Leaf age and light quality influence the basal resistance against Botrytis cinerea in strawberry leaves

Meng, Lijuan; Höfte, Monica; Labeke, Marie-Christine Van

doi:10.1016/j.envexpbot.2018.09.025

Cited by 31 publications

(47 citation statements)

References 79 publications

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“…Higher resistance to all the tested B. cinerea isolates (except for the non-pathogenic B7) was found in strawberry leaves grown under red LEDs ( Figure 6). Meng et al (2019) showed that red LED light increased strawberry leaf basal resistance against R16 (B1 in this study). Resistance improvement by red light was associated with lower hydrogen peroxide levels in the red-lightdeveloped leaves of strawberry (Meng et al, 2019).…”

Section: Strawberry Leaves Developed Under Red Light Displayed Enhancsupporting

confidence: 54%

“…The virulence of the Botrytis isolates assessed by the multispectral camera (F v /F m , ChlIdx, mAriIdx) were analyzed by one-way ANOVA for each light quality. As the light pretreatment affects both chlorophyll and polyphenol content (Meng et al, 2019), the effects of the light quality pretreatments were analyzed by ANCOVA using the images at the start (day 0) as covariate, adjusted means were calculated using Bonferroni for confidence interval adjustment. All assumptions for performing ANCOVA including homogeneity of regression slopes were checked.…”

Section: Discussionmentioning

confidence: 99%

“…Application of LED lighting also opens the possibility to increase the strawberry's resistance to B. cinerea. Indeed, we previously showed that leaves that develop under monochromatic red light are more resistant to Botrytis infection compared to white, blue, and blue+red lights (Meng et al, 2019). Yet, in aforementioned study only one Botrytis strain was investigated.…”

Section: Introductionmentioning

confidence: 99%

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Phenotypic Variation of Botrytis cinerea Isolates Is Influenced by Spectral Light Quality

et al. 2020

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Botrytis cinerea, a fungal pathogen that causes gray mold, displays a high degree of phenotypic diversity. Light emitting diodes (LEDs) with specific light spectrum are increasingly used as lighting resource for plant greenhouse production. The chosen light spectrum can also have an effect on the pathogens in this production system. In this study, we investigated the phenological diversity in 15 B. cinerea isolates upon different light treatments. Daylight, darkness, and LED lights with different wavelengths (white, blue, red, blue+red) were chosen as treatments. The 15 Botrytis isolates differed in their mycelial growth rate, conidia production, and sclerotia formation. Light quality had a limited effect on growth rate. All isolates sporulated under daylight treatment, red light resulted in lower sporulation, while white, blue, and blue+red light inhibited sclerotia formation in all isolates, and sporulation in most, but not all isolates. Pathogenicity of the Botrytis isolates was studied on 2-week-old strawberry (Fragaria × ananassa 'Elsanta') leaves grown under white, blue, and red LED lights. The isolates differed in virulence on strawberry leaves, and this was positively correlated to oxalic acid production by B. cinerea in vitro. Red LED light improved leaf basal resistance to all the tested Botrytis isolates. Blue light pretreatment resulted in decreased leaf resistance to some isolates. Furthermore, we used image analysis to quantify the virulence of the different Botrytis isolates based on changes in photosynthetic performance of the strawberry leaves: chlorophyll fluorescence (F v /F m), chlorophyll index (ChlIdx) and anthocyanin content (modified anthocyanin reflection index, mAriIdx). F v /F m showed a strong negative correlation with disease severity and can be an indicator for the early detection of gray mold on strawberry leaves.

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Section: Strawberry Leaves Developed Under Red Light Displayed Enhancsupporting

confidence: 54%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Phenotypic Variation of Botrytis cinerea Isolates Is Influenced by Spectral Light Quality

et al. 2020

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“…Blue light‐enriched illumination is reported to be beneficial in the enlargement of palisade cells or development of multiple layers of palisade cells (Table S1, Shengxin et al , Zheng and Van Labeke ), which can favor photosynthetic acclimation (Abidi et al , Calzavara et al , Sanches et al ). Metabolism of plants, including the antioxidative status, is influenced by light environment (Ouzounis et al , Meng et al ). Proline is known for its protective function under abiotic stress (Koca et al ) and higher proline levels were found when leaves developed under monochromatic blue for Chrysanthemum (Zheng and Van Labeke ) and strawberry (Meng et al ).…”

Section: Introductionmentioning

confidence: 99%

“…Metabolism of plants, including the antioxidative status, is influenced by light environment (Ouzounis et al , Meng et al ). Proline is known for its protective function under abiotic stress (Koca et al ) and higher proline levels were found when leaves developed under monochromatic blue for Chrysanthemum (Zheng and Van Labeke ) and strawberry (Meng et al ). Low light is associated with the increase of photosynthetic pigments, which contributes to improved light‐harvesting capacity of the leaves.…”

Section: Introductionmentioning

confidence: 99%

Spectral quality of monochromatic LED affects photosynthetic acclimation to high‐intensity sunlight of Chrysanthemum and Spathiphyllum

Zheng

Steppe

Labeke

2020

Physiologia Plantarum

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Vertical farming using light‐emitting diode offers potential for the early production phase (few weeks) of young ornamental plants. However, once transferred to the greenhouse, the photosynthetic acclimation of these young plants might depend on this initial light regime. To obtain insight about this acclimatization, Chrysanthemum (sun species) and Spathiphyllum (shade species) were preconditioned in growth chambers for 4 weeks under four light qualities: blue (B), red (R), red/blue (RB, 60% R) and white (W) at 100 μmol m−2 s−1. Monochromatic light (R and B) limited leaf development of both species, which resulted in a lower leaf mass per area when compared to multispectral light (RB for Chrysanthemum, RB and W for Spathiphyllum). R‐developed leaves had a lower photosynthetic efficiency in both species. After the light quality pretreatment, plants were transferred to the greenhouse with high‐intensity natural light conditions. On the first day of transfer, R and B preconditioned leaves of both species had an inhibited photosynthesis. After 1 week in natural light condition, rapid light curve parameters of Chrysanthemum leaves that developed under B acclimated to sunlight had a similar level than RB‐developed leaves unlike R‐leaves. Spathiphyllum leaves showed a decrease in maximum electron transport rate and this was most pronounced for the R pretreatment. After 1 month, R‐preconditioned Chrysanthemum had the lowest dry mass, while no effects on the dry weight of Spathiphyllum with respect to the pretreatments were observed. Light quality during preconditioning affected the leaf ability to acclimate to natural high light intensities in greenhouse environment.

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Nocturnal Red Light Application Modulated the Fumonisin B1-Induced Changes in Glutathione Transferases of Different Wheat Cultivars

Pelsőczi

Horváth

Czékus

et al. 2022

J Plant Growth Regul

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Plant defense responses against Fusarium infection can be controlled by light. In this study, the effects of nocturnal red light were investigated on glutathione transferases (GSTs) in the leaves of the moderate- and high-Fusarium resistant wheat cultivars, GK Ígéret and GK Arató, respectively. GST activity increased in the light phase during the day, while it decreased after midnight. Since GST activity was lowest at midnight, we examined whether red light application at midnight could prevent the night-time drop in enzyme activity. We found that 15-min-long nocturnal red light application was effective to increase GST activity at dawn. The effects of red light pretreatments on GST expression and activity, as well as the oxidative stress induced by fumonisin B1 (FB1), were investigated. FB1 exposure increased GST activity and the expression of GST genes at dawn but nocturnal red light application in combination with the mycotoxin also increased GST activity and the transcript levels of the selected GSTs in the resistant GK Arató. In addition to its effects on GSTs, it was discovered that, depending on the degree of tolerance, nocturnal red light increased the activity of the major antioxidant enzymes at dawn in both of the chosen wheat genotypes. These decreased FB1’s oxidative stress-causing actions, resulting in lower lipid peroxidation and less cell viability loss when exposed to the mycotoxin. Pretreatment with nocturnal red light enhanced the activity of GST and antioxidant enzymes in wheat plant leaves, contributing to FB1 detoxification and reducing oxidative stress.

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Leaf age and light quality influence the basal resistance against Botrytis cinerea in strawberry leaves

Cited by 31 publications

References 79 publications

Phenotypic Variation of Botrytis cinerea Isolates Is Influenced by Spectral Light Quality

Phenotypic Variation of Botrytis cinerea Isolates Is Influenced by Spectral Light Quality

Spectral quality of monochromatic LED affects photosynthetic acclimation to high‐intensity sunlight of Chrysanthemum and Spathiphyllum

Nocturnal Red Light Application Modulated the Fumonisin B1-Induced Changes in Glutathione Transferases of Different Wheat Cultivars

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