In a study of the plant communities of two Australian rainforests, it was found that pioner
species had high levels of nitrate reductase (EC 1.6. 6.1) and were predominantly leaf …

Trees differ in their ability to assimilate nitrate in their leaves (Smirnoff et al., 1984). In
Australian rain forest trees a relatively high capacity for leaf nitrate assimilation is …

(N) assimilation in perennial woody spe-cies. The present study shows that leaf nitrate
reduction is of common occurrence in woody plants of English woodland com-munities …

For the majority of woody plants, the min-eralization of organic nitrogen in soil provides their
source of nitrogen for growth. The relative activities of ammonifiers"''0 nitrifiers, as influenced …

High levels of foliar nitrate reductase (NR) activity have been demonstrated in fast-growing
pioneers (eg Sambucus nigra: 1601.9 pkat g-1 fwt.), while climax species exhibit low foliar …

Losses of nitrate in drainage water from disturbed forest ecosystems vary over a wide range.
High losses of nitrate to streamwater or groundwater have been observed in a few sites …

The major advances in nitrogen assimilation in the past 20 years have been made with leaf
systems. For example, the identification of light as a factor in nitrate reduction (11, 18, 113 …

The capacity for nitrate reduction was shown to be present in the roots and shoots of all fern
species examined. In many species the root was the major site of nitrate reduction …

Introduction: Nitrogen (N) compounds are found in all plant tissues, where they play key
roles in growth, reproduction, and photosynthesis. Although N is the most commonly …