Changes in the photosynthetic apparatus during fusarium wilt of tomato

Pshibytko, N. L.; Zenevich, L.A.; Кабашникова, Л. Ф.

doi:10.1134/s1021443706010031

Cited by 39 publications

(32 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Besides, decreases in Fv/Fm and electron transfer rate (ETR, Supplementary Figure 2) were found in the current study, leading to a decrease in ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) activity. In this sense, Pshibytko et al (2006) attributed this result to a decrease in electron transport due to decreases in the acceptor flux in quinone A (QA) of the PSII.…”

Section: Discussionmentioning

confidence: 99%

Boosting photosynthetic machinery and defense priming with chitosan application on tomato plants infected withFusarium oxysporumf. sp.lycopersici

Carmona

Villarreal-Navarrete

Burbano-David

et al. 2020

Preprint

View full text Add to dashboard Cite

Physiological processes of plants infected by vascular pathogens are mainly affected by vascular bundle obstruction, decreasing the absorption of water and nutrients and gas exchange by stomatal closure, and inducing oxidative cascades and PSII alterations. Chitosan, a derivative of chitin present in the cell wall of some organisms including fungi, induces plant defense responses, activating systemic resistance. In this study, the effect of chitosan on the physiological and molecular responses of tomato plants infected with Fusarium oxysporum f. sp. lycopersici (Fol) was studied, evaluating the maximum potential quantum efficiency of PSII photochemistry (Fv/Fm), photochemical efficiency of PSII (Y(II)), photochemical quenching (qP), stomatal conductance (gs), relative water content (RWC), proline content, photosynthetic pigments, dry mass, and differential gene expression (PAL, LOXA, ERF1, and PR1) of defense markers. A reduction of 70% in the incidence and 91% in the severity of the disease was achieved in plants treated with chitosan, mitigating the damage caused by Fol on Fv/Fm, Y(II), and chlorophyll contents by 23%, 36%, and 47%, respectively. Less impact was observed on qP, gs, RWC, and dry mass (16%, 11%, and 26%, respectively). Chitosan-treated and Fol-infected plants over-expressed PR1a gene suggesting a priming-associated response. These results demonstrate the high potential of chitosan to protect tomato plants against Fol by regulating physiological and molecular responses in tomato plants.

show abstract

Section: Discussionmentioning

confidence: 99%

Boosting photosynthetic machinery and defense priming with chitosan application on tomato plants infected withFusarium oxysporumf. sp.lycopersici

Carmona

Villarreal-Navarrete

Burbano-David

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…In this study, high NPQ values were mainly observed in cape gooseberry plants inoculated with Foph and subjected to waterlogging periods. Zhou et al [96] also observed a higher NPQ in sweat weed (Kosteletzkya virginica L.) plants with waterlogging for 35 d. High NPQ values have also been reported in tomato plants after inoculation with FO [97,98]. A higher NPQ indicates a dissipation of excess energy in the PSII in the form of heat as a plant protection mechanism to stress [84,99].…”

Section: Chlorophyll Fluorescence Parametersmentioning

confidence: 97%

Physiological, Biochemical and Chlorophyll Fluorescence Parameters of Physalis Peruviana L. Seedlings Exposed to Different Short-Term Waterlogging Periods and Fusarium Wilt Infection

2019

View full text Add to dashboard Cite

Cape gooseberry has coped with abiotic and biotic stresses such as prolonged waterlogging periods and vascular wilt in recent years. The aim of this study was to evaluate the influence of four waterlogging periods on stomatal conductance (gs), leaf water potential (Ψwf), plant growth, leaf photosynthetic pigments, malondialdehyde (MDA) production, proline content and chlorophyll fluorescence parameters in cape gooseberry plants infected with Fusarium oxysporum f. sp. physali (Foph). Two-month-old ecotype “Colombia” plants were arranged in a completely randomized factorial design in eight treatments: plants without waterlogging (control), plants with waterlogging for 4, 6 and 8 d with and without Foph, respectively. The area under the disease progress curve was higher in inoculated plants subjected to 6 and 8 d of waterlogging (55.25 and 64.25) compared to inoculated plants but without waterlogging (45.25). The results also showed a lower plant growth, gs, Ψwf, leaf photosynthetic pigments and chlorophyll fluorescence parameters (Fv/Fm, electron transport rate (ETR), Y (II) and qP) as waterlogging periods in plants with Foph increased. However, this group of plants showed a greater proline and malondialdehyde (MDA) accumulation and a higher NPQ. In conclusion, cape gooseberry shows a low acclimation to waterlogging conditions of more than 6 d in soils with Foph.

show abstract

“…Fusarium verticillioides affects plant growth and development by interfering with plant physiological processes. Pshibytko et al (2006) have previously reported that Fusarium wilt inhibits photosynthetic activity in tomato plants. The authors have concluded that the impact was due to the damage to Photosystem II (PSII).…”

Section: Introductionmentioning

confidence: 99%

Impact of Fusarium verticillioides on chlorophyll fluorescence parameters of two maize lines

et al. 2019

View full text Add to dashboard Cite

Fusarium verticillioides is one of the most common phytopathogenic fungi affecting maize production, worldwide. The early identification of F. verticillioides infection in maize could be helpful to prevent the spreading of the fungus. Therefore, this study represents the use of chlorophyll fluorescence parameters to identify F. verticillioides infection in maize. Chlorophyll a fluorescence of control and F. verticillioides infected plants showed a typical polyphasic OJIP transient curve in both MO17 and B73 lines. Infected plants from both maize lines showed a different pattern of OJIP transient curve when compared to the control plants, respectively. This indicated that F. verticillioides had an effect on the photosynthesis of infected maize plants. This study demonstrated the importance of parameters such as: the activity of the watersplitting complex on the donor side of PSII (F v /F 0), minimum fluorescence (F 0), maximum fluorescence (F m), and absorption flux per one active reaction center (ABS/RC) to identify F. verticillioides infection in maize.

show abstract

Changes in the photosynthetic apparatus during fusarium wilt of tomato

Cited by 39 publications

References 13 publications

Boosting photosynthetic machinery and defense priming with chitosan application on tomato plants infected withFusarium oxysporumf. sp.lycopersici

Boosting photosynthetic machinery and defense priming with chitosan application on tomato plants infected withFusarium oxysporumf. sp.lycopersici

Physiological, Biochemical and Chlorophyll Fluorescence Parameters of Physalis Peruviana L. Seedlings Exposed to Different Short-Term Waterlogging Periods and Fusarium Wilt Infection

Impact of Fusarium verticillioides on chlorophyll fluorescence parameters of two maize lines

Contact Info

Product

Resources

About