To cause plant disease, pathogenic fungi can secrete effector proteins into plant cells to suppress plant immunity and facilitate fungal infection. Most fungal pathogens infect plants using very long strand-like cells, called hyphae, that secrete effectors from their tips into host tissue. How fungi undergo long-distance cell signalling to regulate effector production during infection is not known. Here we show that long-distance retrograde motility of early endosomes (EEs) is necessary to trigger transcription of effector-encoding genes during plant infection by the pathogenic fungus Ustilago maydis. We demonstrate that motor-dependent retrograde EE motility is necessary for regulation of effector production and secretion during host cell invasion. We further show that retrograde signalling involves the mitogen-activated kinase Crk1 that travels on EEs and participates in control of effector production. Fungal pathogens therefore undergo long-range signalling to orchestrate host invasion.
Original Source [2]
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/long-distance-endosome-trafficking-drives-fungal-effector-production-during-plant
[2] http://www.nature.com/ncomms/2014/141006/ncomms6097/full/ncomms6097.html
[3] http://admin.indiaenvironmentportal.org.in/category/author/ewa-bielska
[4] http://admin.indiaenvironmentportal.org.in/category/author/yujiro-higuchi
[5] http://admin.indiaenvironmentportal.org.in/category/author/martin-schuster-et-al
[6] http://admin.indiaenvironmentportal.org.in/category/journal/nature-communications
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/plant-diseases
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/agriculture
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/agricultural-research
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pest-control
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/fungicide