PubMed:31925978 JSONTXT

{"project":"OryzaGP_2021_v2","denotations":[{"id":"T1","span":{"begin":1449,"end":1454},"obj":"http://identifiers.org/oryzabase.gene/10919"},{"id":"T71346","span":{"begin":1449,"end":1454},"obj":"http://identifiers.org/rapdb.locus/Os08g0538300"}],"text":"Plant species-specific recognition of long and short β-1,3-linked glucans is mediated by different receptor systems.\nPlants survey their environment for the presence of potentially harmful or beneficial microbes. During colonization, cell surface receptors perceive microbe-derived or modified-self ligands and initiate appropriate responses. The recognition of fungal chitin oligomers and the subsequent activation of plant immunity are well described. In contrast, the mechanisms underlying β-glucan recognition and signaling activation remain largely unexplored. Here, we systematically tested immune responses towards different β-glucan structures and show that responses vary between plant species. While leaves of the monocots Hordeum vulgare and Brachypodium distachyon can recognize longer (laminarin) and shorter (laminarihexaose) β-1,3-glucans with responses of varying intensity, duration and timing, leaves of the dicot Nicotiana benthamiana activate immunity in response to long β-1,3-glucans, whereas Arabidopsis thaliana and Capsella rubella perceive short β-1,3-glucans. Hydrolysis of the β-1,6 side-branches of laminarin demonstrated that not the glycosidic decoration but rather the degree of polymerization plays a pivotal role in the recognition of long-chain β-glucans. Moreover, in contrast to the recognition of short β-1,3-glucans in A. thaliana, perception of long β-1,3-glucans in N. benthamiana and rice is independent of CERK1, indicating that β-glucan recognition may be mediated by multiple β-glucan receptor systems."}

{"project":"OryzaGP_2021_FLAIR","denotations":[{"id":"M_0","span":{"begin":932,"end":953},"obj":"hunflair:NA:Species"},{"id":"M_1","span":{"begin":753,"end":776},"obj":"hunflair:NA:Species"},{"id":"M_2","span":{"begin":1426,"end":1430},"obj":"hunflair:NA:Species"},{"id":"M_3","span":{"begin":733,"end":748},"obj":"hunflair:NA:Species"},{"id":"M_4","span":{"begin":1449,"end":1454},"obj":"hunflair:NA:Gene"},{"id":"M_5","span":{"begin":1040,"end":1056},"obj":"hunflair:NA:Species"},{"id":"M_6","span":{"begin":1015,"end":1035},"obj":"hunflair:NA:Species"},{"id":"M_7","span":{"begin":1407,"end":1421},"obj":"hunflair:NA:Species"},{"id":"M_8","span":{"begin":1358,"end":1369},"obj":"hunflair:NA:Species"},{"id":"M_9","span":{"begin":1521,"end":1538},"obj":"hunflair:NA:Gene"}],"text":"Plant species-specific recognition of long and short β-1,3-linked glucans is mediated by different receptor systems.\nPlants survey their environment for the presence of potentially harmful or beneficial microbes. During colonization, cell surface receptors perceive microbe-derived or modified-self ligands and initiate appropriate responses. The recognition of fungal chitin oligomers and the subsequent activation of plant immunity are well described. In contrast, the mechanisms underlying β-glucan recognition and signaling activation remain largely unexplored. Here, we systematically tested immune responses towards different β-glucan structures and show that responses vary between plant species. While leaves of the monocots Hordeum vulgare and Brachypodium distachyon can recognize longer (laminarin) and shorter (laminarihexaose) β-1,3-glucans with responses of varying intensity, duration and timing, leaves of the dicot Nicotiana benthamiana activate immunity in response to long β-1,3-glucans, whereas Arabidopsis thaliana and Capsella rubella perceive short β-1,3-glucans. Hydrolysis of the β-1,6 side-branches of laminarin demonstrated that not the glycosidic decoration but rather the degree of polymerization plays a pivotal role in the recognition of long-chain β-glucans. Moreover, in contrast to the recognition of short β-1,3-glucans in A. thaliana, perception of long β-1,3-glucans in N. benthamiana and rice is independent of CERK1, indicating that β-glucan recognition may be mediated by multiple β-glucan receptor systems."}

{"project":"OryzaGP_2021","denotations":[{"id":"T1","span":{"begin":1449,"end":1454},"obj":"http://identifiers.org/oryzabase.gene/10919"},{"id":"T327","span":{"begin":1449,"end":1454},"obj":"http://identifiers.org/ricegap/LOC_Os08g42580"},{"id":"T54549","span":{"begin":1449,"end":1454},"obj":"http://identifiers.org/rapdb.locus/Os08g0538300"},{"id":"T61551","span":{"begin":1449,"end":1454},"obj":"http://identifiers.org/uniprot/B6SWW8"},{"id":"M_0","span":{"begin":932,"end":953},"obj":"hunflair:NA:Species"},{"id":"M_1","span":{"begin":753,"end":776},"obj":"hunflair:NA:Species"},{"id":"M_2","span":{"begin":1426,"end":1430},"obj":"hunflair:NA:Species"},{"id":"M_3","span":{"begin":733,"end":748},"obj":"hunflair:NA:Species"},{"id":"M_4","span":{"begin":1449,"end":1454},"obj":"hunflair:NA:Gene"},{"id":"M_5","span":{"begin":1040,"end":1056},"obj":"hunflair:NA:Species"},{"id":"M_6","span":{"begin":1015,"end":1035},"obj":"hunflair:NA:Species"},{"id":"M_7","span":{"begin":1407,"end":1421},"obj":"hunflair:NA:Species"},{"id":"M_8","span":{"begin":1358,"end":1369},"obj":"hunflair:NA:Species"},{"id":"M_9","span":{"begin":1521,"end":1538},"obj":"hunflair:NA:Gene"}],"text":"Plant species-specific recognition of long and short β-1,3-linked glucans is mediated by different receptor systems.\nPlants survey their environment for the presence of potentially harmful or beneficial microbes. During colonization, cell surface receptors perceive microbe-derived or modified-self ligands and initiate appropriate responses. The recognition of fungal chitin oligomers and the subsequent activation of plant immunity are well described. In contrast, the mechanisms underlying β-glucan recognition and signaling activation remain largely unexplored. Here, we systematically tested immune responses towards different β-glucan structures and show that responses vary between plant species. While leaves of the monocots Hordeum vulgare and Brachypodium distachyon can recognize longer (laminarin) and shorter (laminarihexaose) β-1,3-glucans with responses of varying intensity, duration and timing, leaves of the dicot Nicotiana benthamiana activate immunity in response to long β-1,3-glucans, whereas Arabidopsis thaliana and Capsella rubella perceive short β-1,3-glucans. Hydrolysis of the β-1,6 side-branches of laminarin demonstrated that not the glycosidic decoration but rather the degree of polymerization plays a pivotal role in the recognition of long-chain β-glucans. Moreover, in contrast to the recognition of short β-1,3-glucans in A. thaliana, perception of long β-1,3-glucans in N. benthamiana and rice is independent of CERK1, indicating that β-glucan recognition may be mediated by multiple β-glucan receptor systems."}