Phosphorus (P) ndeye macronutrient yakakosha kune akasiyana biological process muzvirimwa. Inorganic phosphate (Pi) kushomeka kunogadzirisa nzira yekusaina ye phytohormone jasmonate (fatty acid inosanganisirwa ubiquitous muchirimwa humambo uye yakakosha kune akasiyana maitiro emuviri) muArabidopsis thaliana, asi iyo yepasi molecular maitiro parizvino inoramba isinganzwisisike.
Muchidzidzo chakabudiswa mu The Plant Cell, vatsvakurudzi vanobva kuXishuangbanna Tropical Botanical Garden (XTBG) yeChinese Academy of Sciences vakashandisa nzira dzema molecular uye genetic kuratidza mabasa ehupenyu ePHOSPHATE STARVATION RESPONSE1 (PHR1) mumugwagwa wejasmonate wechiratidzo uye kujekesa kuti sei. inorganic phosphate (Pi) kushomeka kunoshanda pamwe neinogumira jasmonate siginecha yekuyananisa physiological process mumiti.
Vakasimbisa kuti kushomeka kwePi kunomutsa mhinduro dzine chekuita nejasmonate muArabidopsis, kusanganisira kuunganidzwa kweanthocyanin, kuderera kwekutanga midzi kukura, uye kuwedzera kutaura kwejasmonate-inopindura majini. Vakacherechedzawo kuti coronatine insensitive1 (coi1) -mediated nzira yakakosha kuPi kushomeka-inosimudzira jasmonate kusaina.
Vakabva vaona kuti jasmonate zim-domain (JAZ) repressors panyama inopindirana nePHR1, PHL2, uye PHL3. Kuvhiringidza kwePHR1, PHL2, uye PHL3 inoderedza jasmonate-induced anthocyanin kuunganidza uye midzi yekukura inhibition. PHR1 uye yepedyo PHR1-LIKE (PHL) homologs inobata zvakanaka jasmonate synthesis pasi pePi-inoshomeka mamiriro ekushaikwa kwemethyl jasmonate (MeJA), nepo ivo vachiita diki mhedzisiro pakuunganidza jasmonate mukupindura MeJA kuratidzwa.
Mukuwedzera, PHR1 inokurudzira zvakananga kutaura kwemajini akawanda ejasmonate-inopindura, asi mapuroteni eJAZ anokanganisa basa rekunyora rePHR1. Iyo MYC yekunyora zvinhu inobatana nePHR1 uye inosimudzira Pi kushomeka-induced jasmonate kusaina. PHR1 inoshanda zvakabatana neMYC2 mukusaina kwejasmonate, nepo JAZ1 ichivharisa mabasa avo ekunyora uye kubatana kwemuviri.
Mhedzisiro yacho inoratidza kuti PHR1, iyo yakakosha transcription factor yePi kusaina, inogadzirisa zvakanaka jasmonate-mediated anthocyanin kuunganidza uye midzi yekukura inhibition.
"Chidzidzo chedu chinopa manzwisisiro ekuti kusaina kwejasmonate kunokwidziridzwa sei pasi pePi-kushomeka mamiriro," akadaro Hu Yanru weXTBG.
