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Title: Effect of lipo-chitooligosaccharide on early growth of C4 grass seedlings

Journal Article · · Journal of Experimental Botany
DOI:https://doi.org/10.1093/jxb/erv260· OSTI ID:1344518
 [1];  [2];  [2];  [2];  [2];  [2];  [2];  [2];  [2];  [2];  [2];  [2]
  1. Univ. of Missouri, Columbia, MO (United States); Washington State Univ., Pullman, WA (United States)
  2. Univ. of Missouri, Columbia, MO (United States)

Although lipo-chitooligosaccharides (LCOs) are important signal molecules for plant-symbiont interactions, a number of reports suggest that LCOs can directly impact plant growth and development, separate from any role in plant symbioses. In order to investigate this more closely, maize and Setaria seedlings were treated with LCO and their growth was evaluated. The data indicate that LCO treatment significantly enhanced root growth. RNA-seq transcriptomic analysis of LCO-treated maize roots identified a number of genes whose expression was significantly affected by the treatment. Among these genes, some LCO-up-regulated genes are likely involved in root growth promotion. Interestingly, some stress-related genes were down-regulated after LCO treatment, which might indicate reallocation of resources from defense responses to plant growth. The promoter activity of several LCO-up-regulated genes using a β-glucuronidase reporter system was further analysed. The results showed that the promoters were activated by LCO treatment. Lastly, the data indicate that LCO can directly impact maize root growth and gene expression.

Research Organization:
Univ. of Missouri, Columbia, MO (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
FG02-02ER15309
OSTI ID:
1344518
Journal Information:
Journal of Experimental Botany, Vol. 66, Issue 19; ISSN 0022-0957
Publisher:
Oxford University PressCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 28 works
Citation information provided by
Web of Science

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Cited By (6)

Defining plant growth promoting rhizobacteria molecular and biochemical networks in beneficial plant-microbe interactions journal May 2018
Expression of the Legume-Specific Nod Factor Receptor Proteins Alters Developmental and Immune Responses in Rice journal January 2020
Root colonization by endophytic insect‐pathogenic fungi journal December 2019
Lipo‐chitooligosaccharides promote lateral root formation and modify auxin homeostasis in Brachypodium distachyon journal November 2018
Proteomic Studies on the Effects of Lipo-Chitooligosaccharide and Thuricin 17 under Unstressed and Salt Stressed Conditions in Arabidopsis thaliana journal August 2016
Short-Chain Chitin Oligomers: Promoters of Plant Growth journal February 2017