Wildfire and carbon neutralize Novel Weapons and harms reproductive potential of an allelopathic invasive plant

Wildfire and carbon neutralize Novel Weapons and harms reproductive potential of an allelopathic invasive plant | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Wildfire and carbon neutralize Novel Weapons and harms reproductive potential of an allelopathic invasive plant Benjamin Schlau This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7837472/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Invasive species are a leading cause of global biodiversity loss, and in Southern California scrublands, black mustard ( Rhamphospermum nigrum ) is a prominent, harmful invasive plant. Rhamphospermum nigrum employs allelopathic Novel Weapons to directly harm heterospecifics via inhibition of germination and indirectly by killing mycorrhizae, generating near monocultures across hillsides. However, active carbon, often deposited by wildfires, is known to bond to and neutralize plant exudates. This led to a hypothesis that active carbon soil amendments neutralize R. nigrum Novel Weapons , and thus, the invasive’s superior competitiveness. In the greenhouse and field, carbon treatments reduced or completely inhibited R. nigrum reproductive potential (Inflorescence) and mitigated some of the invasive’s negative effects on the growth of deerweed ( Acmispon glaber ), a common Southern California native “fire-follower”. Carbon soil amendments, whether administered by hand or by fire, may thus reduce the fitness, abundance, and negative effects of R. nigrum on the native plant community. Full Text Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-7837472","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":531290778,"identity":"62e5c675-da6b-4870-b9b5-6dc4ef4ad655","order_by":0,"name":"Benjamin 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