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Production, composition, and ecological function of sweet basil seed mucilage during hydration

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dc.contributor.authorZhou, Dongfangen
dc.contributor.authorBarney, Jacoben
dc.contributor.authorWelbaum, Gregory E.en
dc.date.accessioned2022-01-05T12:39:45Zen
dc.date.available2022-01-05T12:39:45Zen
dc.date.issued2019-11en
dc.date.updated2022-01-04T00:35:06Zen
dc.description.abstractSweet basil (Ocimum basilicum L.) fruit/pericarp produces mucilage that engulfs fruit and seed within minutes of hydration. Seed mucilage is produced by plant species adapted to arid, sandy soils, though its significance in determining ecological fitness is unclear. Basil fruit/seeds were examined using light and environmental scanning electron microscopy. Basil mucilage forms columnar structures that unfold from the pericarp upon hydration. Dilute hydrochloric acid removed mucilage and decreased water content 4-fold but did not inhibit laboratory seed germination. Fourier transform mid-infrared (FTIR) spectroscopy analysis showed mucilage is composed of hemicellulose that enabled basil seeds to cling to a smooth incline board set to a 70° steeper slope than seeds without mucilage. The fully hydrated seeds approached zero water potential, so the mucilage did not prevent full hydration. Seeds with mucilage had from 12 to 28% higher germination than seeds without mucilage planted in growing media. Seeds with mucilage also had higher survival percentages after 10 days. Basil fruit/seed mucilage provides a reservoir of loosely bound water at high water potential for seed germination and early seedling development, thus improving survivability under adverse moisture conditions.en
dc.description.notesIn reviewen
dc.description.versionSubmitted versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.issn0960-2585en
dc.identifier.orcidWelbaum, Gregory [0000-0001-8694-2856]en
dc.identifier.orcidBarney, Jacob [0000-0003-2949-5003]en
dc.identifier.urihttp://hdl.handle.net/10919/107393en
dc.language.isoenen
dc.publisherCambridge University Pressen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject0607 Plant Biologyen
dc.subject0703 Crop and Pasture Productionen
dc.subjectPlant Biology & Botanyen
dc.titleProduction, composition, and ecological function of sweet basil seed mucilage during hydrationen
dc.title.serialSeed Science Researchen
dc.typeArticleen
dc.type.dcmitypeTexten
dc.type.otherArticleen
pubs.organisational-group/Virginia Techen
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciencesen
pubs.organisational-group/Virginia Tech/University Research Institutesen
pubs.organisational-group/Virginia Tech/University Research Institutes/Fralin Life Sciencesen
pubs.organisational-group/Virginia Tech/All T&R Facultyen
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciences/CALS T&R Facultyen
pubs.organisational-group/Virginia Tech/University Research Institutes/Fralin Life Sciences/Durelle Scotten
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciences/School of Plant and Environmental Sciencesen

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