Within-plant variation in concentrations of amino acids, sugar, and sinigrin in phloem sap of black mustard, Brassica nigra (L.) Koch (Cruciferae)
dc.contributor.author | Merritt, Stewart Z. | en_US |
dc.date.accessioned | 2006-09-11T15:24:39Z | |
dc.date.available | 2006-09-11T15:24:39Z | |
dc.date.issued | 1996-06 | en_US |
dc.identifier.citation | Merritt, Stewart Z.; (1996). "Within-plant variation in concentrations of amino acids, sugar, and sinigrin in phloem sap of black mustard, Brassica nigra (L.) Koch (Cruciferae)." Journal of Chemical Ecology 22(6): 1133-1145. <http://hdl.handle.net/2027.42/44893> | en_US |
dc.identifier.issn | 0098-0331 | en_US |
dc.identifier.issn | 1573-1561 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/44893 | |
dc.description.abstract | Although within-plant variation in the nutrient and allelochemical composition of phloem sap has been invoked to explain patterns of host use by phloem-feeding insects, little is known about within-plant variation in phloem chemistry. Here I describe a new technique in which I use the green peach aphid, Myzus persicae Sulz., to investigate within-plant variation in the concentrations of chemicals in the phloem sap of black mustard, Brassica nigra (L.) Koch (Cruciferae). Relationships between the concentrations of chemicals in aphid diets and honeydew were established using honeydew from aphids fed on artificial diets with known concentrations of amino acids, sucrose, and sinigrin. These relationships were applied to honeydew from aphids fed on different aged leaves of black mustard to estimate the concentrations of the chemicals in phloem sap. Sinigrin concentration was estimated to be high (>10 mM) in phloem sap in young leaves, calling into question the prevailing opinion that phloem sap contains only low concentrations of allelochemicals. High concentrations may function as defenses against sap-feeding herbivores. Within-plant variation in phloem sap composition was high: (1) young leaves had high concentrations of nutrients (216 mM amino acids, 26% sugar) and sinigrin (>10 mM); (2) mature and presenescent leaves had lower concentrations of nutrients (77–83 mM amino acids, 19–20% sugar) and low concentrations of sinigrin (1–2 mM); and (3) senescing leaves had high concentrations of nutrients (199 mM amino acids, 25% sugar) and low concentrations of sinigrin (3 mM). | en_US |
dc.format.extent | 788767 bytes | |
dc.format.extent | 3115 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.language.iso | en_US | |
dc.publisher | Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media | en_US |
dc.subject.other | Brassica Nigra | en_US |
dc.subject.other | Herbivore Distributions | en_US |
dc.subject.other | Glucosinolates | en_US |
dc.subject.other | Agriculture | en_US |
dc.subject.other | Life Sciences | en_US |
dc.subject.other | Physical Chemistry | en_US |
dc.subject.other | Ecology | en_US |
dc.subject.other | Biological Microscopy | en_US |
dc.subject.other | Myzus Persicae | en_US |
dc.subject.other | Phloem Sap | en_US |
dc.subject.other | Sinigrin | en_US |
dc.subject.other | Plant Defense | en_US |
dc.title | Within-plant variation in concentrations of amino acids, sugar, and sinigrin in phloem sap of black mustard, Brassica nigra (L.) Koch (Cruciferae) | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Natural Resources and Environment | en_US |
dc.subject.hlbsecondlevel | Ecology and Evolutionary Biology | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Department of Biology, University of Michigan, 48109-1048, Ann Arbor, Michigan; Department of Biology, University of Puget Sound, 98416, Tacoma, Washington | en_US |
dc.contributor.affiliationumcampus | Ann Arbor | en_US |
dc.identifier.pmid | 24225933 | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/44893/1/10886_2005_Article_BF02027950.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1007/BF02027950 | en_US |
dc.identifier.source | Journal of Chemical Ecology | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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