The response of plants to flooding is complex and involves the induction of
specific gene sets. A multidisciplinary approach by several research teams
has led to a reasonably good understanding of the low oxygen response, and
many of the genes and proteins that are involved are known. But the factor
s that are critical in determining tolerance or intolerance remain unknown.
Microarray technology offers renewed hope to unravel the complex changes i
n gene expression occurring in plants upon low oxygen treatment and what me
chanisms are involved in the response.