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In flowering plants, pollen tube guidance is an enigmatic process involving multiple cell-to-cell communications. Several important signal molecules associated with this process have been previously identified, such as LUREs, which are pollen tube attractants derived from Torenia fournieri synergid cells. To identify pollen tube receptors of ovule-secreted attractant signals, we constructed an Arabidopsis...
The MYB-like gene AtGGS1 (ArabidopsisthalianaGA and glucosesignaling) is a DELLA target gene, and also a component of the HXK1 transcriptional complex, implying its roles in gibberellic acid (GA) and glucose signaling. We evaluated the function of AtGGS1 through genetic and biochemical approaches. We conducted phenotypic analyses of the null mutant of AtGGS1 (atggs1), an AtGGS1 overexpression...
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