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2019, vol. 68, br. 2, str. 1-11
Uticaj bakterijskih izolata iz zemljišta rizosfere na indukciju klijavosti semena pšenice i ječma
aInstitut za zemljište, Beograd
bUniverzitet u Beogradu, Tehnološko-metalurški fakultet, Katedra za biohemijsko inženjerstvo i biotehnologiju

e-adresaknez.magdalena@gmail.com
Projekat:
Primena biotehnoloških metoda u održivom iskorišćenju nus-proizvoda agroindustrije (MPNTR - 31035)
Proučavanje uticaja kvaliteta zemljišta i voda za navodnjavanje na efikasniju proizvodnju poljoprivrednih kultura i očuvanje životne sredine (MPNTR - 37006)

Ključne reči: Bacillus sp.; klijavost semena; indol-3-sirćetna kiselina (IAA); siderofore; Triticum aestivum; Hordeum jubatum
Sažetak
Zemljišne bakterije iz rizosfere korena biljaka najčešće imaju širok spektar pozitivnog dejstva na biljke I mogu poboljšati njhiov rast. Vrste roda Bacillus jedne su od najistraživanijih bakterija koje mogu doprinositi poboljšanju rasta biljaka. U ovom radu je izolovano sedam Bacillus izolata iz rizosfere lucerke (Medicago sativa). Ispitivana je sposobnost produkcije jedinjenja kao što su vodonik-cijanid, indol-3-sirćetna kiselina I siderofore. Procenjena je I sposobnost indukcije klijavosti na semena pšenice (Triticum aestivum) I ječma (Hordeum jubatum). Izolat BMG2 je proizveo najviše indol-3-sirćetne kiseline (28.89 µg/mL). Dužina korenčića je povećana za 60%, dok je dužina izdanka uvećana 2.23 puta primenom izolata PAZE-6 i BMG1. Pored toga, izolati BMG1, BMG2 i PAZE-6, su poboljšali klijavost obe vrste semena I pokazali sposobnost da proizvedu korisne supstance kao što su sideroforei indol-3sirćetna kiselina. Na dalje bi ovi izolati mogli da se koriste u proizvodnji tečnih aditiva koji bi povećali prinos kultivisanih biljaka, a posebno ječma.
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O članku

jezik rada: engleski
vrsta rada: izvorni članak
DOI: 10.5937/ZemBilj1902001B
objavljen u SCIndeksu: 24.04.2020.
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