Pure Photosynthates Extraction Sensor Device with Highly Precise Phloem/Xylem Position Identification
Pure Photosynthates Extraction Sensor Device with Highly Precise Phloem/Xylem Position Identification
复制标题
具有高精度韧皮部/木质部位置识别的纯光合产物提取传感器装置
DOI：
10.1109/jsen.2017.2787112
复制
发表时间：
2018
影响因子：
4.3
通讯作者：
and F. Shimokawa
中科院分区：
文献类型：
--
作者：
A.Ono;H.Ishizuka;K.Terao;H.Takao;T. Kobayashi;I. Kataoka;and F. Shimokawa
我们提出了一种结合高精度韧皮部/木质部位置识别的纯光合产物提取传感器装置，以定量监测高等植物内部成分，这是控制作物稳定生产的关键指标。该装置的基本功能是基于电导率高精度识别韧皮部/木质部位置和提取纯韧皮部汁液。我们利用微机电系统技术制作了该装置，并对其有效性进行了评估。经证实，我们制造的电导率传感器的性能几乎等于市售仪表的性能。（这些特征线的误差小于5%。）对黄瓜茎的实验证实，该装置可以在植物内部或土壤的适当范围内（0.0 ~ 1.0 mS/cm）精确测量韧皮部/木质部汁液的电导率，并能长期稳定地确定其位置。提取实验表明，植物内部的韧皮部汁液很容易流入提取通道和储存库。因此，我们清楚地证明了一种新型传感器装置的可行性，该装置可以在农业情况下方便地识别韧皮部位置并提取纯光合产物样品。
We propose a pure photosynthates extraction sensor device integrated with highly precise phloem/xylem position identification to quantitatively monitor the components of internal higher plants, which is a key indicator for controlling stable crop production. The essential functions of the device are high-precisely identifying phloem/xylem positions based on electrical conductivity and extracting pure phloem sap. We fabricated the proposed device with microelectromechanical systems technology and evaluated its effectiveness. It is confirmed that the performance of our fabricated electrical conductivity sensor is almost equal to that of a commercially available meter. (The error of these characteristic lines is less than 5%.) Experiments with cucumber stems confirmed that the device can precisely measure the electrical conductivity of phloem/xylem sap in the appropriate range of internal plants or soil (0.0-1.0 mS/cm), identifying their positions stably over a long period. Extraction experiments demonstrated that phloem sap from the internal plant flows readily into the extraction flow channel and a reservoir. Therefore, we clearly demonstrated the feasibility of a novel sensor device that can conveniently identify the phloem positions and extract pure photosynthates samples in agricultural situations.