Legumes, unlike most land plants, can form symbiotic root nodules with nitrogen‐fixing
bacteria to secure nitrogen for growth. The formation of nitrogen‐fixing nodules on legume …

Uptake, transport and toxicity of engineered nanomaterials (ENMs) into plant cells are
complex processes that are currently still not well understood. Parts of this problem are the …

MicroRNAs (miRNAs) are an extensive class of∼ 22-nucleotide noncoding RNAs thought to
regulate gene expression in metazoans. We find that miRNAs are also present in plants …

World wheat grain yields increased substantially in the 1960s and 1970s because farmers
rapidly adopted the new varieties and cultivation methods of the so-called 'green …

We predict regulatory targets for 14 Arabidopsis microRNAs (miRNAs) by identifying mRNAs
with near complementarity. Complementary sites within predicted targets are conserved in …

In plant tissue culture, callus forms from detached explants in response to a high-auxin-to-
low-cytokinin ratio on callus-inducing medium. Callus is a group of pluripotent cells because …

Local accumulation of the plant growth regulator auxin mediates pattern formation in
Arabidopsis roots and influences outgrowth and development of lateral root-and shoot …

The shoot meristem gives rise to the aerial parts of higher plants by continuously initiating
new organs. The basis of this activity is its ability to maintain a pool of pluripotent stem cells …

Plants are the principal source of iron in most diets, yet iron availability often limits plant
growth. In response to iron deficiency, Arabidopsis roots induce the expression of the …

Micro-RNAs (miRNAs) are regulatory molecules that mediate effects by interacting with
messenger RNA (mRNA) targets. Here we show that Arabidopsis thaliana miRNA 39 (also …