2020
DOI: 10.1101/2020.09.25.309708
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Role of the SUT1 and SUT2 sugar transporters during stolbur phytoplasma infection in tomato

Abstract: SummaryPhytoplasmas inhabit phloem sieve elements and cause abnormal growth and altered sugar partitioning. But how they interact with phloem functions is not clearly known. The phloem responses were investigated in tomato infected by ‘Candidatus Phytoplasma solani’, at the beginning of the symptomatic stage of infection, both in symptomatic and asymptomatic leaves, the first symptoms appearing in the sink top leaf at the stem apex. Antisense lines impaired in the phloem sucrose transporters SUT1 and SUT2 were… Show more

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“…7; Barratt et al, 2011), to provide precursors (i.e. UDP-glucose) for callose synthesis (Tan et al, 2015; De Marco et al, 2020), and for the production of carbon skeletons for synthesis of defense-related compounds (Bolouri-Moghaddam et al, 2010; Musetti et al, 2013). In Atcals7ko infected plants, increased photoassimilate investment into axial and additional sinks (such as phytoplasmas) would explain enhanced carbohydrate content and the up-regulation of AtSUS5 and AtSUS6 genes, which provide energy at the infection site (Yao et al, 2019; 2020).…”
Section: Discussionmentioning
confidence: 99%
“…7; Barratt et al, 2011), to provide precursors (i.e. UDP-glucose) for callose synthesis (Tan et al, 2015; De Marco et al, 2020), and for the production of carbon skeletons for synthesis of defense-related compounds (Bolouri-Moghaddam et al, 2010; Musetti et al, 2013). In Atcals7ko infected plants, increased photoassimilate investment into axial and additional sinks (such as phytoplasmas) would explain enhanced carbohydrate content and the up-regulation of AtSUS5 and AtSUS6 genes, which provide energy at the infection site (Yao et al, 2019; 2020).…”
Section: Discussionmentioning
confidence: 99%