Involvement of the Octadecanoid Pathway in Bluegreen Aphid Resistance in Medicago truncatula

Molecular Plant-Microbe Interactions - Tập 20 Số 1 - Trang 82-93 - 2007
Ling‐Ling Gao1, Jonathan P. Anderson2, J. Klingler, Ramakrishnan M. Nair, Owain Edwards, Karam B. Singh2
1CSIRO Plant Industry, Private Bag 5, Wembley, WA 6913, Australia
2The UWA Institute of Agriculture

Tóm tắt

Aphids are major insect pests of plants that feed directly from the phloem. We used the model legume Medicago truncatula Gaert. (barrel medic) to elucidate host resistance to aphids and identified a single dominant gene which confers resistance to Acyrthosiphon kondoi Shinji (bluegreen aphid). To understand how this gene conditions resistance to bluegreen aphid, transcription profiling of 23 defense-related genes representing various signaling pathways was undertaken using a pair of near-isogenic lines that are susceptible or resistant to bluegreen aphid. All salicylic acid- and ethylene-responsive genes tested were induced by blue-green aphid in resistant and susceptible plants, although there were some differences in the magnitude and kinetics of the induction. In contrast, 10 of 13 genes associated with the octadecanoid pathway were induced exclusively in the resistant plants following bluegreen aphid infestation. These results are in contrast to plant-pathogen interactions where similar sets of defense genes typically are induced in compatible interactions, but to a lesser degree and later than in incompatible interactions. Treatment of susceptible plants with methyl jasmonate reduced bluegreen aphid infestation but not to the same levels as the resistant line. Together, these results strongly suggest that the octa-decanoid pathway is important for this naturally derived aphid resistance trait.

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Tài liệu tham khảo

10.1093/ee/26.3.642

10.1023/A:1003200108763

10.1093/jxb/eri058

10.1007/s00122-001-0808-x

10.1016/S0168-9452(98)00144-7

10.1139/g02-067

10.1016/j.cell.2006.02.008

10.1016/S1369-5266(99)80053-3

10.1111/j.1570-7458.2005.00289.x

10.1016/S0065-2113(08)60530-1

10.1094/MPMI.2003.16.8.699

Dixon, A. 1998. Aphid Ecology: An Optimization Approach, ed. 2. Chapman and Hall, London.

10.1023/A:1019202917690

10.1007/s10681-006-3608-1

10.1094/MPMI.2002.15.10.1025

10.1016/j.copbio.2004.01.008

10.1016/S0031-9422(00)97530-7

10.1046/j.1365-313X.2003.01921.x

10.1007/BF02098393

10.1111/j.1365-3040.2004.01228.x

10.1007/BF00983793

Hill J. R., 2000, Plant Var. J., 13, 40

10.1016/S0952-7915(02)00014-6

Howe G. A., 1996, Theor. Appl. Genet., 104, 1055

10.1105/tpc.8.11.2067

10.1016/S1369-5266(02)00250-9

Kasu T., 1995, J. Kan. Entomol. Soc., 68, 27

10.1016/j.pbi.2004.07.013

10.1146/annurev.arplant.53.100301.135207

10.1126/science.1096931

10.1104/pp.104.051243

10.1105/tpc.004747

10.1007/BF00217532

10.1104/pp.005314

10.1105/tpc.017954

10.1094/MPMI-19-0655

10.1104/pp.105.066837

10.1016/j.cub.2004.02.013

10.1073/pnas.94.10.5473

10.1104/pp.104.050187

10.1105/tpc.10.8.1307

10.1002/arch.10064

10.1104/pp.125.2.1074

10.1146/annurev.arplant.56.032604.144218

10.1038/416599a

10.1071/EA03187

10.1111/j.1364-3703.2004.00240.x

10.1094/MPMI.2003.16.7.645

10.1016/S1360-1385(01)02153-7

10.1104/pp.010862

10.1007/s00425-005-0148-1

10.1007/s004250050609

10.1007/BF02386520

10.1016/S0168-9452(02)00402-8

10.1016/S0965-1748(02)00244-8

10.1073/pnas.95.17.9750

10.1073/pnas.96.3.1146

10.1094/MPMI.2000.13.7.763

10.1007/s001220050974

10.1023/A:1014500330510

10.1038/385718a0

10.1007/s00425-004-1387-2

10.1021/jf0308051

10.1073/pnas.95.25.15107

10.1093/jxb/erj135

10.1186/1471-2229-2-1

10.1073/pnas.141079498

10.1111/j.1365-294X.2004.02297.x

Walling L. L., 2000, J. Plant Growth Regul., 19, 195, 10.1007/s003440000026

10.1111/j.1672-9609.2005.00002.x

10.1104/pp.103.028324

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Molecular Plant-Microbe Interactions

Tập 20 Số 1

82-93

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