The role of hydrogen peroxide(H2O2),nitro oxide(NO) and calcium(Ca2+) in stomatal closure of tobacco induced by elicitor PB90,a protein elicitor secreted by Phytophthora boehmeriae was investigated.

The data from epidermis strip bioassay indicated that methyl jasmonate (JA Me) of concentrations between 10 -3 and 10 -7 mol/L could induce stomatal closure to some degree.

The role of phospholipase D in the UV-B-induced stomatal closure was studied.

A new method of detecting the sulfur content in plant leaf, YX-DL type compact sulfur detector with fast, exact operating, character and low operation cost is described.

The modern agriculture and forest need high precision measurement of plant leaf, in order to confirm the best measure force, it needs exactitude measurement of elastic mould quantity of the plant.

【Objective】This paper gave a recognition approach,which combined the shape feature and the texture feature of the plant leaf,to effectively solve the problem that the classification features of traditional plant recognition were usually not synthetic and the recognition rate was always slightly low,hoping to provide technical reference for rapid machine recognition for plant.

Airborne dust detainment by different plant leaves: Taking Beijing as an example.;

A method for analyzing volatile constituents from plant leaves with gas chromatography/mass spectrometry(GC/MS) coupled with solid-phase microextraction(SPME) was developed.

Perchloric acid is used in extracting the fluoride content in plant leaves, which is socked in the TISAB combined with citric acid and sodium chloride.