Abstract
Endophytic bacteria occurring in plant in vitro cultures have often been described as contaminants, although these are generally present in all plant tissues, often with plant growth promoting effects. The effects of bacterial endophytes in different in vitro culture phases and in different plant organs of Prunus avium were studied. In a previous study we investigated the endophytic bacterial community of six registered silvaSELECT® genotypes and found differences in the bacterial community that correlated with propagation success. In this study, quantitative polymerase chain reaction protocols were developed to look at the dynamics of the most abundant endophytes, Mycobacterium spp., Rhodopseudomonas spp., and Microbacterium spp. These endophytes were quantified during propagation and rooting, and the bacterial content in three successive years was evaluated depicting the fluctuation over time. Leaves, stems, and shoots were found to contain bacteria although in different abundance. It was shown that after regeneration via adventitious shoots the bacteria were not eliminated, but showed slightly modified concentrations. The plant growth promoting traits of the two isolates Rhodopseudomonas palustris N-I-2 and Microbacterium testaceum D-I-1 were tested in an inoculation experiment, and showed a promotion in rooting of two difficult-to-propagate P. avium genotypes.
Similar content being viewed by others
Abbreviations
- IAA:
-
Indole-3-acetic acid
- IBA:
-
Indole-3-butyric acid
- ITS:
-
16S to 23S internal transcribed spacer
- NAA:
-
1-Naphthaleneacetic acid
- qPCR:
-
Quantitative polymerase chain reaction
- TDZ:
-
Thidiazuron
- WPM:
-
Woody plant medium
References
Abreu-Tarazi MF, Navarrete AA, Andreote FD, Almeida CV, Tsai SM, Almeida M (2010) Endophytic bacteria in long-term in vitro cultivated “axenic” pineapple microplants revealed by PCR-DGGE. World J Microbiol Biotechnol 26:555–560. doi:10.1007/s11274-009-0191-3
Almeida CV, Andreote FD, Yara R, Tanaka FAO, Azevedo JL, Almeida M (2009) Bacteriosomes in axenic plants: endophytes as stable endosymbionts. World J Microbiol Biotechnol 25:1757–1764. doi:10.1007/s11274-009-0073-8
Andreote F, Azevedo J, Araújo W (2009) Assessing the diversity of bacterial communities associated with plants. Braz J Microbiol 40:417–432. doi:10.1590/S1517-83822009000300001
Boine B, Naujoks G, Stauber T (2008) Investigations on influencing plant-associated bacteria in tissue cultures of black locust (Robinia pseudoacacia L.). Plant Cell Tissue Organ Cult 94:219–223. doi:10.1007/s11240-008-9395-8
Cardinale M, Grube M, Erlacher A, Quehenberger J, Berg G (2015) Bacterial networks and co-occurrence relationships in the lettuce root microbiota. Environ Microbiol 17:239–252. doi:10.1111/1462-2920.12686
Cole JR, Wang Q, Fish JA, Chai B, McGarrell DM, Sun Y, Brown CT, Porras-Alfaro A, Kuske CR, Tiedje JM (2014) Ribosomal Database Project: data and tools for high throughput rRNA analysis. Nucleic Acids Res 42:D633–D642. doi:10.1093/nar/gkt1244
Compant S, Reiter B, Sessitsch A, Clément C, Barka EA, Nowak J (2005) Endophytic colonization of Vitis vinifera L. by plant growth-promoting bacterium Burkholderia sp. strain PsJN. Appl Environ Microbiol 71:1685–1693. doi:10.1128/AEM.71.4.1685
Dias ACF, Costa FEC, Andreote FD, Lacava PT, Teixeira MA, Assumpção LC, Araújo WL, Azevedo JL, Melo IS (2008) Isolation of micropropagated strawberry endophytic bacteria and assessment of their potential for plant growth promotion. World J Microbiol Biotechnol 25:189–195. doi:10.1007/s11274-008-9878-0
Donnarumma F, Capuana M, Vettori C, Petrini G, Giannini R, Indorato C, Mastromei G (2011) Isolation and characterisation of bacterial colonies from seeds and in vitro cultures of Fraxinus spp. from Italian sites. Plant Biol 13:169–176. doi:10.1111/j.1438-8677.2010.00334.x
Driver JA, Kuniyuki AH (1984) In vitro propagation of Paradox walnut root stock. Hort Sci 19:507–509
Faleiro AC, Pereira TP, Espindula E, Cristiano F, Brod A, Brod FCA, Arisi ACM (2013) Real time PCR detection targeting nifA gene of plant growth promoting bacteria Azospirillum brasilense strain FP2 in maize roots. Symbiosis 61:125–133. doi:10.1007/s13199-013-0262-y
Ghyselinck J, Pfeiffer S, Heylen K, Sessitsch A, De Vos P (2013) The effect of primer choice and short read sequences on the outcome of 16S rRNA gene based diversity studies. PLoS One 8:e71360. doi:10.1371/journal.pone.0071360
González-Rodríguez RM, Serrato R, Molina J, Aragón CE, Olalde V, Pulido LE, Dibut B, Lorenzo JC (2013) Biochemical and physiological changes produced by Azotobacter chroococcum (INIFAT5 strain) on pineapple in vitro-plantlets during acclimatization. Acta Physiol Plant 35:3483–3487. doi:10.1007/s11738-013-1373-z
Hardoim PR, Van Overbeek LS, Berg G, Pirttilä M, Compant S, Campisano A, Döring M (2015) The hidden world within plants: ecological and evolutionary considerations for defining functioning of microbial endophytes. Microbiol Mol Biol Rev 79:293–320. doi:10.1128/MMBR.00050-14
Janßen A, Meier-Dinkel A, Steiner W, Degen B (2010) Forstgenetische Ressourcen der Vogel-Kirsche/Forest genetic resources of wild cherry. Forst und Holz 65:19–24
Ji SH, Gururani MA, Chun S-C (2014) Isolation and characterization of plant growth promoting endophytic diazotrophic bacteria from Korean rice cultivars. Microbiol Res 169:83–98. doi:10.1016/j.micres.2013.06.003
Kobliha J (2002) Wild cherry (Prunus avium L.) breeding program aimed at the use of this tree in the Czech forestry. J For Sci 48:202–218
Koh R-H, Song H-G (2007) Effects of application of Rhodopseudomonas sp. on seed germination and growth of tomato under axenic conditions. J Microbiol Biotechnol 17:1805–1810
Koskimäki JJ, Hankala E, Suorsa M, Nylund S, Pirttilä AM (2010) Mycobacteria are hidden endophytes in the shoots of rock plant [Pogonatherum paniceum (Lam.) Hack.] (Poaceae). Environ Microbiol Rep 2:619–624. doi:10.1111/j.1758-2229.2010.00197.x
Lacava PT, Li WB, Arau WL, Azevedo JL, Hartung JS (2006) Rapid, specific and quantitative assays for the detection of the endophytic bacterium Methylobacterium mesophilicum in plants. J Microbiol Methods 65:535–541. doi:10.1016/j.mimet.2005.09.015
Laimer da Mâchado M, Heinrich M, Hanzer V, Arthofer W, Strommer S, Paltrinieri S, Martini M, Bertaccini A, Kummert J, Davies D (2001) Improved detection of viruses and phytoplasmas in fruit tree tissue cultures. Acta Hortic 550(463–470):2001. doi:10.17660/ActaHortic.550.70
Laukkanen H, Soini H, Kontunen-Soppela S, Hohtola A, Viljanen M (2000) A mycobacterium isolated from tissue cultures of mature Pinus sylvestris interferes with growth of Scots pine seedlings. Tree Physiol 20:915–920. doi:10.1093/treephys/20.13.915
Leifert C, Cassells A (2001) Microbial hazards in plant tissue and cell cultures. In Vitro Cell Dev Biol Plant 37:133–138. doi:10.1079/IVP2000129
Lloyd G, McCown B (1980) Commercially feasible micropropagation of mountain laurel, Kalmia latifolia, by use of shoot tip culture. Comb Proc Int Plant Prop Soc 30:421–427
Louden BC, Lynne AM, Haarmann D (2011) Use of blue agar CAS assay for siderophore detection. J Microbiol Biol Educ 12:51–53. doi:10.1128/jmbe.v12i1.249
Marino BG, Gaggìa F (2015) Antimicrobial activity of Melia azedarach fruit extracts for control of bacteria in inoculated in vitro shoots of “MRS 2/5” plum hybrid and calla lily and extract influence on the shoot cultures. Eur J Plant Pathol 141:505–521. doi:10.1007/s10658-014-0559-6
Marques JM, da Silva TF, Vollu RE, Blank AF, Ding G-C, Seldin L, Smalla K (2014) Plant age and genotype affect the bacterial community composition in the tuber rhizosphere of field-grown sweet potato plants. FEMS Microbiol Ecol 88:424–435. doi:10.1111/1574-6941.12313
Matt A, Jehle JA (2005) In vitro plant regeneration from leaves and internode sections of sweet cherry cultivars (Prunus avium L.). Plant Cell Rep 24:468–476. doi:10.1007/s00299-005-0964-6
Meier-Dinkel A (1986) In vitro Vermehrung ausgewählter Genotypen der Vogelkirsche (Prunus avium L.). Allg Forst-u J-Ztg 157:139–144
Meier-Dinkel A, Steiner W, Artes O, Hosius B, Leinemann L (2007) Die silvaSELECT-Vogelkirschen- Klonmischung „Escherode I“. AFZ-Der Wald 5:246–247
Middlebrook G, Cohn ML (1958) Bacteriology of tuberculosis: laboratory methods. Am J Public Health Nations Health 48:844–853
Moreno-Vázquez S, Larrañaga N, Uberhuaga EC, Braga EJB, Pérez-Ruíz C (2014) Bacterial contamination of in vitro plant cultures: confounding effects on somaclonal variation and detection of contamination in plant tissues. Plant Cell Tissue Organ Cult. doi:10.1007/s11240-014-0553-x
Murashige T, Skoog F (1962) A revised medium for rapid growth and bio assays with tobacco tissue cultures. Physiol Plant 15:473–497
Nautiyal CS (1999) An efficient microbiological growth medium for screening phosphate solubilizing microorganisms. FEMS Microbiol Lett 170:265–270. doi:10.1016/S0378-1097(98)00555-2
Peralta KD, Araya T, Valenzuela S, Sossa K, Martínez M, Peña-Cortés H, Sanfuentes E (2012) Production of phytohormones, siderophores and population fluctuation of two root-promoting rhizobacteria in Eucalyptus globulus cuttings. World J Microbiol Biotechnol 28:2003–2014. doi:10.1007/s11274-012-1003-8
Pirttilä AM, Laukkanen H, Pospiech H, Myllylä R, Hohtola A (2000) Detection of intracellular bacteria in the buds of Scotch pine (Pinus sylvestris L.) by in situ hybridization. Appl Environ Microbiol 66:3073–3077. doi:10.1128/AEM.66.7.3073-3077.2000.Updated
Pirttilä AM, Joensuu P, Pospiech H, Jalonen J, Hohtola A, Pirttilä A, Joensuu P, Pospiech H, Jalonen J, Hohtola A (2004) Bud endophytes of Scots pine produce adenine derivatives and other compounds that affect morphology and mitigate browning of callus cultures. Physiol Plant 121:305–312. doi:10.1111/j.1399-3054.2004.00330.x
Pirttilä AM, Pospiech H, Laukkanen H, Myllylä R, Hohtola A (2005) Seasonal variations in location and population structure of endophytes in buds of Scots pine. Tree Physiol 25:289–297
Quadt-Hallmann A, Hallmann J, Kloepper JW (1997) Bacterial endophytes in cotton: location and interaction with other plant-associated bacteria. Can J Microbiol 43:254–259
Quambusch M, Pirttilä AM, Tejesvi MV, Winkelmann T, Bartsch M (2014) Endophytic bacteria in plant tissue culture: differences between easy- and difficult-to-propagate Prunus avium genotypes. Tree Physiol 34:524–533. doi:10.1093/treephys/tpu027
Rahman A, Sitepu IR, Tang S-Y, Hashidoko Y (2010) Salkowski’s reagent test as a primary screening index for functionalities of rhizobacteria isolated from wild dipterocarp saplings growing naturally on medium-strongly acidic tropical peat soil. Biosci Biotechnol Biochem 74:2202–2208. doi:10.1271/bbb.100360
R Development Core Team (2008) R: a language and environment for statistical computing. R Foundation for Statistical Computing, Vienna
Rosenblueth M, Martínez-Romero E (2006) Bacterial endophytes and their interactions with hosts. Mol Plant Microbe Interact 19:827–837. doi:10.1094/MPMI-19-0827
Ruppel S, Rühlmann J, Merbach W (2006) Quantification and localization of bacteria in plant tissues using quantitative real-time PCR and online emission fingerprinting. Plant Soil 286:21–35. doi:10.1007/s11104-006-9023-5
Schmid T (2006) Prunus avium. In: Roloff A, Weisgerber H, Lang U, Stimm B (eds) Enzyklopädie der Holzgewächse. Wiley, Weinheim, pp 1–16
Schulz BJE, Boyle CJC, Sieber TN (eds) (2006) What are endophytes? In: Microbial root endophytes. Springer, Berlin, pp 1–13
Shakya M, Gottel N, Castro H, Yang ZK, Gunter L, Labbe J, Muchero W, Bonito G, Vilgalys R, Tuskan G, Podar M, Schadt CW, Labbé J, Muchero W, Bonito G, Vilgalys R, Tuskan G, Podar M, Schadt CW (2013) A multifactor analysis of fungal and bacterial community structure in the root microbiome of mature Populus deltoides trees. PLoS One 8:e76382. doi:10.1371/journal.pone.0076382
Taber RA, Thielen MA, Falkinham JO, Smith RH (1991) Mycobacterium scrofulaceum: a bacterial contaminant in plant tissue culture. Plant Sci 78:231–236. doi:10.1016/0168-9452(91)90203-K
Tang H, Ren Z, Reustle G, Krczal G, Reustle È, Krczal G (2002) Plant regeneration from leaves of sweet and sour cherry cultivars. Sci Hortic 93:235–244. doi:10.1016/S0304-4238(01)00328-4
Thomas P, Swarna GK, Roy PK, Patil P (2008) Identification of culturable and originally non-culturable endophytic bacteria isolated from shoot tip cultures of banana cv. Grand Naine. Plant Cell Tissue Organ Cult 93:55–63. doi:10.1007/s11240-008-9341-9
Trivedi P, Duan Y, Wang N (2010) Huanglongbing, a systemic disease, restructures the bacterial community associated with citrus roots. Appl Environ Microbiol 76:3427–3436. doi:10.1128/AEM.02901-09
Tsavkelova EA, Cherdyntseva TA, Netrusov AI (2005) Auxin production by bacteria associated with orchid roots. Microbiology 74:46–53. doi:10.1007/s11021-005-0027-6
Ulrich K, Stauber T, Ewald D (2008) Paenibacillus—a predominant endophytic bacterium colonising tissue cultures of woody plants. Plant Cell Tissue Organ Cult 93:347–351. doi:10.1007/s11240-008-9367-z
Van den Houwe I, Guns J, Swennen R (1998) Bacterial contamination in Musa shoot tip cultures. Acta Hortic 490:485–492
Yang HY, Schmidt H (1992) Untersuchungen zur Adventivsproßregeneration in vitro bei Kirschen II. Adventivsproßbildung an in vitro-Blättern verschiedener Prunus avium-Idiotypen. Gartenbauwiss 57:7–10
Zakhia F, Jeder H, Willems A, Gillis M, Dreyfus B, De Lajudie P (2006) Diverse bacteria associated with root nodules of spontaneous legumes in Tunisia and first report for nifH-like gene within the genera Microbacterium and Starkeya. Microb Ecol 51:375–393. doi:10.1007/s00248-006-9025-0
Zaspel I, Ulrich A, Boine B, Stauber T (2008) Occurrence of culturable bacteria living in micropropagated black locust cultures (Robinia pseudoacacia L.). Eur J Hortic Sci 73:231–235
Acknowledgments
The authors thank the Institut für Pflanzenkultur, Schnega, Germany, for providing the plant material and for motivating cooperative work, and our technicians Bärbel Ernst, Ewa Schneider and Friederike Schröder for their support. Financial support of the German Federal Ministry of Economics and Technology within the program PRO INNO Grant No. KF2508004AJ0 is gratefully acknowledged. M. Q. is a member of the graduate school WeGa Ph.D. funded by the German Federal Ministry of Education and Research and the Ministry for Science and Culture of Lower Saxony.
Author contributions
Conceived and designed the experiments: MQ, TW, MB. Performed the experiments: MQ, JB, KH. Analyzed the data: MQ, JB, KH, TW, MB. Wrote the paper: MQ, TW, MB.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
The authors declare that they have no conflict of interest.
Electronic supplementary material
Below is the link to the electronic supplementary material.
Supplementary material 3
Determination of the detection limit for the three primer sets to measure a Mycobacterium spp. b Microbacterium spp. and c Rhodopseudomonas spp. in P. avium in vitro material. Dark blue = Standard curve; light blue = Standard curve with 10 ng cherry DNA added to the reaction; green = plant DNA as positive control (for Mycobacterium spp. one with high, one with low bacterial DNA content); grey = control cherry DNA (without the measured bacterium); black = no template control. Red arrow marks the defined detection limit, grey arrow marks the control cherry DNA (PDF 172 kb)
Rights and permissions
About this article
Cite this article
Quambusch, M., Brümmer, J., Haller, K. et al. Dynamics of endophytic bacteria in plant in vitro culture: quantification of three bacterial strains in Prunus avium in different plant organs and in vitro culture phases. Plant Cell Tiss Organ Cult 126, 305–317 (2016). https://doi.org/10.1007/s11240-016-0999-0
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11240-016-0999-0