A framework integrating plant growth with hormones and nutrients.
2011
Krouk, Gabriel | Ruffel, Sandrine | Gutiérrez, Rodrigo A | Gojon, Alain | Crawford, Nigel M | Coruzzi, Gloria M | Lacombe, Benoît
It is well known that nutrient availability controls plant development. Moreover, plant development is finely tuned by a myriad of hormonal signals. Thus, it is not surprising to see increasing evidence of coordination between nutritional and hormonal signaling. In this opinion article, we discuss how nitrogen signals control the hormonal status of plants and how hormonal signals interplay with nitrogen nutrition. We further expand the discussion to include other nutrient-hormone pairs. We propose that nutrition and growth are linked by a multi-level, feed-forward cycle that regulates plant growth, development and metabolism via dedicated signaling pathways that mediate nutrient and hormonal regulation. We believe this model will provide a useful concept for past and future research in this field.
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