Effects of Exogenous Melatonin on Photosynthetic Characteristics of Capsella bursa-pastoris Seedlings under Salt Stress

DOI

10.2991/iceesd-18.2018.61How to use a DOI?

Keywords

Capsella bursa-pastoris; Melatonin; Salt stress; Photosynthetic characteristics

Abstract

A pot experiment was conducted to study the effects of spraying with 5 different concentrations (0, 50, 100, 150, 200 μmol·L-1) of exogenous melatonin (MT) on photosynthetic characteristics of C. bursa-pastoris seedlings under 50 mmol·L-1 NaCl stress. The results showed that spraying exogenous MT significantly increased the net photosynthetic rate (Pn), transpiration rate (Tr) and stomatal conductance (GS) of C. bursa-pastoris seedlings and all increased at first then decreased. The changes trend of the intercellular CO2 concentration (Ci) in the C. bursa-pastoris seedlings were contrary to that of Pn, Tr and Gs, and decreased with the increase of MT concentration. Therefore, spraying exogenous MT can improve the photosynthetic capacity of C. bursa-pastoris seedlings, which will help to improve the adaptability of C. bursa-pastoris, and the best concentration is 150 μmol·L-1.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Juan He
AU  - Guochao Sun
AU  - Yi Tang
PY  - 2018/05
DA  - 2018/05
TI  - Effects of Exogenous Melatonin on Photosynthetic Characteristics of Capsella bursa-pastoris Seedlings under Salt Stress
BT  - Proceedings of the 2018 7th International Conference on Energy, Environment and Sustainable Development (ICEESD 2018)
PB  - Atlantis Press
SP  - 358
EP  - 361
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceesd-18.2018.61
DO  - 10.2991/iceesd-18.2018.61
ID  - He2018/05
ER  -