【摘 要】
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The terpenoid,small-compound strigolactones (SLs) are plant hormones that regulate plant shoot branching,which is an important agronomic trait that determines crop yields.The importance of plant hormo
【机 构】
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Graduate School of Agricultural and Life Sciences,The University of Tokyo
【出 处】
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The 2nd International Brassinosteroid Conference(第二届国际油菜素甾醇会
论文部分内容阅读
The terpenoid,small-compound strigolactones (SLs) are plant hormones that regulate plant shoot branching,which is an important agronomic trait that determines crop yields.The importance of plant hormone agonists has been demonstrated in both basic and applied research,and chemicals that mimic strigolactone functions should greatly facilitate not only strigolactone research but also cross talk research between SL and other hormones.Here,we report our discovery of a new SL mimic,4-Br debranone (4BD),which shows similar activity to that of the major strigolactone (SL) analog GR24 in many aspects of a biological assay on plants.4BD strongly inhibited tiller bud outgrowth in the SL-deficient rice mutant dl 0 at the same concentration as GR24,with no adverse effects,even during prolonged cultivation.This result was also observed in the Arabidopsis thaliana SL-deficient mutants max1,max3,and max4.
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