Publications

1991

The number of each paper in the list corresponds to the number in the complete list of publications.

67. Zdero, C., Bohlmann, F. & Niemeyer, H.M. (1991) Guaianolides and other constituents from Stevia species. Phytochemistry 30: 693-695.
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68. Pritschow, P., Jakupovic, J., Bohlmann, F., Bittner, M. & Niemeyer, H.M. (1991) Highly oxygenated sesquiterpenes from Polyachyrus sphaerocephalus and further constituents from representatives of Chilean mutisieae. Phytochemistry 30: 893-898.
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69. Givovich, A. & Niemeyer, H.M. (1991) Hydroxamic acids affecting barley yellow dwarf virus transmission by the aphid Rhopalosiphum padi. Entomologia Experimentalis et Applicata 59: 79-85.
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70. Thackray, D.J., Wratten, S.D., Edwards, P.J. & Niemeyer, H.M. (1991) Hydroxamic acids - potential resistance factors in wheat against the cereal aphids Sitobion avenae and Rhopalosiphum padi. Proceedings of 1990 Brighton Pest Control Conference-Pests and Diseases-1990. pp. 215-220.
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71. Wratten, S.D., Martin, J.J., Rhind, D. & Niemeyer, H.M. (1991) Mechanisms of resistance in cereals to pests. Proceedings of 1990 Brighton Pest Control Conference-Pests and Diseases-1990. pp. 925-934.
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72. Dupré, S., Grenz, M., Jakupovic, J., Bohlmann, F. & Niemeyer, H.M. (1991) Eromophilane, germacrane and shikimic acid derivatives from Chilean Senecio species. Phytochemistry 30: 1211-1220.
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73. Ahmed, M. & Niemeyer, H.M. (1991) Furoeremophilanes and related compounds from Senecio pachyphyllos. Phytochemistry 30: 2078-2080.
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74. Atkinson, J., Morand, P., Arnason, J.T., Niemeyer, H.M. & Bravo, H.R. (1991) Analogues of the cyclic hydroxamic acid 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA): decomposition to benzoxazolinones and reaction with β-mercaptoethanol. Journal of Organic Chemistry 56: 1788-1800.
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75. Calle, J., Rivera, A., Gutiérrez Luis, J., Aguiar, Z.E., Niemeyer, H.M. & Joseph-Nathan, P. (1991) Insecticidal activity of the petroleum ether extract of Ageratum conyzoides L. Revista Colombiana de Química 19: 91-96.
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76. Copaja, S.V., Barría, B.N. & Niemeyer, H.M. (1991) Hydroxamic acid content of perennial triticeae. Phytochemistry 30: 1531-1534.
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77. Zdero, C., Bohlmann, F. & Niemeyer, H.M. (1991) An unusual dimeric sesquiterpene and other constituents from Chilean Baccharis species. Phytochemistry 30: 1597-1601.
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78. Copaja, S.V., Niemeyer, H.M. & Wratten, S.D. (1991) Hydroxamic acid levels in Chilean and British wheat seedlings. Annals of Applied Biology 118: 223-227.
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79. Ahmed, M., Jakupovic, J., Bohlmann, F. & Niemeyer, H.M. (1991) Highly oxygenated furoeremophilane derivatives from Senecio zoellneri. Phytochemistry 30: 2407-2409.
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80. Jakupovic, J., Grenz, M., Bohlmann, F. & Niemeyer, H.M. (1991) Furoeremophilanes and other constituents from Chilean Senecio species. Phytochemistry 30: 2691-2693.
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81. Quiroz, A. & Niemeyer, H.M. (1991) Reaction of 7-substituted-4-hydroxyl-1,4-benzoxazin-3-ones in strongly acidic media. Heterocycles 32: 1681-1685.
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82. Bravo, H.R. & Niemeyer, H.M. (1991) Decomposition of 7-nitro-2,4-dihydroxy-1,4-benzoxazolin-3-one in aqueous solutions. Heterocycles 32:1687-1691.
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83. Morse, S., Wratten, S.D., Edwards, P.J. & Niemeyer, H.M. (1991) Changes in the hydroxamic acid content of maize leaves with time and after artificial damage: implications for insect attack. Annals of Applied Biology 119: 239-249.
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84. Morse, S., Wratten, S.D. , Edwards, P.J. & Niemeyer, H.M. (1991) The effect of maize leaf damage on the survival and growth rate of Rhopalosiphum padi. Annals of Applied Biology 119: 251-256.
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85. Zdero, C., Bohlmann, F. & Niemeyer, H.M. (1991) Friedolabdanes and other constitutents from Chilean Haplapappus species. Phytochemistry 30: 3669-3677.
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86. Zdero, C., Bohlmann, F. & Niemeyer, H.M. (1991) Seco, nor, normal and rearranged labdanes from Haplopappus parvifolius. Phytochemistry 30: 3683-3691.
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87. Givovich, A. & Niemeyer, H.M. (1991) Effect of hydroxamic acids in wheat on BYDV transmission by Rhopalosiphum padi L. CIMMYT. Barley Yellow Dwarf Newsletter 4: 75-77.
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88. Niemeyer, H.M. (1991) The role of secondary plant compounds in aphid-host interactions. In Aphid-Plant Genotype Interactions, Campbell, R.K. & Eikenbary, R.D., eds., pp. 187-205.
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