Plant water availability and analytical microscopy of phytoliths: Implications for ancient irrigation in arid zones
Plant water availability and analytical microscopy of phytoliths: Implications for ancient irrigation in arid zones
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DOI：
10.1016/j.quaint.2007.06.012
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发表时间：
2009-01-01
影响因子：
2.2
通讯作者：
Moore, M.
中科院分区：
文献类型：
--
作者：
Madella, M.;Jones, M. K.;Moore, M.
水的供应和水的管理对史前农业的生态至关重要。一般来说，草（Gramineac）和特别是谷物是在细胞内和细胞间隙（作为称为植硅体的离散体）中具有最高蛋白石二氧化硅沉积的植物。本研究试图建立一个生物蛋白石二氧化硅从谷物和植物水条件下，它已经形成之间的相关性。一个两步的实验过程中，开发检查植硅体生产（固定和敏感的形式）在不同的条件下的水的可用性和了解水结合在蛋白石二氧化硅网纹。从这项研究中提出的第一个结果表明，有一些变化植硅石生产根据水分制度下，植物生长和敏感的形式显示直接受水分制度至少在面包小麦（小麦aestivian），二粒小麦（小麦二粒）和2行大麦（大麦）。此外，植硅体的X射线分析表明，在敏感形式的生物蛋白石基质中的水分子的化学结合与植物生长过程中的水的可用性。(C)2007 Elsevier Ltd和INQUA。All rights reserved.
Water availability and water management have been critical to the ecology of prehistoric agriculture. Grasses (Gramineac) in general and cereals in particular are among the plants with the highest deposition of opal silica both inside the cells and also in the intercellular space (as discrete bodies called phytoliths). This study attempts to establish a correlation between biogenic opal silica from cereals and the plant-water conditions under which it has formed. A two-step experimental process was developed to check phytolith production (fixed and sensitive forms) under different conditions of water availability and to understand water binding in the opal silica reticule. The first results presented from this study show that there is some variability in phytolith production according to the water regime under which the plant grew and sensitive forms show to be directly influenced by the water regime at least in bread wheat (Triticum aestivian), emmer wheat (Triticum dicoccum) and 2-row barley (Hordeum distichon). Also, phytolith X-ray analysis of T aestivum shows that chemical bounding of water molecules in the biogenic opal matrix of the sensitive forms is associated with water availability during the plant growth. (C) 2007 Elsevier Ltd and INQUA. All rights reserved.