Preussia sp. BSL-10 producing nitric oxide, gibberellins, and indole acetic acid and improving rice plant growth

Khdija Al-Hosni, Raheem Shahzad, Abdul Latif Khan, Qari Muhammad Imran, Ahmed Al Harrasi, Ahmed Al Rawahi, Sajjad Asaf, Sang Mo Kang, Byung Wook Yun, In Jung Lee

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

Preussia sp. have been least known to improve plant growth and produce phytohormones. The current study investigated the production of nitric oxide (NO), indole-3-acetic acid (IAA), and gibberellins (GA4, GA7, GA15, and GA53) by a novel endophytic-fungal strain Preussia sp. BSL-10 using advanced chromatographic and spectroscopic techniques. Production of these phytohormones were validated by RT–PCR analysis, which indicated the expression of genes encoding tryptophan synthase (TRP), indole-3-acetamide hydrolase (IAAH), tryptophan-2-monooxygenase (IAAM), aldehyde dehydrogenase (ALD), GA4 desaturase (DES), geranylgeranyl-diphosphate synthase (GGS2), ent-desaturase oxidase (P450-4), GA14 synthase (P450-1) and nitrite reductase (NIRK/NIRS), cytochrome P450 (P450nor), nitrate reductase (NR), NOS-like (NOL), and nitric oxide reductase (QNOR/CNOR). In plant growth-promoting effects, the inoculation of Preussia sp. BSL-10 significantly increased the growth of dwarf mutant Waito-C and wild-type rice cultivars. In conclusion, utilizing new endophytic with the ability to produce NO, IAA, and gibberellins can be used to promote growth and yield of marginalized crops.

Original languageEnglish
Pages (from-to)112-118
Number of pages7
JournalJournal of Plant Interactions
Volume13
Issue number1
DOIs
StatePublished - 1 Jan 2018

Keywords

  • Fungal endophyte
  • Gene expression
  • Gibberellins
  • Indole-3-acetic acid
  • Nitric oxide
  • Plant growth

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