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Authors Iannone, LJ; Mc Cargo, PD; Giussani, LM; Schardl, CL
Author Full Name Iannone, Leopoldo J.; Mc Cargo, Patricia D.; Giussani, Liliana M.; Schardl, Christopher L.
Title Geographic distribution patterns of vertically transmitted endophytes in two native grasses in Argentina
Source SYMBIOSIS
Language English
Document Type Article
Author Keywords Neotyphodium; Endophytes; Epichloae; Poa; Distribution; Incidence
Keywords Plus FUNGAL ENDOPHYTES; NEOTYPHODIUM ENDOPHYTES; ACREMONIUM ENDOPHYTES; DROUGHT-STRESS; POPULATIONS; INFECTION; TRANSMISSION; REPRODUCTION; ASSOCIATIONS; GROWTH
Abstract The incidence of epichloid endophytes in populations of wild grasses is usually variable, and the knowledge about distribution patterns and how environmental factors affect such an incidence is limited. Here we performed a broad scale survey data to study whether the distribution patterns and the incidence of vertically-transmitted endophytes in populations of two native grasses from South-America, Poa lanuginosa Poir. and Poa bonariensis (Lam.) Kunth., are associated with environmental characteristics. We also characterized the endophytes from different populations to establish if the genotype of the endophytes is also correlated with environmental variables. The incidence of endophytes ranged from 0 to 100 % in both host species. In P. lanuginosa, endophytes were only found in populations on sandy coastal dunes and their incidence was positively associated with winter regime rainfall and soil water availability in the growing season. In P. bonariensis, endophytes were only found in populations in xerophytic forests and their incidence was highly associated with plant community. The distributions of infested populations suggested that the endophytes are not found in those areas with the most favorable or most stressing growth conditions accordingly to climatic or edaphical characteristics. Only the vertically transmitted hybrid endophyte species Neotyphodium tembladerae was detected in both host species. Under the hypothesis of vertical transmission, these results suggested that the endophyte should have been lost in endophyte free populations but is maintained in populations established in environments presenting moderate stress as salinity or short drought periods.
Author Address [Iannone, Leopoldo J.; Mc Cargo, Patricia D.] Univ Buenos Aires, Lab Micol, Dept Biodiversidad & Biol Expt, Fac Ciencias Exactas & Nat, Buenos Aires, DF, Argentina; [Iannone, Leopoldo J.; Mc Cargo, Patricia D.] PROPLAME PRHIDEB CONICET, Buenos Aires, DF, Argentina; [Iannone, Leopoldo J.] Univ Buenos Aires, Dept Ingn Quim, Fac Ingn, Buenos Aires, DF, Argentina; [Giussani, Liliana M.] Inst Bot Darwinion CONICET, Buenos Aires, DF, Argentina; [Schardl, Christopher L.] Univ Kentucky, Dept Plant Pathol, Lexington, KY 40546 USA
Reprint Address Iannone, LJ (corresponding author), Univ Buenos Aires, Dept Ingn Quim, Fac Ingn, Av Intendente Guiraldes 2160 Pab Ind,Cdad Univ,C1, Buenos Aires, DF, Argentina.
E-mail Address leoi@bg.fcen.uba.ar; lgiussani@darwin.edu.ar; schardl@uky.edu
ResearcherID Number Schardl, Christopher L/P-5655-2014
ORCID Number Schardl, Christopher L/0000-0003-2197-0842; Giussani, Liliana Monica/0000-0002-4883-4034
Funding Agency and Grant Number University of Buenos AiresUniversity of Buenos Aires [UBACyT 20020090300118]; CONICETConsejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET) [PIP 1482]; ANPCyT, PAE-PICTANPCyT [58]; USDA-ARSUnited States Department of Agriculture (USDA) [200911131030]
Funding Text This research was supported by University of Buenos Aires (UBACyT 20020090300118), CONICET (PIP 1482), and ANPCyT, PAE-PICT No58. Support to CLS was from USDA-ARS Specific Cooperative Agreement grant 200911131030. This research was started under the supervision of Dr. Daniel Cabral.
Times Cited 4
Total Times Cited Count (WoS, BCI, and CSCD) 4
Publisher SPRINGER
Publisher City DORDRECHT
Publisher Address VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
ISSN 0334-5114
29-Character Source Abbreviation SYMBIOSIS
ISO Source Abbreviation Symbiosis
Publication Date FEB
Year Published 2013
Volume 59
Issue 2
Beginning Page 99
Ending Page 110
Digital Object Identifier (DOI) 10.1007/s13199-012-0214-y
Page Count 12
Web of Science Category Microbiology
Subject Category Microbiology
Document Delivery Number 117RR
Unique Article Identifier WOS:000316971300004
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