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Title: | Characterization and diversity of seed endophytic bacteria of the endemic holoparasitic plant Cistanche armena (Orobanchaceae) from a semi-desert area in Armenia | Authors: | PETROSYAN, Kristine THIJS, Sofie Piwowarczyk, Renata Ruraz, Karolina VANGRONSVELD, Jaco Kaca, Wiestaw |
Issue Date: | 2022 | Publisher: | CAMBRIDGE UNIV PRESS | Source: | SEED SCIENCE RESEARCH, 32 (4), p. 264-273 | Abstract: | We explored the seed-associated bacterial endophytic microbiome in seeds of the endemic holoparasitic species Cistanche armena from a saline and arid habitat in Armenia. A combination of culture-dependent and molecular techniques was employed for identifying the seed endomicrobiome (culturable and unculturable). From surface-sterilized seeds, 10 phyla, comprising 256 endophytic bacterial genera, were identified. Of the culturable strains, we also investigated the plant growth-promoting (PGP) traits. Most of the isolates were spore forming, halotolerant and alkaliphile Bacillus spp., indicating that the endophytic bacteria of C. armena seeds own traits related to the natural habitat of their host plant. Our results confirm that Bacillus species are common and dominated endophytes from plants growing on saline and arid soils. Pantoea spp. and Stenotrophomonas spp. are more favourable PGP endophytes in seeds of C. armena. The PGP traits of these bacteria, such as production of indole, a precursor of auxin, ACC-deaminase and organic acids have the potential to improve the tolerance of their host plants against the abiotic stresses present in their natural habitat. To the best of our knowledge, this is the first report concerning bacterial seed endophytes of the C. armena. | Notes: | Petrosyan, K (corresponding author), Jan Kochanowski Univ Humanities & Sci, Inst Biol, Dept Microbiol, Uniwersytecka 7, PL-25406 Kielce, Poland.; Petrosyan, K (corresponding author), Hasselt Univ, Ctr Environm Sci, Environm Biol Res Grp, Agr Laan Bldg D, B-3590 Diepenbeek, Belgium. kristine.petrosyan@phd.ujk.edu.pl |
Keywords: | abiotic stress;Bacillus;dust seeds;Pantoea;parasitic plants;PGP traits;seed microbiome | Document URI: | http://hdl.handle.net/1942/38848 | ISSN: | 0960-2585 | e-ISSN: | 1475-2735 | DOI: | 10.1017/S0960258522000204 | ISI #: | 000868921600001 | Rights: | The Author(s), 2022. Published by Cambridge University Press | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2023 |
Appears in Collections: | Research publications |
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S0960258522000204jra 264..273.pdf Restricted Access | 481.84 kB | Adobe PDF | View/Open Request a copy | |
xx.pdf | Peer-reviewed author version | 709.09 kB | Adobe PDF | View/Open |
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