| Project/Area Number |
16370102
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Evolutionary biology
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| Research Institution | National Institute for Basic Biology |
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Principal Investigator |
HASEBE Mitsuyasu National Institute for Basic Biology, DIVISION OF EVOLUTIONARY BIOLOGY, PROFESSOR (40237996)
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| Co-Investigator(Kenkyū-buntansha) |
UZAWA Taketoshi OSAKA KYOIKU UNIV., THE DEP. OF EDUCATION, ASSOCIATE PROFESSOR (60283842)
HIWATASHI Yuji National Institute for Basic Biology, DIVISION OF EVOLUTIONARY BIOLOGY, ASSISTANT PROFESSOR (10373193)
FUJITA Tomomichi HOKKAIDO UNIV., FACULTY OF SCIENCE, ASSOCIATE PROFESSOR (50322631)
HOSHI Yoshikazu KYUSHU TOKAI UNIV., SCHOOL OF AGRICULTURE, ASSOCIATE PROFESSOR (70332088)
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| Project Period (FY) |
2004 – 2006
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| Project Status |
Completed (Fiscal Year 2006)
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| Budget Amount *help |
¥15,200,000 (Direct Cost: ¥15,200,000)
Fiscal Year 2006: ¥6,800,000 (Direct Cost: ¥6,800,000)
Fiscal Year 2005: ¥7,400,000 (Direct Cost: ¥7,400,000)
Fiscal Year 2004: ¥1,000,000 (Direct Cost: ¥1,000,000)
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| Keywords | Carnivorous plants / Digestive enzyme / Protease / Evolution / Novel character / Sarracenia / Nepenthes / Drosera / 消化液 / Nepenthes / Sarracenia / シロイヌナズナ / Drosera |
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| Research Abstract |
Activities of various enzymes have been reported in a digestive fluid of carnivorous plants and several genes coding the enzymes were characterized, although their origin and evolution have not been well studied. We analyzed amino acid sequences of secreted proteins in digestive fluids of three independently evolved pitcher plants Nepenthes alata, Sarracenia purpurea, and Cephalotus follicularis as well as a sundew Drosera adelae. Similarity search of the proteins and phylogenetic analyses showed that non-carnivorous plants have homologous proteins to those in the fluid. This suggests that carnivorous enzymes were co-opted from those used in non-carnivorous plants, including pathogenesis and development.
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