Root hairs increase rhizosphere extension and carbon input to soil

• Published in: Annals of botany Vol. 121; no. 1; pp. 61 - 69
• Main Authors: Holz, Maire, Zarebanadkouki, Mohsen, Kuzyakov, Yakov, Pausch, Johanna, Carminati, Andrea
• Format: Journal Article
• Language: English
• Published: England Oxford University Press 25.01.2018
• Subjects: barley; biogeochemical cycles; carbon; Editor's Choice; exudation; Hordeum vulgare; mutants; organic matter; Original; radionuclides; rhizosphere; root exudates; root hairs; shoots; soil; Root exudates; root–soil interface; barley (Hordeum vulgare L.); rhizosphere extension; root hairs; carbon allocation; 14C imaging

Although it is commonly accepted that root exudation enhances plant-microbial interactions in the rhizosphere, experimental data on the spatial distribution of exudates are scarce. Our hypothesis was that root hairs exude organic substances to enlarge the rhizosphere farther from the root surface. B...