Zvinonzi chikamu che10 kusvika 15% chekurasikirwa kwekurima pasi rose kunokonzerwa nezvirwere. Uye sezvo 70-80% yechirwere ichi chirimwa inokonzerwa nefilamentous fungi, kuchengetedza zvirimwa kubva kune filamentous fungi inyaya yakakosha mukudyisa huwandu hwenyika. Kuti pathogenic fungi iparadze zvidyarwa, dzinofanirwa kupaza nepakati epidermal masero echirimwa uye kupinda mukati. Mune mamwe mazwi, chirimwa epidermal masero anoita seyekutanga chipingamupinyi kumisa kurwiswa kwepathogenic fungi munzvimbo. Saka rudzii rwemabasa ekudzivirira ane epidermal masero?
Sezvineiwo, zvaizivikanwa kuti epidermis yemiti ine madiki chloroplast asina kunyanya kubatanidzwa muphotosynthesis. Zvisinei, hazvina kujeka kuti ine basa rei. Sei kune ma chloroplast madiki muepidermis yezvirimwa izvo zvisingabatsire zvakanyanya kuphotosynthesis?
Mubatsiri Purofesa Hiroki Irieda weFaculty of Agriculture, Shinshu University uye Purofesa Yoshitaka Takano, Graduate School of Agriculture, Kyoto University, vakawana kuti ma<em>chloroplast maduku ari mu<em>epidermis yemiti anodzora kupinda kwefungal pathogens. Vaviri vacho vakaona kuti ma chloroplasts madiki anofamba mukati mesero zvinokatyamadza kusvika padanho repamusoro achipindura kurwiswa kwefungal uye anobatanidzwa mukupindura kwakadaro kwekudzivirira.
Muchidzidzo ichi, vaviri ava vakatanga kuongorora kuti rudzii rwepathogenic fungi inopindura epidermal chloroplasts. Nekuda kweizvozvo, vakawana kuti akawanda pathogenic filamentous fungi inokonzera kutama kwepasi kwe epidermal chloroplasts. Sezvineiwo, zvakaonekwawo kuti aya pathogenic filamentous fungi ndiwo anonzi 'nonadapted' uye akavharirwa kubva pakupinda masero epidermal. Kune rumwe rutivi, yakagadziridzwa pathogenic fungus inowanzopinda mu epidermis mumiti umo epidermal chloroplasts yakamira kutamira kune pamusoro pedenga.
Zvadaro, vakabudirira kuwana mapuroteni ezvirimwa akabatanidzwa mukutama kwepamusoro epidermal chloroplasts. Kana chirimwa chinowandisa puroteni iyi chakagadzirwa nejene kutamisa sumo, epidermal chloroplasts haina kufamba kuenda kune iyo yepamusoro layer kurwisa pathogenic filamentous fungi. Mune ino transgenic chirimwa, kusadzivirirwa kune epidermal kupinda kwepathogenic filamentous fungi kunoderedzwa. Yakawanikwa zvakare kuti pathogenic fungi inowanzopinda mu epidermis mumiti umo epidermal chloroplasts yakamira kutamira kune imwe nzvimbo. Mhedzisiro iyi inoratidza kuti kutama kwe epidermal chloroplasts kune iyo yepamusoro layer inobatanidzwa mumhinduro yekudzivirira inovhara kupinda kwepathogenic fungi.
Verenga chinyorwa chakazara pawww.phys.org.