Arabidopsis Hydroponics and Shoot Branching Assay
2012
Mark Waters | John Bussell | Ricarda Jost
This protocol establishes growth of Arabidopsis seedlings in a hydroponic medium that is suitable for the controlled addition or withdrawal of any number of nutrients, hormones or metabolites to the plants via the roots. In this case, the described protocol is used to assay sensitivity of shoot branching to exogenously supplied strigolactone, typically the artificial strigolactone GR24. Plants deficient in strigolactone synthesis or response will typically exhibit an increased number of axillary branches compared to wild type. Strigolactone synthesis mutants should respond to exogenous GR24 with reduced numbers and length of axillary shoots, while the phenotype of response mutants will not be rescued. We present here a more detailed protocol extended from that described in Waters et al. (2012).
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