Parsing of compositions and microstructure 1 characteristics for rust - spots of pear pericarp 2

8 The commercial value of Kurles pears pericarp, a popular and favored fruit for 9 its unique aroma and refreshingly crisp texture, had sharply decreased because 10 of a rust breakout of the beloved pear in China during the 11 atmosphere-controlled storage. High performance liquid chromatography 12 (HPLC) and liquid chromatography-mass spectrometry (LC-MS) were used to 13 analyze rust spots on the pericarp of Kurle pears. Therefore, the chemical 14 compounds of four various eluates, originating from the rust-colored substance 15 Received date: Fund program: This work was supported by not only National Nature Science Foundation of China (30860181 and 31560468), but also 12th Five-Year Degree Authorized Construction Discipline in Biology of Yunnan Province, the Superior and Characteristic Discipline in Biology of Chuxiong Normal University (05YJJSXK03), University-level Academic Backbone Training Project for Chuxiong Normal College (XJGG1603), key major construction projects on “biotechnology” for Chuxiong Normal College. Author: NAN Lijun (1973-), Man, Doctor, Research direction was focused on the grape physiology and wine production, E-mail: [email protected]. Corresponding author: CHEN Guogang, (1977-), Man, Doctor, Research direction was focused on the grape physiology and wine production, E-mail: [email protected]. NAN Lijun and CHEN Shaobo contributed equally to this paper for co-first author. . CC-BY-ND 4.0 International license peer-reviewed) is the author/funder. It is made available under a The copyright holder for this preprint (which was not . http://dx.doi.org/10.1101/142877 doi: bioRxiv preprint first posted online May. 27, 2017;