| Title: | Intraplant communication in maize contributes to defense against insects |
| Author(s): | Varsani S; Basu S; Williams WP; Felton GW; Luthe DS; Louis J; |
| Address: | "a Department of Entomology , University of Nebraska-Lincoln , Lincoln , NE , USA. b USDA-ARS Corn Host Plant Resistance Research Unit, USA , Mississippi State , MS , USA. c Department of Entomology , Pennsylvania State University , University Park , PA , USA. d Department of Plant Science , Pennsylvania State University, USA , University Park , PA , USA. e Department of Biochemistry , University of Nebraska-Lincoln , Lincoln , NE , USA" |
| DOI: | 10.1080/15592324.2016.1212800 |
| ISSN/ISBN: | 1559-2324 (Electronic) 1559-2316 (Print) 1559-2316 (Linking) |
| Abstract: | "The vasculature of plants act as a channel for transport of signal(s) that facilitate long-distance intraplant communication. In maize, Maize insect resistance1-Cysteine Protease (Mir1-CP), which has homology to papain-like proteases, provides defense to different feeding guilds of insect pests. Furthermore, accumulation of Mir1-CP in the vasculature suggests that Mir1-CP can potentially function as a phloem-mobile protein. In a recent study, we provided evidence that Mir1-CP can curtail the growth of phloem-sap sucking insect, corn leaf aphid (CLA; Rhopalosiphum maidis). Our current study further examined whether aboveground feeding by CLA can induce resistance to subsequent herbivory by belowground feeding western corn rootworm (WCR; Diabrotica virgifera virgifera). Aboveground feeding by CLA systemically induced the accumulation of Mir1-CP in the roots. Furthermore, foliage feeding by CLA provided enhanced resistance to subsequent herbivory by belowground feeding of WCR. Taken together, our previous findings and results presented here indicate that long-distance transport of Mir1-CP is critical for providing enhanced resistance to insect attack in maize" |
| Keywords: | "Animals Aphids/pathogenicity Gene Expression Regulation, Plant Insecta/*pathogenicity Plant Leaves/metabolism/parasitology Plant Proteins/genetics/*metabolism Zea mays/*metabolism/*parasitology Corn leaf aphid Mir1-CP Zea mays vascular tissue western corn;" |
| Notes: | "MedlineVarsani, Suresh Basu, Saumik Williams, W Paul Felton, Gary W Luthe, Dawn S Louis, Joe eng Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. 2016/07/29 Plant Signal Behav. 2016 Aug 2; 11(8):e1212800. doi: 10.1080/15592324.2016.1212800" |
