AI Article Synopsis
- The text discusses the hemiparasitic plant from the Orobanchaceae family, which siphons water and nutrients from other plants via root structures called haustoria.
- It highlights the role of an endogenous peptide hormone, CLE1, in triggering the initial formation of these haustoria by enhancing responses to host-derived factors.
- CLE1 is indicative of a regulatory mechanism that supports continuous resource extraction from host plants, similar to how CLE hormones influence nodulation in legumes.
Article Abstract
is a hemiparasitic plant of the Orobanchaceae, the largest family of parasitic plants. It extracts water and nutrients from other plants through haustoria along its roots. Haustoriogenesis, the formation of haustoria, is initiated by host-derived haustorium-inducing factors (HIFs). The first step in haustoriogenesis is the development of parasitically inactive protohaustoria. Here, we report that an endogenous peptide hormone, CLAVATA3/Embryo Surrounding Region 1 (CLE1), is sufficient to induce protohaustorium formation. CLE1 hyperactivated HIF-responses and caused prolific protohaustoria formation. expression and activation by the subtilisin-type protease SBT1.2.3 occur in fully developed, mature haustoria, suggesting that CLE1 acts as an internal signal produced by mature haustoria to stimulate additional protohaustorium formation for effective extraction of resources from hosts. CLE1 is similar in sequence to CLEs regulating nodulation in legumes and part of a regulatory system for haustoria formation in parasitic plants.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11494319 | PMC |
| http://dx.doi.org/10.1073/pnas.2414582121 | DOI Listing |
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