Abstract

Horticultural greenhouse production in circumpolar regions (>60 degrees N latitude), but also at lower latitudes, is dependent on artificial assimilation lighting to improve plant performance and the profitability of ornamental crops, and to secure production of greenhouse vegetables and berries all year round. In order to reduce energy consumption and energy costs, alternative technologies for lighting have been introduced, including light-emitting diodes (LED). This technology is also well-established within urban farming, especially plant factories. Different light technologies influence biotic and abiotic conditions in the plant environment. This review focuses on the impact of light quality on plant-microbe interactions, especially non-phototrophic organisms. Bacterial and fungal pathogens, biocontrol agents, and the phyllobiome are considered. Relevant molecular mechanisms regulating light-quality-related processes in bacteria are described and knowledge gaps are discussed with reference to ecological theories.

Keywords

abiotic factors; biocontrol agent (BCA); controlled environment; ecological theory; greenhouse; molecular mechanisms; non-phototrophic bacteria; pathogens; phyllosphere; plant metabolism; plant morphology

Published in

Horticulturae
2019, Volume: 5, number: 2, article number: 41

SLU Authors

• Alsanius, Beatrix

  • Department of Biosystems and Technology, Swedish University of Agricultural Sciences
    

• Karlsson, Maria

  • Department of Biosystems and Technology, Swedish University of Agricultural Sciences
    

• Rosberg, Anna Karin

  • Department of Biosystems and Technology, Swedish University of Agricultural Sciences
    

• Naznin, Most Tahera

  • Department of Biosystems and Technology, Swedish University of Agricultural Sciences
    

• Khalil, Samar

  • Department of Biosystems and Technology, Swedish University of Agricultural Sciences
    

• Bergstrand, Karl-Johan

  • Department of Biosystems and Technology, Swedish University of Agricultural Sciences
    

Associated SLU-program

SLU Plant Protection Network


UKÄ Subject classification

Horticulture


Publication identifier

DOI: https://doi.org/10.3390/horticulturae5020041

Permanent link to this page (URI)

https://res.slu.se/id/publ/103044