Regrowth patterns and rosette attributes contribute to the differential compensatory responses of Arabidopsis thaliana genotypes to apical damage

摘要: A plant's compensatory performance refers to its ability maintain or increase reproductive output following damage. The of a plant compensate depends on numerous factors including the type, severity, frequency and timing damage, environmental conditions genotype. Upon apical cascade hormonal genetic responses often produces dramatic changes in growth, development, architecture physiology. All else being equal, this response is largely dependent genotype, with different regrowth patterns displayed by genotypes given species. In study, we compare architectural growth two Arabidopsis thaliana Specifically, characterise Columbia-4 Landsberg erecta, which typically differ their compensation meristem removal. We report that erecta suffered reductions number stems produced, maximum elongation rate, delay reaching lower average rosette quality throughout growing period, ultimately, less aboveground dry biomass seed production when damaged compared undamaged control plants. had no any these measures maintained larger area clipped relative unclipped. Based apparent influence genotypes' performances, performed removal experiment, confirmed contributes performance. This study provides novel characterisation insights into those having largest effect