Piriformospora indica alters Na+/K+ homeostasis, antioxidant enzymes and LeNHX1 expression of greenhouse tomato grown under salt stress
Name:
1-s2.0-S0304423819304157-main.pdf
Size:
1.434Mb
Format:
PDF
Description:
Published version
Name:
1-s2.0-S0304423819304157-mmc1.docx
Size:
63.74Kb
Format:
Microsoft Word 2007
Description:
Supplemental files
Name:
1-s2.0-S0304423819304157-mmc2.docx
Size:
45.13Kb
Format:
Microsoft Word 2007
Description:
Supplemental files
Name:
1-s2.0-S0304423819304157-ga1.jpg
Size:
12.80Kb
Format:
JPEG image
Description:
Graphical abstract
Type
ArticleAuthors
Abdelaziz, Mohamed E.Abdelsattar, Mohamed
Abdeldaym, Emad A.
Atia, Mohamed A.M.
Mahmoud, Abdel Wahab M.
Saad, Maged

Hirt, Heribert

KAUST Department
Biological and Environmental Sciences and Engineering (BESE) DivisionBiological, Environmental Sciences and Engineering
Center for Desert Agriculture
Desert Agriculture Initiative
Plant Science
KAUST Grant Number
BAS/1/1062-01-01Date
2019-06-18Online Publication Date
2019-06-18Print Publication Date
2019-10Permanent link to this record
http://hdl.handle.net/10754/656297
Metadata
Show full item recordAbstract
The utilization of symbiosis with beneficial microorganisms provides a strategy to alleviate salt stress that reduces existing gaps in crops production. The root endophytic fungus Piriformospora indica has shown to improve plant growth in diverse plant species under biotic stress, while limited reports have discussed the interaction of P. indica with tomato under salt stress. In this study, the impact of P. indica on tomato exposed to 200 mM NaCl for one month in soil-free culture was examined. Growth performance, marker osmolytes, antioxidant enzymes and expression of LeNHX1-4 genes of tomato leaves were measured. Results show that colonization of roots by P. indica improved root branching, fresh and dry weight of salt-stressed plants. Likewise, P. indica colonization increased levels of chlorophyll b, indole acetic acid, catalase and superoxide dismutase in leaves of tomato under salt stress. Meanwhile, P. indica reduced the increase of abscisic acid and proline levels when compared to non-colonized plants. Importantly, Na+/K+ ratios in shoots and roots of colonized plants were lower than in the corresponding non-colonized plants, which may be attributed to the higher K+ concentration observed in leaves and roots of colonized plants under saline water irrigation condition. This change in ion homeostasis was combined with an increase in LeNHX1 transcripts in leaves of colonized plants. Moreover, compared to non-treated plants, colonization with P. indica enhanced fruit yield by 22% and 65% under normal and saline water irrigation, respectively. Our study shows that P. indica enhances the growth and yield of tomato plants under normal and salt stress conditions, opening up a window of opportunity for its application in desert agriculture.Citation
Abdelaziz, M. E., Abdelsattar, M., Abdeldaym, E. A., Atia, M. A. M., Mahmoud, A. W. M., Saad, M. M., & Hirt, H. (2019). Piriformospora indica alters Na+/K+ homeostasis, antioxidant enzymes and LeNHX1 expression of greenhouse tomato grown under salt stress. Scientia Horticulturae, 256, 108532. doi:10.1016/j.scienta.2019.05.059Sponsors
We would like to thank Dr. Michael F. Mette and Abdul Aziz Eida for valuable comments on the manuscripts. This publication is based upon work supported by the King Abdullah University of Science and Technology (KAUST) to HH No. BAS/1/1062-01-01, Faculty of Agriculture - Cairo University and Agricultural Genetic Engineering Research Institute (AGERI), Giza, Egypt.Publisher
Elsevier B.V.Journal
Scientia HorticulturaeAdditional Links
https://linkinghub.elsevier.com/retrieve/pii/S0304423819304157ae974a485f413a2113503eed53cd6c53
10.1016/j.scienta.2019.05.059
Scopus Count
Except where otherwise noted, this item's license is described as This is an open access article under the CC BY license (http://creativecommons.org/licenses/BY/4.0/).