Can Climate-Driven Change Influence Silicon Assimilation by Cereals and Hence the Distribution of Lepidopteran Stem Borers in East Africa?

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dc.contributor.authorCalatayud, P. A.
dc.contributor.authorNjuguna, E.
dc.contributor.authorMwalusepo, Sizah
dc.contributor.authorGathara, Mary
dc.contributor.authorOkuku, G.
dc.contributor.authorKibe, A.
dc.contributor.authorMusyoka, B.
dc.contributor.authorWilliamson, David
dc.contributor.authorOng’amo, Georges
dc.contributor.authorGerald, Juma
dc.contributor.authorJohansson, Tino
dc.contributor.authorSubramanian, Sevgan
dc.contributor.authorGatebe, E.
dc.contributor.authorLe Ru, Bruno P.
dc.date.accessioned2016-09-21T13:19:37Z
dc.date.available2016-09-21T13:19:37Z
dc.date.issued2016
dc.description.abstractIn East Africa, lepidopteran stemborers such as Chilo partellus and Busseola fusca are major constraints to production of maize, which is the main staple food crop in the region. Cereals depend on silicon (Si)-based defences to fight off herbivores. Using altitudinal ranges in the East African highlands as ecological surrogates for inferring climate change, it was shown that Si concentrations in soil and maize decreased with altitude. This was attributed, in part, to low temperatures at high altitudes, which negatively affected Si assimilation by maize. Experiments showed that B. fusca was more susceptible to Si than C. partellus. Hence the predominance of B. fusca in the highlands and of C. partellus in the lowlands could be partly explained by altitudinal differences in Si concentrations in maize plants. Therefore, a rise in temperature due to climate change should enhance the plants’ Si assimilation and as a result C. partellus might move into the higher altitudes and increasingly displace B. fusca.en_US
dc.identifier.citationCalatayud, P.A., Njuguna, E., Mwalusepo, S., Gathara, M., Okuku, G., Kibe, A., Musyoka, B., Williamson, D., Ong’amo, G., Juma, G. and Johansson, T., 2016. Can climate-driven change influence silicon assimilation by cereals and hence the distribution of lepidopteran stem borers in East Africa?. Agriculture, Ecosystems & Environment, 224, pp.95-103.en_US
dc.identifier.doi10.1016/j.agee.2016.03.040
dc.identifier.urihttp://hdl.handle.net/20.500.11810/3920
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.subjectEastern Afromontaneen_US
dc.subjectAltitudeen_US
dc.subjectClimate changeen_US
dc.subjectTemperatureen_US
dc.subjectSiliconen_US
dc.subjectMaizeen_US
dc.subjectLepidopteran stem borersen_US
dc.subjectChilo partellusen_US
dc.subjectBusseola fuscaen_US
dc.titleCan Climate-Driven Change Influence Silicon Assimilation by Cereals and Hence the Distribution of Lepidopteran Stem Borers in East Africa?en_US
dc.typeJournal Article, Peer Revieweden_US
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