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Infection with phloem limited Abutilon virus causes localised carbohydrate accumulation in leaves of Abutilon striatum: relationships to symptom development and effects on chlorophyll fluorescence quenching during photosynthetic induction

Lohaus, G; Heldt, H; Osmond, C Barry

Description

Infection with phloem limited Abutilon Mosaic Virus caused localized carbohydrate accumulation (high levels of starch, sucrose, and hexoses) in leaves of Abutilon striatum during early symptom development. In mature leaves with attenuated symptoms, tissues showing faint vein-clearing had markedly higher carbohydrate contents than uniformly green areas of the same leaf. A similar pattern of carbohydrate accumulation was found in pale-green mosaics in mature leaves with overt symptoms when...[Show more]

dc.contributor.authorLohaus, G
dc.contributor.authorHeldt, H
dc.contributor.authorOsmond, C Barry
dc.date.accessioned2015-12-13T23:16:01Z
dc.identifier.issn1435-8603
dc.identifier.urihttp://hdl.handle.net/1885/89192
dc.description.abstractInfection with phloem limited Abutilon Mosaic Virus caused localized carbohydrate accumulation (high levels of starch, sucrose, and hexoses) in leaves of Abutilon striatum during early symptom development. In mature leaves with attenuated symptoms, tissues showing faint vein-clearing had markedly higher carbohydrate contents than uniformly green areas of the same leaf. A similar pattern of carbohydrate accumulation was found in pale-green mosaics in mature leaves with overt symptoms when compared to green-islands of the same leaf, but overnight carbohydrate loses were comparable to controls. Because leaves with attenuated symptoms showed no further symptom development whereas the pale-green mosaics became yellow and eventually necrotic in leaves with overt symptoms, it seems unlikely that carbohydrate accumulation following impaired translocation was responsible for symptom expression. High carbohydrate status in leaves with attenuated symptoms had little effect on nonphotochemical quenching during early stages of photosynthetic induction. In leaves with overt symptoms, areas of high carbohydrate status with pale-green mosaics showed markedly slower nonphotochemical quenching. Early symptom areas of young leaves, and advanced symptom areas of mature leaves had low starch contents but were otherwise similar to controls in carbohydrate status. Impaired nonphotochemical quenching in these tissues tended to reflect the state of symptom development, rather than carbohydrate status. Plants with overt symptoms grew about half as fast as plants with attenuated symptoms.
dc.publisherGeorg Thieme Verlag
dc.sourcePlant Biology
dc.subjectKeywords: abutilon mosaic virus; bioaccumulation; carbohydrate synthesis; chlorophyll fluorescence; chromosome translocation; fluorescence quenching; photosynthesis; plant growth; plant leaf; symptom; virus expression; virus infection; Abutilon striatum Fluorescence imaging; Hexose accumulation; Nonphotochemical quenching; Phloem transport; Sugar accumulation
dc.titleInfection with phloem limited Abutilon virus causes localised carbohydrate accumulation in leaves of Abutilon striatum: relationships to symptom development and effects on chlorophyll fluorescence quenching during photosynthetic induction
dc.typeJournal article
local.description.notesImported from ARIES
local.description.refereedYes
local.identifier.citationvolume2
dc.date.issued2000
local.identifier.absfor070603 - Horticultural Crop Protection (Pests, Diseases and Weeds)
local.identifier.ariespublicationMigratedxPub19137
local.type.statusPublished Version
local.contributor.affiliationLohaus, G, University of Gottingen
local.contributor.affiliationHeldt, H, University of Gottingen
local.contributor.affiliationOsmond, C Barry, College of Medicine, Biology and Environment, ANU
local.description.embargo2037-12-31
local.bibliographicCitation.startpage161
local.bibliographicCitation.lastpage167
local.identifier.doi10.1055/s-2000-9461
dc.date.updated2015-12-12T08:46:15Z
local.identifier.scopusID2-s2.0-0343569880
CollectionsANU Research Publications

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