Effects of Exogenous Abscisic Acid on Photosynthesis of Capsella bursa-pastoris Under Salt Stress

DOI

10.2991/iceep-17.2017.207How to use a DOI?

Keywords

Capsella bursa-pastoris; Abscisic acid; Photosynthesis; Chlorophyll

Abstract

A pot experiment was carried out to study the effects of exogenous abscisic acid (ABA) on the photosynthesis of Capsella bursa-pastoris under salt stress. Under salt stress, the chlorophyll a, chlorophyll b and total chlorophyll contents of C. bursa-pastoris showed no obvious changes at low ABA concentrations (1 and 5 mol/L), but showed significant increases at high ABA concentrations (10 and 20 mol/L). The ABA treatments improved the chlorophyll a/b ratio and increased the carotenoid content of C. bursa-pastoris compared with those of the control. Only the 20 mol/L ABA dose significantly increased the Pn of C. bursa-pastoris compared with the control, while the other ABA concentrations showed no significant differences compared with the control. When the doses of ABA were 1 and 5 mol/L, the Tr and Gs values of C. bursa-pastoris showed no significant differences compared with their respective controls, while 10 and 20 mol/L ABA doses significantly increased the Tr and Gs. The Ci and Vpdl under ABA treatments showed no significant differences compared with their respective controls. Thus, high ABA concentrations could increase the photosynthetic ability of C. bursa-pastoris.

Copyright

© 2017, 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  - Yumei Tan
AU  - Jianhua Li
AU  - Huan Yao
AU  - Zicheng Lu
AU  - Maolin Chen
AU  - Mei Qing
AU  - Lijin Lin
PY  - 2017/06
DA  - 2017/06
TI  - Effects of Exogenous Abscisic Acid on Photosynthesis of Capsella bursa-pastoris Under Salt Stress
BT  - Proceedings of the 2017 6th International Conference on Energy and Environmental Protection (ICEEP 2017)
PB  - Atlantis Press
SP  - 1184
EP  - 1187
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceep-17.2017.207
DO  - 10.2991/iceep-17.2017.207
ID  - Tan2017/06
ER  -