Next Article in Journal
Effects of Straw-Return Method for the Maize–Rice Rotation System on Soil Properties and Crop Yields
Next Article in Special Issue
Effect of Soil Salinity and Foliar Application of Jasmonic Acid on Mineral Balance of Carrot Plants Tolerant and Sensitive to Salt Stress
Previous Article in Journal
A Comparison of Selected Biochemical and Physical Characteristics and Yielding of Fruits in Apple Cultivars (Malus domestica Borkh.)
Open AccessArticle

Effects of Exogenous Spermidine on Root Metabolism of Cucumber Seedlings under Salt Stress by GC-MS

by Bing Liu 1,2,†, Xujian Peng 3,†, Lingjuan Han 1, Leiping Hou 1 and Bin Li 1,*
Collaborative Innovation Center for Improving Quality and Increase Profits of Protected Vegetables in Shanxi, College of Horticulture, Shanxi Agricultural University, Taigu 030801, China
Collaborative Innovation Center of Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing 210037, China
Department of Public Order, Nanjing Forest Police College, Nanjing 210023, China
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Agronomy 2020, 10(4), 459;
Received: 20 February 2020 / Revised: 21 March 2020 / Accepted: 23 March 2020 / Published: 26 March 2020
To investigate the effects of exogenous spermidine (Spd) on metabolism changes under salt stress in cucumber roots, a gas chromatography-mass spectrometry (GC-MS) was performed. The results showed that most of the 142 metabolites responded to salt stress or exogenous Spd treatment. Salt stress reduced carbon consumption, resulted in the transformation of glycolysis and the tricarboxylic acid (TCA) cycle to the pentose phosphate pathway (PPP), and meanwhile increased salicylic acid (SA) and ethylene synthesis, and, thus, inhibited the growth of seedlings. However, exogenous Spd further improved the utilization of carbon, the energy-saving pattern of amino acid accumulation, and the control of hydroxyl radicals. In conclusion, Spd could promote energy metabolism and inhibit SA and ethylene synthesis in favor of root growth that contributes to higher salt tolerance. This study provides insight that may facilitate a better understanding of the salt resistance by Spd in cucumber seedlings. View Full-Text
Keywords: spermidine; salt stress; roots; metabolomics; cucumber spermidine; salt stress; roots; metabolomics; cucumber
Show Figures

Figure 1

MDPI and ACS Style

Liu, B.; Peng, X.; Han, L.; Hou, L.; Li, B. Effects of Exogenous Spermidine on Root Metabolism of Cucumber Seedlings under Salt Stress by GC-MS. Agronomy 2020, 10, 459.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

Search more from Scilit
Back to TopTop