{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T18:58:40Z","timestamp":1789757920322,"version":"4.0.1"},"reference-count":67,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2019,8,28]],"date-time":"2019-08-28T00:00:00Z","timestamp":1566950400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Scientific research start-up funds for openly-recuited doctors","award":["2017RCZX-29"],"award-info":[{"award-number":["2017RCZX-29"]}]},{"DOI":"10.13039\/501100012166","name":"National Key Research and Development Program","doi-asserted-by":"publisher","award":["2018YFD1000800"],"award-info":[{"award-number":["2018YFD1000800"]}],"id":[{"id":"10.13039\/501100012166","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["Nos. 31860568, 31560563 and 31160398"],"award-info":[{"award-number":["Nos. 31860568, 31560563 and 31160398"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Research Fund of Higher Education of Gansu, China","award":["No. 2018C-14"],"award-info":[{"award-number":["No. 2018C-14"]}]},{"name":"Post-Doctoral Foundation of China","award":["Nos. 20100470887 and 2012T50828"],"award-info":[{"award-number":["Nos. 20100470887 and 2012T50828"]}]},{"name":"Natural Science Foundation of Gansu Province, China","award":["Nos. 1606RJZA073 and 1606RJZA077"],"award-info":[{"award-number":["Nos. 1606RJZA073 and 1606RJZA077"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Biomolecules"],"abstract":"<jats:p>Adventitious root (AR) is a kind of later root, which derives from stems and leaf petioles of plants. Many different kinds of small signaling molecules can transmit information between cells of multicellular organisms. It has been found that small molecules can be involved in many growth and development processes of plants, including stomatal movement, flowering, fruit ripening and developing, and AR formation. Therefore, this review focuses on discussing the functions and mechanisms of small signaling molecules in the adventitious rooting process. These compounds, such as nitric oxide (NO), hydrogen gas (H2), hydrogen sulfide (H2S), carbon monoxide (CO), methane (CH4), ethylene (ETH), and hydrogen peroxide (H2O2), can be involved in the induction of AR formation or development. This review also sums the crosstalk between these compounds. Besides, those signaling molecules can regulate the expressions of some genes during AR development, including cell division genes, auxin-related genes, and adventitious rooting-related genes. We conclude that these small-molecule compounds enhance adventitious rooting by regulating antioxidant, water balance, and photosynthetic systems as well as affecting transportation and distribution of auxin, and these compounds further conduct positive effects on horticultural plants under environmental stresses. Hence, the effect of these molecules in plant AR formation and development is definitely a hot issue to explore in the horticultural study now and in the future.<\/jats:p>","DOI":"10.3390\/biom9090420","type":"journal-article","created":{"date-parts":[[2019,8,28]],"date-time":"2019-08-28T11:23:18Z","timestamp":1566991398000},"page":"420","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":30,"title":["Roles of Small-Molecule Compounds in Plant Adventitious Root Development"],"prefix":"10.3390","volume":"9","author":[{"given":"Yuzheng","family":"Deng","sequence":"first","affiliation":[{"name":"College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chunlei","family":"Wang","sequence":"additional","affiliation":[{"name":"College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ni","family":"Wang","sequence":"additional","affiliation":[{"name":"College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lijuan","family":"Wei","sequence":"additional","affiliation":[{"name":"College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Weifang","family":"Li","sequence":"additional","affiliation":[{"name":"College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yandong","family":"Yao","sequence":"additional","affiliation":[{"name":"College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7404-2145","authenticated-orcid":false,"given":"Weibiao","family":"Liao","sequence":"additional","affiliation":[{"name":"College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2019,8,28]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Geiss, G., Gutierrez, L., and Bellini, C. 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