Question

What is the evidence that SHORTROOT acts upstream of the SCARECROW gene?

Answer 1

required for SHORT ROOT and Scarecroal are stem cell maintenance in the Arabidopsis root menstem enarring its interminate growth. Mufraction of 'str, and SCR genes results on dusosganizator of the quiescent conter and loss of stem cell activity Tesulting as the ressation of ovet goocoth. By choomaten immunopreciptakon polymerase. chauh seachoni shk and sck regulete, a similar but not identical set of stress response genes ścią and she cuese found to be hypeas erstive to abscisic aced. And also both mutants were bypeosensthve to high levels of glucose but responded normally to high salinity and osmoticon Ser Mediates developmental process and stress gesponses and she plays a role io stress responses The scr mutant become hypersensitive to high uk If sugar metabolum or signaling is altered. She was much less sencitive to high all then scr. Slugars response Le supressed in SHR. Other stress desponses also attered Ser and that cause sugar hypeosenaifiuty

SHR act as a master regulero in the SHR SOR-SCL 23 regulatory module. Scho3 is able to modulate the activity frentwn of sur Inithe hypocotyl by geducing both SITR MARNA acumulaton anel SHR pooleen movement which foom negative, feeelback loop in the SHR-SCR 54. 23 regulatowy nefuook.