Stephen H. Howell

Aluminum resistance in the Arabidopsis mutant alr-104 is caused by an aluminum-induced increase in rhizosphere pH.

L. Kochian, S. Howell, P. Larsen, 1998, Plant physiology.

Aluminum-resistant Arabidopsis mutants that exhibit altered patterns of aluminum accumulation and organic acid release from roots.

L. Kochian, S. Howell, P. Larsen, 1998, Plant physiology.

Cytokinins and auxins control the expression of a gene in Nicotiana plumbaginifolia cells by feedback regulation.

S. Howell, J. Dominov, J. Schwarz, 1992, The Plant cell.