5Liang J, Zhang J. Collection of xylem sap at flow rate similar to in vivo transpiration flux[J]. Plant Cell Physlol. 1997,38(12) 51375-1381.
6Victor G. Mihucz, Eniko. Tat' at, Anita Varga, et al. Application of total- reflection X- ray fluorescence spectrometry and high-performance liquid chromatography for the chemical characterization of xylem saps of nickel contaminated cucumber plants[J]. Sectrochimica Acta Part B. 2001, (56) :2235- 2246.
7H. Iwai, M. Usui, H. Hoshino, et. al. Analysis of sugars in squash xylem sap. Plant Cell Physiol[J]. 2003,44 :582- 587.
9A. Oda, C. Sakuta, H. Kamada, et al. Xylem sap lectin,XSP30, recognizes GlcNAc sugar chains of glycoproteins in cucumber leaves[J]. Plant Biotech. 2003, 20:67 - 74.