In the world of synthetic biology and plant physiology, few molecules have garnered as much interest as the peptide CLE25. As someone who follows the latest advancements in peptide research, by S Wang · 2025 · Cited by 10 — CLE25 peptide regulates phloem initiation in Arabidopsis through a CLERK-CLV2 receptor complex. Journal of Integrative Plant Biology 61:1043 I have found the unique properties of this signaling molecule to be quite fascinating. Often described by F Takahashi · 2018 · Cited by 713 — The root-derived CLE25 peptide moves from the roots to the leaves, where it induces stomatal closure by modulating abscisic acid accumulation. as a root-to-shoot transmitter, this 12-amino-acid peptide serves as a critical bridge in how plants interpret their environment.
Understanding the Nature of CLE25 Peptide
When we look at the structural data, CLE25 is a highly specific synthetic peptide with the sequence Arg-Lys-Val-Hyp-Asn-Gly-Hyp-Asp-Pro-Ile-His-Asn, boasting a molecular weight of 1375.5 Da. It belongs to the broader family of CLE peptides (CLAVA by YL Chen · 2020 · Cited by 142 — Endogenous CLE25 is a 12-amino-acid peptide with two hydroxylated proline residues, derived from the C-terminal region of the 69-amino-acid TA3/Embryo Surrounding Region-related), which are well-documented as plant-specific signaling peptides.
One of the most compelling aspects of this molecule is its role as an extracellular signal peptide that regulates cell fate. Unlike some hormones that act locally, CLE25 peptide moves from the roots to the leaves when water is scarce, acting as a long-distance signal. This mobility is what makes it a subject of such intense study for those interested in plant resilience.
The Signaling Cascade: How CLE25 Peptide Moves from the Roots to the Leaves
My interest in this area began when I discovered how CLE25 peptide moves from t CLE peptides and their signaling pathways in plant development he roots to the leaves in response to osmotic stress. Once it reaches the shoots, it interacts with specific receptor complexes. Research indicates that CLERK and CLV2 form a receptor complex underling the perception of the CLE25 peptide, effectively translating the signal into a physiological response.
Furthermore, it has been observed that CLE25 signaling induces ABA hormone and responsive genes, which leads to the modulation of stomatal aperture. By promoting stomatal closure, the plant can effectively minimize water loss. This is essentially how CLE peptides enhance stress tolerance, allowing the organism to navigate periods of dehydration with greater success.
Developmental Roles and Phloem Initiation
Beyond its stress-response capabilities, the peptide CLE25 is integral to morphogenesis. It is widely recognized that CLE25 regulates phloem initiation in Arabidopsis. This developmental regulation is highly precise, involving the interaction of receptors like BAM1, BAM3, and the CIKs (CLAVATA3 Insensitive Receptor Kinases).
When observing the CLE25 peptide in laboratory set The CLE25 signaling induces ABA hormone and responsive genes, resulting in stomatal closure for drought stress tolerance. CAPE1 inhibits the expression of genes tings, it is clear that these peptides function as local or long-distance signaling molecules. Whether it is facilitating phloem initiation in Arabidopsis or triggering the phosphorylation of CIKs, the versatility of this peptide is remarkable.
Insights into Peptide Research
For those looking by T Zhang · 2022 · Cited by 12 — CLE25 peptide moves from roots to leaves in response to osmotic stress and induces NINECIS-EPOXYCAROTENOID DIOXYGENASE3 (NCED3) expression to enhance ABA for a global supplier of CLE25 peptide, it is important to note that this is a highly technical research tool. The synthetic version is typically used to study the biogenesis of signaling molecules and their r The role of peptides cleaved from protein precursors in espective pathways.
Key takeaways from current literature include:
* Structural Integrity: The presence of hydroxylated proline residues is essential for the function of the CLE25 molecule.
* Specificity: While related to other peptides like TaCLE24b, the specific residue makeup of CLE25 allows it to bind uniquely to its receptor complexes.
* Environmental Adaptation: The movement of this peptide from root to leaf confirms that plants possess an internal communication network as sophisticated as any organism.
In summary, the study of CLE25 continues to provide a window into how complex biological systems maintain homeostasis. As a user of these research materials, I find the precision with which CLE25 modulates plant responses to be a testament to the power of small, secreted signaling molecules in nature. Whether it is responding to water deficiency or guiding tissue development, this peptide remains a cornerstone of modern plant science.