S. Henry Williams

<b>Expression of snowdrop lectin (GNA) in transgenic rice plants confers resistance to rice brown planthopper</b>

K. V. Rao, Keerti S. Rathore, Thomas K. Hodges et al. · The Plant Journal · 1998 · 312 citations

Agriculture, Genetics, Plant Sciences +17

Expression of the insecticidal lectin from snowdrop (Galanthus nivalis agglutinin; GNA) in transgenic wheat plants: effects on predation by the grain aphid Sitobion avenae

Eva Stöger, S. Henry Williams, Paul Christou et al. · Molecular Breeding · 1999 · 210 citations

Life Sciences, Plant Biology, Plant Sciences +16

Global Stratotype Section and Point for base of the Ordovician System

Roger A. Cooper, Godfrey S. Nowlan, S. Henry Williams · Episodes · 2001 · 205 citations · Full text

Natural Sciences, Earth Sciences, Geology +10

Time-scale calibration by high-precision UPb zircon dating of interstratified volcanic ashes in the Ordovician and Lower Silurian stratotypes of Britain

Robert D. Tucker, T. E. Krogh, R. J. Ross et al. · Earth and Planetary Science Letters · 1990 · 127 citations

Natural Sciences, Earth Sciences, Geology +13

The palaeogeography of early Ordovician Iapetus terranes: an integration of faunal and palaeomagnetic constraints

David A. T. Harper, Conall Mac Niocaill, S. Henry Williams · Palaeogeography Palaeoclimatology Palaeoecology · 1996 · 94 citations

Natural Sciences, Earth Sciences, Paleontology +11