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基于气体注射的光学方法高估了三种木质物种叶子对树叶栓塞的脆弱性

Francesco Petruzzellis¹, Azzurra Di Bonaventura², Enrico Tordoni³

¹Department of Life Sciences, University of Trieste, Via L. Giorgieri 10, Trieste 34127, Italy.

Tree physiology

|July 10, 2023

概括

长椅脱水是一种可靠的方法来测量植物叶子的液压脆弱性,与气体注射不同,由于工件可能会高估结果. 精确检测西伦栓塞需要长椅脱水,最好是在完整的植物上.

科学领域:

植物生理学植物生理学
耐旱耐受性耐旱耐受性耐旱耐受性
体栓塞是因为西伦体栓塞.

背景情况:

像P50这样的植物液压特征对于预测干旱影响至关重要.
需要用于测量叶子P50的快速和可靠的协议.
采用气体注射 (GI) 的光学方法是一种潜在的快速技术.

研究的目的:

使用基板脱水 (BD) 和GI.比较叶子光学脆弱性曲线 (OVcs).
评估GI对P50估计的可靠性.
通过微型CT成像验证光学数据.

主要方法:

在Acer campestre,Ostrya carpinifolia和Populus nigra中使用BD和GI测量了OVcs.
将光学数据与微型CT成像进行比较,用于Populus nigra.
在叶子中肋骨中分析了树叶栓塞.

主要成果:

在各个物种中,GI高估了与BD相比的叶子脆弱性.
在Ostrya carpinifolia和Populus nigra中,GI的过高估值更加明显.
微CT证实了BD结果,与Populus nigra.的GI发现相矛盾.

结论:

与GI的光学合方法可能无法可靠地量化由于"开放容器"工件而导致的叶子液压脆弱性.
长椅脱水是精确检测叶子静脉中的体栓塞的首选方法.
完整工厂的BD建议用于精确的液压脆弱性评估.

关键词:

喷气气体的注射方式叶子液压系统叶子液压系统在微型CT上,我们可以使用微型CT 这是一种光学方法.体栓塞是指体栓塞的发生.

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