Next Article in Journal
Genomic Resource Development for Hydrangea (Hydrangea macrophylla (Thunb.) Ser.)—A Transcriptome Assembly and a High-Density Genetic Linkage Map
Next Article in Special Issue
Biological Control of the Raspberry Eriophyoid Mite Phyllocoptes gracilis Using Entomopathogenic Fungi
Previous Article in Journal
Nutraceutical Content and Daily Value Contribution of Sweet Potato Accessions for the European Market
Article

Effect of Bacillus spp. and Brevibacillus sp. on the Photosynthesis and Redox Status of Solanum lycopersicum

1
Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal
2
LAQV-REQUIMTE, University of Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal
3
Centre for Functional Ecology, Department of Life Sciences, Calçada Martim de Freitas, University of Coimbra, 3000-456 Coimbra, Portugal
4
Centro de Investigação de Desenvolvimento de Sistemas Agroalimentares e Sustentabilidade (CISAS), 4900-347 Viana do Castelo, Portugal
5
Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro (UTAD), 5001-801 Vila Real, Portugal
*
Author to whom correspondence should be addressed.
Academic Editor: Giovanni Bubici
Horticulturae 2021, 7(2), 24; https://doi.org/10.3390/horticulturae7020024
Received: 18 December 2020 / Revised: 29 January 2021 / Accepted: 29 January 2021 / Published: 3 February 2021
(This article belongs to the Special Issue Microbe-Assisted Production of Horticultural Crops)
Plant-growth-promoting bacteria (PGPB) are gaining attention as a sustainable alternative to current agrochemicals. This study evaluated the impact of three Bacillus spp. (5PB1, 1PB1, FV46) and one Brevibacillus sp. (C9F) on the important crop tomato (Solanum lycopersicum) using the model cv. ‘MicroTom’. The effects of these isolates were assessed on (a) seedlings’ growth and vigor, and (b) adult potted plants. In potted plants, several photosynthetic parameters (chlorophylls (a and b), carotenoids and anthocyanins contents, transpiration rate, stomatal conductance, net CO2 photosynthetic rate, and intercellular CO2 concentration, and on chlorophyll fluorescence yields of light- and dark-adapted leaves)), as well as soluble sugars and starch contents, were quantified. Additionally, the effects on redox status were evaluated. While the growth of seedlings was, overall, not influenced by the strains, some effects were observed on adult plants. The Bacillus safensis FV46 stimulated the content of pigments, compared to C9F. Bacillus zhangzhouensis 5PB1 increased starch levels and was positively correlated with some parameters of the photophosphorylation and the gas exchange phases. Interestingly, Bacillus megaterium 1PB1 decreased superoxide (O2) content, and B. safensis FV46 promoted non-enzymatic antioxidant defenses, increasing total phenol content levels. These results, conducted on a model cultivar, support the theory that these isolates differently act on tomato plant physiology, and that their activity depends on the age of the plant, and may differently influence photosynthesis. It would now be interesting to analyze the influence of these bacteria using commercial cultivars. View Full-Text
Keywords: biofertilizers; plant-growth-promoting bacteria; sustainable agriculture; Solanum lycopersicum; chlorophyll a fluorescence; gas exchange biofertilizers; plant-growth-promoting bacteria; sustainable agriculture; Solanum lycopersicum; chlorophyll a fluorescence; gas exchange
Show Figures

Figure 1

MDPI and ACS Style

Costa-Santos, M.; Mariz-Ponte, N.; Dias, M.C.; Moura, L.; Marques, G.; Santos, C. Effect of Bacillus spp. and Brevibacillus sp. on the Photosynthesis and Redox Status of Solanum lycopersicum. Horticulturae 2021, 7, 24. https://doi.org/10.3390/horticulturae7020024

AMA Style

Costa-Santos M, Mariz-Ponte N, Dias MC, Moura L, Marques G, Santos C. Effect of Bacillus spp. and Brevibacillus sp. on the Photosynthesis and Redox Status of Solanum lycopersicum. Horticulturae. 2021; 7(2):24. https://doi.org/10.3390/horticulturae7020024

Chicago/Turabian Style

Costa-Santos, Marino, Nuno Mariz-Ponte, Maria C. Dias, Luísa Moura, Guilhermina Marques, and Conceição Santos. 2021. "Effect of Bacillus spp. and Brevibacillus sp. on the Photosynthesis and Redox Status of Solanum lycopersicum" Horticulturae 7, no. 2: 24. https://doi.org/10.3390/horticulturae7020024

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop