Abstract
Summary • Reduction in the degree of powdery mildew infection of wheat leaves is observed after treatments with trehalose, a nonreducing disaccharide commonly found in a wide variety of organisms, including fungi. • Wheat ( Triticum aestivum ) cv. Sideral plants grown in phytotrons were inoculated with Blumeria graminis f.sp. tritici . In addition to degree of infection, the effect of trehalose solution was further investigated using light and fluorescence microscopy and enzyme assays. • Infection in wheat leaves was reduced by 50 and 95% with trehalose solution (15 g l −1 ) following a single spraying and three sprayings, respectively; in a detached leaf assay, trehalose was effective at concentrations as low as 0.01 g l −1 . Trehalose did not inhibit conidial germination and differentiation of appressoria ( in vitro or on the leaf epidermis), but enhanced papilla deposition in epidermal cells. Trehalose also enhanced phenylalanine ammonia‐lyase (PAL) and peroxidase (PO) activities; both markers of plant defence responses. However, the level of three cinnamyl alcohol dehydrogenase (CAD) activities (conyferyl, p ‐coumaryl and sinapyl alcohol dehydrogenase) was unchanged. • Trehalose treatment of wheat confers resistance to B. graminis infection by activating plant defence responses (e.g. papilla deposition, PAL and PO activities).
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 8
Claim · model-written summary
A single trehalose spraying reduced infection in wheat leaves by 50%.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- trehalose solutione0
- Interactor
- B. graminis
Blumeria graminise7pathogen - Outcome
- Infection in wheat leavese0
- Direction
- reducede0
- Value
- 50e0
- Qualifier
- following a single sprayinge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Infection in wheat leaves was reduced by 50 and 95% with trehalose solution”
e1“following a single spraying and three sprayings, respectively”
e7“resistance to B. graminis infection”
Claim · model-written summary
Three trehalose sprayings reduced infection in wheat leaves by 95%.
- Taxon
- wheatTriticum aestivume0
- Treatment
- trehalose solutione0
- Interactor
- B. graminisBlumeria graminise7pathogen
- Outcome
- Infection in wheat leavese0
- Direction
- reducede0
- Value
- 95%e0
- Qualifier
- three sprayingse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Infection in wheat leaves was reduced by 50 and 95% with trehalose solution”
e1“following a single spraying and three sprayings, respectively”
e7“resistance to B. graminis infection”
Claim · model-written summary
Trehalose was effective in a detached leaf assay at concentrations as low as 0.01.
- Taxon
- wheatTriticum aestivume0
- Treatment
- trehalosee1
- Outcome
- effectivee1
- Value
- 0.01e1
- Qualifier
- in a detached leaf assaye1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Infection in wheat leaves was reduced by 50 and 95% with trehalose solution”
e1“in a detached leaf assay, trehalose was effective at concentrations as low as 0.01”
Claim · model-written summary
Trehalose did not inhibit conidial germination or appressorium differentiation of the mildew in vitro or on the leaf epidermis.
- Taxon
- wheatTriticum aestivume0
- Organ / stage
- leaf epidermise3
- Treatment
- Trehalosee2
- Interactor
- B. graminisBlumeria graminise7pathogen
- Outcome
- conidial germination and differentiation of appressoriae2
- Direction
- did not inhibite2
- Setting
- in vitroe3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Infection in wheat leaves was reduced by 50 and 95% with trehalose solution”
e2“Trehalose did not inhibit conidial germination and differentiation of appressoria”
e3“in vitro or on the leaf epidermis”
e7“resistance to B. graminis infection”
Claim · model-written summary
Trehalose enhanced papilla deposition in epidermal cells of wheat.
- Taxon
- wheatTriticum aestivume0
- Organ / stage
- epidermal cellse4
- Treatment
- Trehalosee2
- Outcome
- papilla depositione4
- Direction
- enhancede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Infection in wheat leaves was reduced by 50 and 95% with trehalose solution”
e2“Trehalose did not inhibit conidial germination and differentiation of appressoria”
e4“but enhanced papilla deposition in epidermal cells”
Claim · model-written summary
Trehalose enhanced phenylalanine ammonia-lyase (PAL) and peroxidase (PO) activities in wheat.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Trehalosee5
- Gene
- phenylalanine ammonia‐lyase (PAL) and peroxidase (PO)e5
- Outcome
- activitiese5
- Direction
- enhancede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Infection in wheat leaves was reduced by 50 and 95% with trehalose solution”
e5“Trehalose also enhanced phenylalanine ammonia‐lyase (PAL) and peroxidase (PO) activities”
Claim · model-written summary
The level of cinnamyl alcohol dehydrogenase (CAD) activities in wheat was unchanged by trehalose.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Trehalosee5
- Gene
- cinnamyl alcohol dehydrogenase (CAD)e6
- Outcome
- cinnamyl alcohol dehydrogenase (CAD) activitiese6
- Direction
- unchangede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Infection in wheat leaves was reduced by 50 and 95% with trehalose solution”
e5“Trehalose also enhanced”
e6“the level of three cinnamyl alcohol dehydrogenase (CAD) activities”
e7“was unchanged”
Claim · model-written summary
Trehalose treatment of wheat confers resistance to B. graminis infection by activating plant defence responses.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Trehalose treatmente1
- Interactor
- B. graminisBlumeria graminise1pathogen
- Outcome
- resistance to B. graminis infectione1
- Qualifier
- by activating plant defence responsese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Infection in wheat leaves was reduced by 50 and 95% with trehalose solution”
e1“Trehalose treatment of wheat confers resistance to B. graminis infection by activating plant defence responses”
The same questions in other papers
trehalose · molecular: metabolites · Triticum aestivum (wheat)Positive and negative results
4 in the opposite direction
- positive
- positive
- positive
1 paper more in this group
See all 5 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.