Colonization of endophyte Pantoea agglomerans YS19 on host rice, with formation of multicellular symplasmata

Xiao Zhang, Erli Li, Xiaolu Xiong, Delong Shen, Yongjun Feng*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

Pantoea agglomerans YS19 is a diazotrophic endophyte isolated from rice (Oryza sativa cv. Yuefu) grown in a temperate-climatic region in west Beijing (China). The colonization of YS19 on host rice was studied in this paper. It was revealed that YS19 colonizes in all the tissues of rice seedlings, including roots (dominantly at elongation regions, lateral root junctions, root hairs and root caps), stems and leaves. More YS19 colonizes in stem and leaves (1.40 × 105 CFU mg-1 fresh weight) than that in roots (3.60 × 104 CFU mg-1). Symplasmata, a kind of adaptive structure of the strain for its endophytic living, were repeatedly observed to form inside root or stem cortex parenchyma tissues, as well as on leaf surfaces and also rhizoplanes. A novel matrix protein (SPM43.1) with its expression paralleling to the formation of symplasmata was captured, whose meaning in structural construction of symplasmata was also discussed.

Original languageEnglish
Pages (from-to)1667-1673
Number of pages7
JournalWorld Journal of Microbiology and Biotechnology
Volume26
Issue number9
DOIs
Publication statusPublished - 2010

Keywords

  • Colonization
  • Endophyte
  • Pantoea agglomerans
  • Rice

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