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Annals of Botany 2009 104(1):iii; doi:10.1093/aob/mcp145
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© The Author 2009. Published by Oxford University Press on behalf of the Annals of Botany Company. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

John Bryant takes a closer look at some of this month's Original Articles

J. A. Bryant, Professor

University of Exeter, UK

E-mail j.a.bryant@exeter.ac.uk

The first 10% of the full text of this article appears below.

NR regulation? Just say NO


Figure 1
Nitric oxide (NO) is one of the more recently discovered signalling molecules but has been shown already to participate in a wide range of plant processes. One example is the assimilation of N via nitrate reductase (NR), the subject of a study by Jin et al. (Zhejiang University, Hangzhou, China and La Trobe University, Bundoora, Australia, pp. 9–17). Tomato seedlings were grown hydroponically under low nitrate (0.5 mM) or high nitrate (5.0 mM) conditions. After 2 weeks' growth under these conditions, plants were treated with a NO donor (sodium nitroprusside, SNP, or diethylamine NONOate sodium, NONOate) or with a NO scavenger (cPTIO), or were untreated (controls). In the untreated plants, NR activity was approx. 3-fold higher under high-N than under low-N conditions. NO, . . . [Full Text of this Article]

The seedier side of germplasm conservation

Flower of youth, bloom of old age

Conifers wued in Arctic role


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Ann Bot 2009 104: i. [Extract] [Full Text]