Genotype effects on internal gas gradients in apple fruit
Genotype effects on internal gas gradients in apple fruit
复制标题
DOI：
10.1093/jxb/erq108
复制
发表时间：
2010-06-01
影响因子：
6.9
通讯作者：
Nicolai, Bart M.
中科院分区：
文献类型：
--
作者：
Ho, Q. Tri;Verboven, Pieter;Nicolai, Bart M.
应用渗透-扩散-反应模型研究了形态和呼吸代谢对Kanzi、Jonagold和Braeburn苹果果实气体交换的影响。测定了果实器官组织的气体交换特性和呼吸参数。从数字水果图像重建水果的实际内部组织几何形状，并使用有限元方法在该几何形状上求解模型。该模型进行了验证的基础上测量的内部气体浓度和气体流量的水果，其环境。这两个测量和计算机模拟研究表明，梯度的代谢气体存在于苹果果实中，这取决于不同品种的扩散特性和呼吸。宏观模拟证实，Jonagold有很大的潜力，控制气氛（CA）存储，而低扩散性能的皮层组织在Braeburn表示存储障碍的发展风险。与Braeburn相比，Kanzi在CA储存时具有较少的O-2缺氧。
A permeation-diffusion-reaction model was applied to study gas exchange of apple fruit (Kanzi, Jonagold, and Braeburn) as effected by morphology and respiratory metabolism. The gas exchange properties and respiration parameters of the fruit organ tissues were measured. The actual internal tissue geometry of the fruit was reconstructed from digital fruit images and the model was solved over this geometry using the finite element method. The model was validated based on measurements of internal gas concentrations and the gas flux of the fruit to its environment. Both measurements and an in silico study revealed that gradients of metabolic gases exist in apple fruit, depending on diffusion properties and respiration of the different cultivars. Macroscale simulation confirmed that Jonagold has large potential for controlled atmosphere (CA) storage while low diffusion properties of cortex tissue in Braeburn indicated a risk of storage disorder development. Kanzi had less O-2 anoxia at CA storage compared with Braeburn.