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Chitin in strawberry cultivation : foliar growth and defense response promotion, but reduced fruit yield and disease resistance by nutrient imbalances

Caroline De Tender (UGent) , Bart Vandecasteele, Bruno Verstraeten (UGent) , Sarah Ommeslag, Tim De Meyer (UGent) , Jill De Visscher (UGent) , Peter Dawyndt (UGent) , Lieven Clement (UGent) , Tina Kyndt (UGent) and Jane Debode
(2021) MOLECULAR PLANT-MICROBE INTERACTIONS. 34(3). p.227-239
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Abstract
Strawberry cultivation is associated with high mineral fertilizer doses and extensive use of chemical plant protection products. Based on previous research, we expected that chitin application to peat substrate would increase the nutrient availability and activate the plant systemic defense response, resulting in higher strawberry yields and fewer disease symptoms. We set up two experiments in which the temporal variability and differences in initial nutrient concentrations of the growing media were taken into account. Chitin treatment resulted in the attraction of plant growth-promoting fungi toward the plant root, such as species from genera Mortierella and Umbelopsis. In addition, by the end of the experiments 87 mg of mineral nitrogen (N) per liter of substrate was mineralized, which can be related to the observed increase in plant shoot biomass. This, however, led to nutrient imbalances in plant shoots and fruit; N concentration in the leaves increased over 30%, exceeding the optimal range, while phosphorous (P) and potassium (K) deficiencies occurred, with concentrations lower than 50% of the optimal range. This may explain the decreased fruit yield and disease resistance of the fruit toward Botrytis cinerea. In contrast, chitin caused a clear defense priming effect in the strawberry leaves, with a strong induction of the jasmonic acid response, resulting in fewer foliar disease symptoms. Chitin causes positive effects on shoot growth and foliar disease resistance, but caution needs to be taken for nutrient imbalances leading to negative influences on root growth, fruit production, and disease susceptibility toward B. cinerea.
Keywords
Agronomy and Crop Science, Physiology, General Medicine, chitin, Fragaria ananassa, growth promotion, metabarcoding, priming, RNA sequencing, TRANSCRIPTION FACTOR GENES, BOTRYTIS-CINEREA, PLANT-GROWTH, CHITOSAN, SOIL, PEAT, RECOGNITION, EXPRESSION, AMENDMENTS, INFECTION

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MLA
De Tender, Caroline, et al. “Chitin in Strawberry Cultivation : Foliar Growth and Defense Response Promotion, but Reduced Fruit Yield and Disease Resistance by Nutrient Imbalances.” MOLECULAR PLANT-MICROBE INTERACTIONS, vol. 34, no. 3, 2021, pp. 227–39, doi:10.1094/mpmi-08-20-0223-r.
APA
De Tender, C., Vandecasteele, B., Verstraeten, B., Ommeslag, S., De Meyer, T., De Visscher, J., … Debode, J. (2021). Chitin in strawberry cultivation : foliar growth and defense response promotion, but reduced fruit yield and disease resistance by nutrient imbalances. MOLECULAR PLANT-MICROBE INTERACTIONS, 34(3), 227–239. https://doi.org/10.1094/mpmi-08-20-0223-r
Chicago author-date
De Tender, Caroline, Bart Vandecasteele, Bruno Verstraeten, Sarah Ommeslag, Tim De Meyer, Jill De Visscher, Peter Dawyndt, Lieven Clement, Tina Kyndt, and Jane Debode. 2021. “Chitin in Strawberry Cultivation : Foliar Growth and Defense Response Promotion, but Reduced Fruit Yield and Disease Resistance by Nutrient Imbalances.” MOLECULAR PLANT-MICROBE INTERACTIONS 34 (3): 227–39. https://doi.org/10.1094/mpmi-08-20-0223-r.
Chicago author-date (all authors)
De Tender, Caroline, Bart Vandecasteele, Bruno Verstraeten, Sarah Ommeslag, Tim De Meyer, Jill De Visscher, Peter Dawyndt, Lieven Clement, Tina Kyndt, and Jane Debode. 2021. “Chitin in Strawberry Cultivation : Foliar Growth and Defense Response Promotion, but Reduced Fruit Yield and Disease Resistance by Nutrient Imbalances.” MOLECULAR PLANT-MICROBE INTERACTIONS 34 (3): 227–239. doi:10.1094/mpmi-08-20-0223-r.
Vancouver
1.
De Tender C, Vandecasteele B, Verstraeten B, Ommeslag S, De Meyer T, De Visscher J, et al. Chitin in strawberry cultivation : foliar growth and defense response promotion, but reduced fruit yield and disease resistance by nutrient imbalances. MOLECULAR PLANT-MICROBE INTERACTIONS. 2021;34(3):227–39.
IEEE
[1]
C. De Tender et al., “Chitin in strawberry cultivation : foliar growth and defense response promotion, but reduced fruit yield and disease resistance by nutrient imbalances,” MOLECULAR PLANT-MICROBE INTERACTIONS, vol. 34, no. 3, pp. 227–239, 2021.
@article{8684482,
  abstract     = {{Strawberry cultivation is associated with high mineral fertilizer doses and extensive use of chemical plant protection products. Based on previous research, we expected that chitin application to peat substrate would increase the nutrient availability and activate the plant systemic defense response, resulting in higher strawberry yields and fewer disease symptoms. We set up two experiments in which the temporal variability and differences in initial nutrient concentrations of the growing media were taken into account. Chitin treatment resulted in the attraction of plant growth-promoting fungi toward the plant root, such as species from genera Mortierella and Umbelopsis. In addition, by the end of the experiments 87 mg of mineral nitrogen (N) per liter of substrate was mineralized, which can be related to the observed increase in plant shoot biomass. This, however, led to nutrient imbalances in plant shoots and fruit; N concentration in the leaves increased over 30%, exceeding the optimal range, while phosphorous (P) and potassium (K) deficiencies occurred, with concentrations lower than 50% of the optimal range. This may explain the decreased fruit yield and disease resistance of the fruit toward Botrytis cinerea. In contrast, chitin caused a clear defense priming effect in the strawberry leaves, with a strong induction of the jasmonic acid response, resulting in fewer foliar disease symptoms. Chitin causes positive effects on shoot growth and foliar disease resistance, but caution needs to be taken for nutrient imbalances leading to negative influences on root growth, fruit production, and disease susceptibility toward B. cinerea.}},
  author       = {{De Tender, Caroline and Vandecasteele, Bart and Verstraeten, Bruno and Ommeslag, Sarah and De Meyer, Tim and De Visscher, Jill and Dawyndt, Peter and Clement, Lieven and Kyndt, Tina and Debode, Jane}},
  issn         = {{0894-0282}},
  journal      = {{MOLECULAR PLANT-MICROBE INTERACTIONS}},
  keywords     = {{Agronomy and Crop Science,Physiology,General Medicine,chitin,Fragaria ananassa,growth promotion,metabarcoding,priming,RNA sequencing,TRANSCRIPTION FACTOR GENES,BOTRYTIS-CINEREA,PLANT-GROWTH,CHITOSAN,SOIL,PEAT,RECOGNITION,EXPRESSION,AMENDMENTS,INFECTION}},
  language     = {{eng}},
  number       = {{3}},
  pages        = {{227--239}},
  title        = {{Chitin in strawberry cultivation : foliar growth and defense response promotion, but reduced fruit yield and disease resistance by nutrient imbalances}},
  url          = {{http://doi.org/10.1094/mpmi-08-20-0223-r}},
  volume       = {{34}},
  year         = {{2021}},
}
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