Ethylene signaling mediates host invasion by parasitic plants
| العنوان: | Ethylene signaling mediates host invasion by parasitic plants |
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| المؤلفون: | Atsushi Toyoda, Satoko Yoshida, Tomoaki Nishiyama, Tomoya Kubota, Shuji Shigenobu, Mitsuyasu Hasebe, Juliane K. Ishida, Songkui Cui, Ken Shirasu, Tomoko F. Shibata |
| المصدر: | Science Advances |
| بيانات النشر: | American Association for the Advancement of Science, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | 0106 biological sciences, Ethylene, Parasitic plant, Mutant, 01 natural sciences, 03 medical and health sciences, chemistry.chemical_compound, Haustorium, Genetics, Research Articles, 030304 developmental biology, 0303 health sciences, Multidisciplinary, biology, Cell growth, Host (biology), fungi, Plant Sciences, food and beverages, SciAdv r-articles, Meristem, biology.organism_classification, Forward genetics, Cell biology, chemistry, 010606 plant biology & botany, Research Article |
| الوصف: | Forward genetic analysis in a parasitic plant revealed that ethylene signaling is essential for host invasion. Parasitic plants form a specialized organ, a haustorium, to invade host tissues and acquire water and nutrients. To understand the molecular mechanism of haustorium development, we performed a forward genetics screening to isolate mutants exhibiting haustorial defects in the model parasitic plant Phtheirospermum japonicum. We isolated two mutants that show prolonged and sometimes aberrant meristematic activity in the haustorium apex, resulting in severe defects on host invasion. Whole-genome sequencing revealed that the two mutants respectively have point mutations in homologs of ETHYLENE RESPONSE 1 (ETR1) and ETHYLENE INSENSITIVE 2 (EIN2), signaling components in response to the gaseous phytohormone ethylene. Application of the ethylene signaling inhibitors also caused similar haustorial defects, indicating that ethylene signaling regulates cell proliferation and differentiation of parasite cells. Genetic disruption of host ethylene production also perturbs parasite invasion. We propose that parasitic plants use ethylene as a signal to invade host roots. |
| اللغة: | English |
| تدمد: | 2375-2548 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::20d03291130a7883687091436056807e http://hdl.handle.net/10061/14536 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....20d03291130a7883687091436056807e |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 23752548 |
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