Effects of Combined Application of Salicylic Acid and Proline on the Defense Response of Potato Tubers to Newly Emerging Soft Rot Bacteria (Lelliottia amnigena) Infection

Osei, Richard; Yang, Chengde; Wei, Lijuan; Jin, Mengjun; Boamah, Solomon

doi:10.3390/su14148870

Cited by 5 publications

(4 citation statements)

References 93 publications

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“…Previous studies indicated that Kh application increased antioxidant activity in pepper plants under saline conditions [ 79 ]. The role of SA treatment in salinity resistance was reported in some previous studies [ 33 , 34 , 35 ]. Increasing GSH and AA contents in plants by SA application could enhance a mechanism to protect plants from the accumulation of ROS under stress conditions [ 80 ].…”

Section: Discussionmentioning

confidence: 71%

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Application of Potassium Humate and Salicylic Acid to Mitigate Salinity Stress of Common Bean

El-Beltagi

Al-Otaibi

Parmar

et al. 2023

Life

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In the current study, we investigated the effect of potassium humate (Kh) and salicylic acid (SA) in mitigating the salinity stress of common bean plants. Common bean seedlings were treated with 0.2 g/L SA as a foliar application and 0.3 g/L Kh as a soil application individually or in combination. After 7 days of germination, plants were treated with 50 mM NaCl and normal water as a control. Our results indicate that salt treatment reduced the plant growth (fresh and dry shoots and roots), leaf pigments (total chlorophyll and carotenoids), ascorbic acid (AA), glutathione (GSH), and potassium (K) contents. On the contrary, proline content; sodium (Na); hydrogen peroxide (H2O2); superoxide anion (O2•−); and antioxidant enzymes, including catalase (CAT), peroxidase (POX), and superoxide dismutase (SOD), were increased by saline stress. However, applying either individual Kh and SA or their combination stimulated seedling growth under salinity stress by increasing growth parameters, leaf pigment contents, AA, GSH, proline content, K content, and antioxidant enzymes compared with the control. Additionally, Na content, H2O2, and O2•− were reduced by all applications. The application of the Kh (0.3 g/L) + SA (0.2 g/L) combination was more effective than using the individual compounds. In conclusion, applications of Kh + SA can mitigate salt stress and improve the seedling growth of common bean.

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Section: Discussionmentioning

confidence: 71%

“…Most reports indicate the positive role of foliar application with SA in resistance to salinity in different crops, such as strawberries [ 31 ], cabbage [ 32 ], and cowpea [ 33 ]. Previous studies reported the role of exogenous SA application in mitigating biotic and abiotic stresses [ 34 , 35 ].…”

Section: Introductionmentioning

confidence: 99%

Application of Potassium Humate and Salicylic Acid to Mitigate Salinity Stress of Common Bean

El-Beltagi

Al-Otaibi

Parmar

et al. 2023

Life

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“…Lelliottia amnigena is included in phylum Pseudomonadota , class Gammaproteobacteria , family Enterobacteriaceae , genus Lelliotia together with L. nimipressuralis (initially known as Erwinia nimipressuralis and then reclassified as Enterobacter nimipressuralis ), and a new species L. jeotgali , which is associated with traditional Korean fermented clam [ 10 ]. Virulence factors are represented by pectinase, protease, pectin lyase, and cellulase [ 11 ].…”

Section: Discussionmentioning

confidence: 99%

Lelliottia amnigena and Pseudomonas putida Coinfection Associated with a Critical SARS-CoV-2 Infection: A Case Report

Birlutiu,

Dobritoiu

2023

Microorganisms

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Lelliottia amnigena is a Gram-negative facultative anaerobic bacillus identified from water sources and later from food (onions, cream, unpasteurized milk, and Spanish pork sausages), which, under certain circumstances, can cause infections in humans, especially in immunocompromised patients. Few cases of human infections have been reported in the literature, such as endophthalmitis, urinary tract infection, pyonephrosis, and sepsis. We describe the case of a 69-year-old Caucasian male patient who lives in an urban environment and presents himself to the emergency department with chills, fever, myalgias, marked physical asthenia, dry cough, dyspnea, symptoms for which he is tested and confirmed with SARS-CoV-2 infection using real-time reverse transcriptase–polymerase chain reaction (RT-PCR) from nasal and pharyngeal swabs, after being admitted the same day (25 May 2023) to the Infectious Diseases Clinic from the County Clinical Emergency Hospital Sibiu, Romania. At the time of admission, a pulmonary computerized tomography (CT) scan was performed, which revealed a severity score of 10 out of 25. In the second week of the disease, the patient presents with hemoptysis, from which bacteriological examinations are carried out, and Pseudomonas putida and Lelliottia amnigena are identified. The evolution was slowly favorable under antiviral treatment, corticotherapy, antibiotic therapy (in the absence of the identified etiology, initially meropenem was administered in association with linezolid, and then ceftazidime-avibactam), voriconazole, anakinra, salbutamol inhaler, inhalation corticosteroids, with slow reduction in oxygen requirement, the patient continued oxygen therapy at home after discharge with a flow rate of 5 L/minute. During the third harvesting of sputum samples, P. putida was isolated along with L. amnigena, both strains of low-virulence species, and maintained susceptibility to antibiotics. In the context of an immunosuppressed patient with previous pulmonary surgery for actinomycosis, chronic obstructive pulmonary disease, and bronchiectasis, all these conditions are favorable for biofilm formation. L. amnigena remains a pathogen rarely isolated in human pathology, but we should pay more attention, especially in the immunosuppressed patient, where it can be responsible for an extremely serious clinical picture.

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“…The assay on potato tuber slices was carried out following the methods reported in the literature ( Mikiciński et al., 2010 ; Osei et al., 2022 ). Briefly, the tubers were first washed under tap water, dried with cleaning paper cloth, dipped for 5 s into 96% ethanol, air dried, and then flamed and cut into 10-mm-thick slices.…”

Section: Methodsmentioning

confidence: 99%

Targeted metabolite profiling of Salvia rosmarinus Italian local ecotypes and cultivars and inhibitory activity against Pectobacterium carotovorum subsp. carotovorum

Iobbi,

Donadio,

Lanteri

et al. 2024

Front. Plant Sci.

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IntroductionThe development of agriculture in terms of sustainability and low environmental impact is, at present, a great challenge, mainly in underdeveloped and marginal geographical areas. The Salvia rosmarinus “Eretto Liguria” ecotype is widespread in Liguria (Northwest Italy), and farmers commonly use it by for cuttings and for marketing. In the present study, this ecotype was characterized in comparison with other cultivars from the same geographical region and Campania (Southern Italy), with a view to application and registration processes for the designation of protected geographical indications. Moreover, the possibility of using the resulting biomass after removing cuttings or fronds as a source of extracts and pure compounds to be used as phytosanitary products in organic farming was evaluated. Specifically, the potential of rosemary extracts and pure compounds to prevent soft rot damage was then tested.MethodsA targeted NMR metabolomic approach was employed, followed by multivariate analysis, to characterize the rosemary accessions. Bacterial soft rot assay and disk diffusion test were carried out to evaluate the activity of extracts and isolated compounds against Pectobacterium carotovorum subsp. carotovorum. Enzymatic assay was performed to measure the in vitro inhibition of the pectinase activity produced by the selected pathogen. Molecular docking simulations were used to explore the possible interaction of the selected compounds with the pectinase enzymes. Results and DiscussionThe targeted metabolomic analysis highlighted those different geographical locations can influence the composition and abundance of bioactive metabolites in rosemary extracts. At the same time, genetic factors are important when a single geographical area is considered. Self-organizing maps (SOMs) showed that the accessions of “Eretto Liguria” appeared well characterized when compared to the others and had a good content in specialized metabolites, particularly carnosic acid. Soft rotting Enterobacteriaceae belonging to the Pectobacterium genus represent a serious problem in potato culture. Even though rosemary methanolic extracts showed a low antibacterial activity against a strain of Pectobacterium carotovorum subsp. carotovorum in the disk diffusion test, they showed ability in reducing the soft rot damage induced by the bacterium on potato tissue. 7-O-methylrosmanol, carnosol and isorosmanol appeared to be the most active components. In silico studies indicated that these abietane diterpenoids may interact with P. carotovorum subsp. carotovorum pectate lyase 1 and endo-polygalacturonase, thus highlighting these rosemary components as starting points for the development of agents able to prevent soft rot progression.

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Effects of Combined Application of Salicylic Acid and Proline on the Defense Response of Potato Tubers to Newly Emerging Soft Rot Bacteria (Lelliottia amnigena) Infection

Cited by 5 publications

References 93 publications

Application of Potassium Humate and Salicylic Acid to Mitigate Salinity Stress of Common Bean

Application of Potassium Humate and Salicylic Acid to Mitigate Salinity Stress of Common Bean

Lelliottia amnigena and Pseudomonas putida Coinfection Associated with a Critical SARS-CoV-2 Infection: A Case Report

Targeted metabolite profiling of Salvia rosmarinus Italian local ecotypes and cultivars and inhibitory activity against Pectobacterium carotovorum subsp. carotovorum

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