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Assimilate export inhibition in Sugarcane yellow leaf virus-infected sugarcane is not due to less transcripts for sucrose transporters and sucrose-phosphate synthase or to callose deposition in sieve plates

Title data

ElSayed, Abdelaleim Ismail ; Weig, Alfons ; Sariyeva, Gulmira ; Hummel, Eric ; Yan, Shih-Long ; Bertolini, Alberto ; Komor, Ewald:
Assimilate export inhibition in Sugarcane yellow leaf virus-infected sugarcane is not due to less transcripts for sucrose transporters and sucrose-phosphate synthase or to callose deposition in sieve plates.
In: Physiological and Molecular Plant Pathology. Vol. 81 (2013) . - pp. 64-73.
ISSN 0885-5765
DOI: https://doi.org/10.1016/j.pmpp.2012.11.003

Abstract in another language

Sink leaves, source leaves and internodes of four Hawaiian sugarcane cultivars were tested, whether the inhibition of SCYLV-caused assimilate export was due to lower sucrose synthesis activity, less sucrose transporter content or block of solute flow by callose deposition. The transcript levels of sucrosephosphate synthase (SPSII) and sucrose transporter ShSUT4 were constant throughout sugarcane tissues, whereas the sucrose transporter ShSUT1A was highest in sink leaves and lowest in internodes. No differences in transcript levels were observed between the SCYLV-susceptible and -resistant cultivars and between SCYLV-infected and SCYLV-free sugarcane line. Callose deposition at the sieve plates and the pit fields between sieve tubes and companion cells, visualized by aniline blue-staining, was similar between SCYLV-infected and -free sugarcane. It is concluded that the reduction of assimilate export is neither due to lower sucrose transporter levels nor to a physical block of sieve tubes.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER122914
BAYCEER112929
Keywords: sugar transport; Plant Physiology; virus infection
Institutions of the University: Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Plant Physiology
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science
500 Science > 570 Life sciences, biology
Date Deposited: 21 May 2014 10:16
Last Modified: 07 Aug 2015 10:51
URI: https://eref.uni-bayreuth.de/id/eprint/404