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Strigolactones: new physiological roles for an ancient signal
Citation
Foo, E and Reid, JB, Strigolactones: new physiological roles for an ancient signal, Journal of Plant Growth Regulation, 32, (2) pp. 429-442. ISSN 0721-7595 (2013) [Refereed Article]
Copyright Statement
Copyright Springer Science+Business Media
DOI: doi:10.1007/s00344-012-9304-6
Abstract
Strigolactones are an ancient group of plant
signalling molecules. They play a critical role in the rhizosphere
where they facilitate the formation of symbioses
with fungi, crucial for the acquisition of plant nutrients in
over 80 % of land plant species. Strigolactones have also
been exploited by parasitic weeds as a rhizosphere signal
indicating the presence of a host species, resulting in
devastating losses in some agricultural systems. Recently,
they have also been shown to act endogenously as plant
hormones controlling shoot branching and have been
implicated in a wide range of other physiological processes,
including root growth, root-hair elongation,
adventitious rooting, secondary growth, photomorphogenesis,
seed germination, nodulation, and protonemal development
in mosses. Here, we discuss the evidence for the
involvement of strigolactones as endogenous regulators of
these processes and highlight some examples where the
evidence is inconclusive. One major gap in our understanding
is the identity of the endogenous strigolactone(
s) that are biologically active. A discussion of the
interactions between the different plant hormones and the
possible role of strigolactones as integrators of the root-toshoot
balance, nutrient acquisition, and thus resource
allocation illustrates some important future directions for
this area of research.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | Strigolactones, Branching, Root growth, Secondary growth, Photomorphogenesis, Mycorrhizae, Nodulation, Protonema, Auxin |
| Research Division: | Biological Sciences |
| Research Group: | Plant Biology |
| Research Field: | Plant Physiology |
| Objective Division: | Expanding Knowledge |
| Objective Group: | Expanding Knowledge |
| Objective Field: | Expanding Knowledge in the Environmental Sciences |
| UTAS Author: | Foo, E (Dr Eloise Foo) |
| UTAS Author: | Reid, JB (Professor Jim Reid) |
| ID Code: | 81010 |
| Year Published: | 2013 (online first 2012) |
| Funding Support: | Australian Research Council (DP110102085) |
| Web of Science® Times Cited: | 27 |
| Deposited By: | Plant Science |
| Deposited On: | 2012-11-21 |
| Last Modified: | 2015-07-28 |
| Downloads: | 0 |
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