{"corpus_id":210945484,"paper_sha":"013c103ae211134c965ed2971abc4f620d35edb3","doi":"10.1111/nph.16452","arxiv_id":null,"pmid":31990995,"pmcid":null,"mag_id":3004029174,"dblp_id":null,"acl_id":null,"title":"Lateral roots, in addition to the adventitious roots, form a barrier to radial oxygen loss in Zea nicaraguensis and a chromosome segment introgression line in maize.","year":2020,"publication_date":"2020-01-28","venue":"New Phytologist","journal":{"name":"The New phytologist","pages":null,"volume":null},"journal_issn":null,"journal_title":null,"publication_types":["JournalArticle"],"pubmed_pub_types":["Journal Article","Research Support, Non-U.S. Gov't"],"s2_fields_of_study":["Biology","Medicine","Environmental Science"],"reference_count":61,"citation_count":40,"influential_citation_count":1,"is_open_access":true,"arxiv_categories":null,"arxiv_license":null,"arxiv_journal_ref":null,"mesh_headings":[{"d":"Chromosomes","mj":false,"ui":"D002875"},{"d":"Oxygen","mj":true,"ui":"D010100"},{"d":"Plant Roots","mj":false,"qs":[{"q":"genetics","mj":false,"ui":"Q000235"}],"ui":"D018517"},{"d":"Zea mays","mj":true,"qs":[{"q":"genetics","mj":false,"ui":"Q000235"}],"ui":"D003313"}],"chemicals":[{"n":"Oxygen","ui":"D010100","reg":"S88TT14065"}],"comments_corrections":null,"source_flags":5,"s2_open_access_pdf_url":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1111/nph.16452","s2_open_access_landing_url":"https://www.semanticscholar.org/paper/013c103ae211134c965ed2971abc4f620d35edb3","s2_open_access_license":null,"s2_open_access_status":"CLOSED","pmc_open_access_pdf_url":null,"pmc_open_access_landing_url":null,"pmc_open_access_license":null,"pmc_open_access_status":null,"unpaywall_open_access_pdf_url":null,"unpaywall_open_access_landing_url":null,"unpaywall_open_access_license":null,"unpaywall_open_access_status":null,"abstract":"Plants typically respond to waterlogging by producing new adventitious roots with aerenchyma and many wetland plants form a root barrier to radial O2 loss (ROL), but it was not known if this was also the case for lateral roots. We tested the hypothesis that lateral roots arising from adventitious roots can form a ROL barrier, using root-sleeving electrodes and O2 microsensors to assess ROL of Zea nicaraguensis, the maize (Zea mays ssp. mays) introgression line with a locus for ROL barrier formation (IL #468) from Z. nicaraguensis and a maize inbred line (Mi29). Lateral roots of Z. nicaraguensis and IL #468 both formed a ROL barrier under stagnant, deoxygenated conditions, whereas Mi29 did not. Lateral roots of Z. nicaraguensis had higher tissue O2 status than for IL #468 and Mi29. The ROL barrier was visible as suberin in the root hypodermis/exodermis. Modelling showed that laterals roots can grow to a maximum length of 74 mm with a ROL barrier, but only to 33 mm without a barrier. Presence of a ROL barrier in lateral roots requires reconsideration of the role of these roots as sites of O2 loss, which for some species now appears to be less than hitherto thought.","claims":[{"public_id":"cl_98e7ab7efdaea0c65f722ac098902ee4","status":"active","text":"Lateral roots of Zea nicaraguensis and maize introgression line IL #468 form a radial oxygen loss barrier under stagnant, deoxygenated conditions, whereas Mi29 lateral roots do not.","confidence":0.98,"contributors":[{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["extraction"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/claims/cl_98e7ab7efdaea0c65f722ac098902ee4"},{"public_id":"cl_7ac5ed0eae4ad6f2a0622abef676ac42","status":"active","text":"Lateral roots of Zea nicaraguensis maintain a higher tissue oxygen status than those of IL #468 and Mi29.","confidence":0.92,"contributors":[{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous 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