Relationships between vessel element anatomy and physiological as well as morphological traits of leaves in Fagus crenata seedlings originating from different provenances
Relationships between vessel element anatomy and physiological as well as morphological traits of leaves in Fagus crenata seedlings originating from different provenances
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DOI：
10.1007/s00468-007-0178-3
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发表时间：
2008-04-01
影响因子：
2.3
通讯作者：
Kubo, Takafumi
中科院分区：
文献类型：
--
作者：
Bayramzadeh, Vilma;Funada, Ryo;Kubo, Takafumi
我们试图观察在统一环境条件下生长的七个不同种源的水青冈幼苗的导管元件解剖学以及叶片的生理和形态特征的差异。我们还研究了水青冈幼苗导管元件的解剖特征与叶片的生理和形态特征之间的关系。为了进行实验，从东京大学秩父研究林制备了水青冈样本。对于血管元素的解剖学研究，测量了每毫米（2）的血管数量、平均血管面积以及从髓部到树皮侧的血管面积百分比。我们还测量了蒸腾速率、气孔导度、叶面积、叶厚度、单位叶面积的叶干质量和叶密度，以进行叶面研究。不同种源的导管成分的解剖特征以及叶片的生理和形态特征存在显着差异。此外，我们发现叶片特征不仅与每毫米导管数量 (2) 之间存在显着相关性，而且还与导管面积百分比和（导管面积）(2) 之和（从髓心到树皮侧的理论水力传导率）之间存在显着相关性。因此，我们得出结论，叶子的生理和形态特征随种源变化而发生的变化与每毫米（2）的导管数量相对应，该参数决定了水青冈（Fagus crenata）作为散孔硬木的总导管面积和随之而来的水力传导性。
We attempted to observe differences in vessel element anatomy, and physiological and morphological traits of leaves in Fagus crenata seedlings originated from seven different provenances grown under the uniform environmental conditions. We also investigated the relationships between the anatomical characteristics of the vessel elements and physiological plus morphological traits of leaves in Fagus crenata seedlings. To carry out the experiments, Fagus crenata samples were prepared from Chichibu Research Forest of Tokyo University. For anatomical studies of the vessel elements, vessel number per mm(2), average vessel area, and the percentage of vessel area from the pith to the bark side were measured. We also measured transpiration rate, stomatal conductance, leaf area, leaf thickness, leaf dry mass per unit leaf area and leaf density for foliar studies. The anatomical characteristics of the vessel elements as well as the physiological and morphological traits of leaves were noticeably different among provenances. In addition, we found significant correlations between the foliar characteristics not only with vessel number per mm(2), but also with vessel area percentage and sum of the (vessel area)(2), theoretical hydraulic conductivity, from the pith to the bark side. Therefore, we concluded that variations in physiological and morphological traits of leaves in response to provenance variation were in correspondence with vessel number per mm(2) as a parameter that determines the total vessel area and consequent water hydraulic conductance in Fagus crenata as a diffuse porous hardwood.