Reactive oxygen species induce cyanide-resistant respiration in potato infected by Erwinia carotovora subsp. Carotovora

Dong, H.; Duan, Jiangong; Ma, Minzhi; Li, Zhongping; Li, Hongyu

doi:10.1016/j.jplph.2020.153132

Cited by 10 publications

(10 citation statements)

References 25 publications

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“…tomato was the dominant species and was one of the common pathogenic bacteria in plants (Primo et al, 2019;Elsharkawy et al, 2021;Yengkhom and Supriyo, 2021). Erwinia was also the dominant bacterium with an average abundance of 8% in diseased potatoes in our study, as the reported pathogen of potato soft rot (Makhlouf and Abdeen, 2014;Fujimoto et al, 2018;Hua et al, 2020), so these two dominant bacteria, Pseudomonas and Erwinia, may be the pathogenic bacteria causing potato diseases in our study. In addition, bacteria of the genera Flavobacteriaceae and Carnobacteriaceae, which also existed in diseased potatoes, have been reported to be the main components leading to meat deterioration during meat storage (Zhao et al, 2015).…”

Section: Discussionsupporting

confidence: 61%

Comparative Analysis of Microbial Community Diversity and Dynamics on Diseased Tubers During Potato Storage in Different Regions of Qinghai China

et al. 2022

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Effective storage of potatoes is very important for the food industry. Given the problems involving rotten potatoes and low quality during storage, harvested potatoes from the main potato-producing areas in the Qinghai Plateau were treated by selection and air drying (Group “A”) and the others were stored directly as controls (Group “C”). Then, the microbial community structure and diversity of diseased potato tubers from four main production areas were analyzed by high-throughput sequencing technology in different storage stages. The results showed that the community composition and diversity of microbes in different regions and storage periods were different, and the dominant fungi in diseased potato tubers were Boeremia in Huangyuan (HY), Maying (MY) and Zhongling (ZL) and Apiotrichum in Huangzhong (HZ) at the genus level. The dominant bacterial genus was Pseudomonas, but its abundance varied in samples from different regions and storage periods. In the analysis of indicator species, there were some common species and endemic species in each region and period, and the period with the largest number of different species was the third period. Among the four storage periods, the region with the largest number of different species was HZ. Some fungi, especially Fusarium and other potato pathogens, were more abundant in control Group “C” than in treatment Group “A.” In the diversity analysis, the α diversity of fungi in Group “C” was higher than that in Group “A,” but the α diversity of bacteria in Group “A” was higher than that in Group “C,” and there was no obvious regularity with storage time. The β diversity varied significantly among different regions. In addition, through functional prediction analysis, it was found that a plant pathogen was one of the main nutritional types of fungi, which indicated that treatment by selection and drying could significantly reduce phytopathogenic microbe and other microorganisms and could be used as an effective measure for potato storage compared with the prevention and control by drugs that can cause environmental pollution. Further analysis of co-occurrence network showed that pathogenic fungi Fusarium was negatively correlated with pathogenic bacteria Erwinia, and there is also a negative correlation between pathogens and antagonistic microorganisms indicated that there were various symbiotic relationships among microorganisms in diseased potatoes. This study may provide a theoretical basis for biological control of potato cellar diseases and the maintenance of potato quality during long-term storage.

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Section: Discussionsupporting

confidence: 61%

Comparative Analysis of Microbial Community Diversity and Dynamics on Diseased Tubers During Potato Storage in Different Regions of Qinghai China

et al. 2022

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“…2002; Vanlerberghe 2013; Hua et al . 2020). Cvetkovska & Vanlerberghe (2012) suggested that AOX together with MnSOD perform in a coordinated manner to regulate ROS production in plant hypersensitive response.…”

Section: Role Of Aox In Plant Hypersensitive Responsementioning

confidence: 99%

“…found a decrease in ROS production due to AOX respiration activity and an increase in activity of antioxidant enzymes, indicating that AOX is involved in stress signalling during plant hypersensitive response (Hua et al . 2020). Another study found an increase in AOX transcripts as well as an increase in plant defence enzyme activity in wheat plants infected with rust fungus (unpublished data).…”

Section: Role Of Aox In Plant Hypersensitive Responsementioning

confidence: 99%

The role of alternative oxidase in plant hypersensitive response

Suleman

et al. 2021

Plant Biol J

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The innate immune system of plants is crucial in defining the fate of a plant cell during plant–pathogen interactions. This response is often accompanied by a hypersensitive reaction leading to the death of a plant cell and restricted pathogen growth. Plant mitochondria, in this case, play a key role by maintaining a balance between cell respiration and reactive oxygen species formation. One of the key features of the hypersensitive response is the shift of the normal plant respiratory pathway to a special ‘alternative’ pathway. Plants contain an enzyme, alternative oxidase, for maintaining metabolic homeostasis of the cell. This energy dissipating respiration provides a branch in normal respiration by using ubiquinone to form water and heat, thus maintaining the energy status of the cell. Alternative oxidase is thought to minimize production of reactive oxygen species and can also function in ‘anti‐apoptotic’ machinery in plant cells. In this mini review, we briefly describe the alternative respiratory pathway and explain the role of alternative oxidase in important cellular processes, such as programmed cell death and the hypersensitive response.

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“…In contrast to that of animal mitochondria, plant mitochondria possess a unique respiratory pathway, the cyanide-insensitive alternative pathway (AOXs) that is catalyzed by the alternative oxidase, which is located in the mitochondrial inner membrane and acts as a terminal oxidase in mitochondrial electron transport respiration [ 14 , 15 ]. During plant-pathogen interactions, the operation level of the AOXs in host plants are enhanced in response to pathogen attack [ 16 , 17 , 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

“…Although the compatible interaction between potato tubers and Pcc . is accompanied by the acceleration of respiratory rate in tuber slices [ 14 , 25 ], the changes of mitochondrial respiratory processes and complex activity, as well as the role of the AOXs in the impaired mitochondrial respiratory chain remains unknown. Therefore, the study of the role of the AOXs on mitochondrial respiratory chain function during the interaction between potato tubers and Pcc.…”

Section: Introductionmentioning

confidence: 99%

Impairment of Respiratory Chain Function and Involvement of Alternative Respiratory Pathway in Mitochondria of Potato Tubers Infected by Pectobacteriumcarotovorum subsp. carotovorum

Suleman

Duan

et al. 2022

Foods

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The significance of alternative respiratory pathway (AOXs) during the interaction between soft rot bacteria (Pectobacterium carotovorum subsp. carotovorum, (Pcc.)) and potato tubers is well-defined. However, the role of the AOXs in impaired mitochondrial respiratory chain function during the Pcc. infection is yet to be studied. In this study, the results show that with the aggravation of infection of Pcc., the capacity for alternative respiration in mitochondria of potato tubers increased gradually. The mitochondrial membrane potential increased more significantly after infection with Pcc. when the AOXs in potato tubers was partially blocked using salicylhydroxamic acid (SHAM) beforehand. In addition, the activity of complex III decreased more drastically while the activity of complex IV increased more significantly in the partial absence of the AOXs in the mitochondria. Furthermore, the mitochondrial endogenous respiration, mitochondrial respiratory state 3 and respiratory control rate (RCR) decreased more significantly and the value of RCR reached around 1.0 with the aggravation of infection of Pcc. in the partially absence of AOXs in the mitochondria.

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Reactive oxygen species induce cyanide-resistant respiration in potato infected by Erwinia carotovora subsp. Carotovora

Cited by 10 publications

References 25 publications

Comparative Analysis of Microbial Community Diversity and Dynamics on Diseased Tubers During Potato Storage in Different Regions of Qinghai China

Comparative Analysis of Microbial Community Diversity and Dynamics on Diseased Tubers During Potato Storage in Different Regions of Qinghai China

The role of alternative oxidase in plant hypersensitive response

Impairment of Respiratory Chain Function and Involvement of Alternative Respiratory Pathway in Mitochondria of Potato Tubers Infected by Pectobacteriumcarotovorum subsp. carotovorum

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