@article{fdi:010066907, title = {{C}an climate-driven change influence silicon assimilation by cereals and hence the distribution of lepidopteran stem borers in {E}ast {A}frica ?}, author = {{C}alatayud, {P}aul-{A}ndr{\'e} and {N}juguna, {E}. and {M}walusepo, {S}. and {G}athara, {M}. and {O}kuku, {G}. and {K}ibe, {A}. and {M}usyoka, {B}. and {W}illiamson, {D}avid and {O}ng'amo, {G}. and {J}uma, {G}. and {J}ohansson, {T}. and {S}ubramanian, {S}. and {G}atebe, {E}. and {L}e {R}ΓΌ, {B}runo}, editor = {}, language = {{ENG}}, abstract = {{I}n {E}ast {A}frica, lepidopteran stemborers such as {C}hilo partellus and {B}usseola fusca are major constraints to production of maize, which is the main staple food crop in the region. {C}ereals depend on silicon ({S}i) based defences to fight off herbivores. {U}sing attitudinal ranges in the {E}ast {A}frican highlands as ecological surrogates for inferring climate change, it was shown that {S}i concentrations in soil and maize decreased with altitude. {T}his was attributed, in part, to low temperatures at high altitudes, which negatively affected {S}i assimilation by maize. {E}xperiments showed that {B}. fusca was more susceptible to {S}i than {C}. partellus. {H}ence the predominance of {B}. fusca in the highlands and of {C}. partellus in the lowlands could be partly explained by attitudinal differences in {S}i concentrations in maize plants. {T}herefore, a rise in temperature due to climate change should enhance the plants' {S}i assimilation and as a result {C} partellus might move into the higher altitudes and increasingly displace {B}. fusca.}, keywords = {{E}astern {A}fromontane ; {A}ltitude ; {C}limate change ; {T}emperature ; {S}ilicon ; {M}aize ; {L}epidopteran stem borers ; {C}hilo partellus ; {B}usseola fusca ; {KENYA} ; {TANZANIE}}, booktitle = {}, journal = {{A}griculture {E}cosystems and {E}nvironment}, volume = {224}, numero = {}, pages = {95--103}, ISSN = {0167-8809}, year = {2016}, DOI = {10.1016/j.agee.2016.03.040}, URL = {https://www.documentation.ird.fr/hor/fdi:010066907}, }