IAA Producing Endopytic Fungus Fusariun oxysporum wlw Colonize Maize Roots and Promoted Maize Growth Under Hydroponic Condition

Indole-3-acetic acid (IAA) is known for their role in plant root interactions with microbial partners. Current study was focused on role of IAA as signal for colonization between endopytic fungus Fusariun oxysporum wlw and maize roots. Culture filtrate of te strain contained 31 of IAA μg/mL of IAA. Addition of tryptophan concentration ranging from 500 to 1000 μg/mL in culture medium significantly enhanced production of IAA by Fusariun oxysporum wlw. The strain effectively colonized the roots of maize and subsequently enhanced the growth and proliferation of host plant. In order to demined the role of IAA in root colonization by F. oxysporum we inhibited the biosynthesis of IAA by using IAA biosynthesis inhibitor wice efficiently reduced te colonization of F. oxysporum in maize roots by 46% (foliar application) and 62% (root application) of the seedlings without yucasin (IAA biosynthesis inhibitor) treatment suggesting an IAA crosstalk between the two partners. Exogenous application of IAA restored the ability of endophyte F. oxysporum to colonize maize roots and significantly improved different growth parameters of maize seedlings. It is concluded that a molecular crosstalk of maize roots and endophytic F. oxysporum wlw is necessary for subsequent endophytic association between them.

• Publication year

  2018

• Venue

  European Journal of Experimental Biology

• Publication date

  Unknown publication date

• Fields of study

  Biology, Agricultural and Food Sciences, Environmental Science

• Identifiers
  DOI 10.21767/2248-9215.100065
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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