論文 - 詳細
RRC ID | 33333 |
---|---|
著者 | Tabata R, Sumida K, Yoshii T, Ohyama K, Shinohara H, Matsubayashi Y. |
タイトル | Perception of root-derived peptides by shoot LRR-RKs mediates systemic N-demand signaling. |
ジャーナル | Science |
Abstract |
Nitrogen (N) is a critical nutrient for plants but is often distributed unevenly in the soil. Plants therefore have evolved a systemic mechanism by which N starvation on one side of the root system leads to a compensatory and increased nitrate uptake on the other side. Here, we study the molecular systems that support perception of N and the long-distance signaling needed to alter root development. Rootlets starved of N secrete small peptides that are translocated to the shoot and received by two leucine-rich repeat receptor kinases (LRR-RKs). Arabidopsis plants deficient in this pathway show growth retardation accompanied with N-deficiency symptoms. Thus, signaling from the root to the shoot helps the plant adapt to fluctuations in local N availability. |
巻・号 | 346(6207) |
ページ | 343-6 |
公開日 | 2014-10-17 |
DOI | 10.1126/science.1257800 |
PII | 346/6207/343 |
PMID | 25324386 |
MeSH | Amino Acid Sequence Arabidopsis / genetics Arabidopsis / growth & development* Arabidopsis / metabolism Arabidopsis Proteins / genetics Arabidopsis Proteins / metabolism* Molecular Sequence Data Nitrogen / metabolism* Peptides / metabolism* Plant Roots / genetics Plant Roots / growth & development* Plant Roots / metabolism Plant Shoots / genetics Plant Shoots / growth & development* Plant Shoots / metabolism Receptors, Peptide / genetics Receptors, Peptide / metabolism* Signal Transduction |
IF | 41.846 |
引用数 | 198 |
WOS 分野 | PLANT SCIENCES |
リソース情報 | |
シロイヌナズナ / 植物培養細胞・遺伝子 | pst11057 pst18898 rpc00001 |