70% ± 9.22%. This suggests that the proportion of phytoliths with ≥9 decorations can be adopted as a criterion for discriminating between wild and domesticated rice in prehistoric soil. This indicator will be of significance in improving the application of fish-scale decorations to research into rice origins and the rice domestication process.