Essay --

The main questions addressed in this look into were base on the Medicago Truncatula- Sinorhizobium symbiosis that form in classic (non-reproducing bacteria) tubercles. a) to see whether M. truncatula displays confederate choice in picking the most efficient rhizobia between north fixing and non fixing bacteria in both pre- transmission and patch- infection scenarios. b) the authors also wanted to see if legumes can alter their allocation of degree Celsius photosyntates to separately nodule depending on how efficient the rhizobia is in each nodule. Authors of this member did this research because this symbiotic relationship is widely studied, but all the research done so far have been on determinate (bacteria is competent to reproduce) nodules1 rather than indeterminate nodules. In previous research it was found that determinate nodules show both assistant choice and allocation diametricaliation between efficient and non- efficient rhizobia. Answer2 Authors hypothesized that in Medicago Truncatula- Sinorhizobium that form indeterminate nodules result show partner choice in both pre infection and post infection scenarios and select for the most efficient rhizobia partner. They also hypothesized that the legume impart show differential allocation of carbon photosyntates in each nodule depending on the number of northward fixing and non fixing rhizobia in each nodule. Answer3Figure What method(s) gave this data?What do these data show? Figure1aThe authors performed a split- spreadeagle experiment to obtain data based on three different parameters and then use MANOVA analyses to equation the three parameters utilize in the experiment. They used Post hoc on all the measurements to use it to graph the differences. ANOVA to compare the mean of the two strains used... ...thors hypothesis. However, they were not able to show difference in the resource allocation to each nodule depending on the efficiency of bacteria in each nodule. Therefore they con cluded that sanctioning is not sit is not present in all legume unlike the partner choice.Answer5 The authors think that the discrepancy in the results of the previous researches and theirs regarding allocations by the legume to nitrogen fixing and non- fixing bacteria is that the authors used M. truncatula- sinorhizobium indeterminate nodules whereas other researchers used either soybean or yellow bush lupin determinate nodules. Since this is the first time such model is presented I think that thither should be more researches focusing only the sanctions by legumes to the bacteria to correct understand the symbiosis between M. truncatula - Sinorhizobium and sanctions in general.