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DOI: | 10.1093/aob/mc1010 |
Web URL(s): | https://academic.oup.com/aob/article/97/4/571/186410/ Last checked: 03/01/2017 Requires: PDF Reader |
Publication Type:
| Refereed |
Author(s): | Gundel, P. E.;
Maseda, P. H.;
Vila-Aiub, M. M.;
Ghersa, M. C.;
Benech-Arnold, R. |
Title: | Effects of Neotyphodium on Lolium multiflorum seed germination in relation to water availability |
Source: | Annals of Botany. Vol. 97, No. 4, April 2006, p. 571-577. |
Publishing Information: | London, Oxford University Press |
# of Pages: | 7 |
Keywords: | TIC Keywords: Neotyphodium; Fungi; Lolium multiflorum; Seed germination; Water availability; Endophytes; Water potential; Water stress
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Abstract/Contents: | "Background and Aims Temperate endophyte-infeted (Neotyphodium) grasses have been shown to exibit an ecological advantage over endophyte-uninfected grasses under abiotic stressful conditions. It is predicted that endophyte-infected plant populations will display higher rates of germination and proportion of germinated seeds under water conditions. Methods The hydromite regression model used to describe the effect of Neotyphodium endophyte on seed germination of Lolium at different water potentials. Additionally, seed mortality after water stress exposure was estimated in endophyte-infected and -uninfected seeds. Key Results Endophyte infection inhibited seed germination at all water potentials. The hydrotime model described satisfactorily the germination, probably due to a lower base water potential compared with endophyte-infected seeds. However, Neotyphodium endophyte conferred a higher rate of survival in those seeds that remained ungerminated when exposed to highly water stress conditions. Conclusions Changes produced by Neotyphodium endophyte in L. multiflorum seeds might affect fitness in particular ecological scenarios. For example, the presence of the endophyte may curtail seed germination when waters is limiting, reducing the risk of seedling death. Conversely, endophyte-free seeds wold display an enhanced germination, ensuring a more rapid seedling establishment if later water conditions do not restrict plant growth." |
Language: | English |
References: | 36 |
Note: | Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Anonymous. 2006. Effects of Neotyphodium on Lolium multiflorum seed germination in relation to water availability. Ann. Bot. 97(4):p. 571-577. |
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| DOI: 10.1093/aob/mc1010 |
| Web URL(s): https://academic.oup.com/aob/article/97/4/571/186410/ Last checked: 03/01/2017 Requires: PDF Reader |
| MSU catalog number: QK 1 .A53 |
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