Bacterial leaf rot ofAloe vera L., caused byErwinia chrysanthemi biovar 3

Laat, P. C. A. De; Verhoeven, J.T.W.; Janse, J.

doi:10.1007/bf01871968

Cited by 11 publications

(4 citation statements)

References 3 publications

(4 reference statements)

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“…Pectobacterium chrysanthemi) has been reported from different parts of the world. This disease was first reported from Caribbean island of Aruba in 1994 (De Laat et al, 1994) and Korea (Jin et al, 1994), later from India in 2005 (Mandal and Maiti, 2005) and Bangladesh in 2016 (Pervez et al, 2016 D. chrysanthemi, D. dadantii, D. zeae, D. dianthicola, D. dieffenbachia and D. paradisiaca (Samson et al, 2005).…”

Section: Isolation Of Causal Pathogenmentioning

confidence: 99%

First Report of Dickeya chrysanthemi Causing Bacterial Soft Rot of Aloe vera in Sri Lanka

Weeraratne

Dissanayake

2021

J Agric Sciences

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Purpose: In September 2019, a rapidly spreading soft rot disease was observed in an Aloe vera cultivation in Puttlam District, Sri Lanka causing rotting of leaves and whole plant death, within three to five days. Identification of causal pathogen of soft rot was the main objective for effective management of the disease. The aim of this study was to isolate and molecular identification of causal pathogen of soft rot disease of A. vera and to confirm its pathogenicity. Research Method:The causal bacterium was isolated on Nutrient Agar medium and initially identified by colony characters. Pathogenicity was assessed by inoculation of leaves of potted A. vera plants with bacterial suspension of each isolates (x108 cfu ml -1 ). Bacterial DNA was extracted and subjected to PCR, using universal primers 27F and 1492R to amplify 16S rRNA region of the bacterium. The PCR products were sequenced and homology search was performed with GenBank database. Findings: Typical field symptoms began appearing after 24 hrs on inoculated plants, with the death of whole plant within two-three days after inoculation Based on PCR analysis, sequencing and homologysearch results, the causal pathogen of the bacterial soft rot disease of A. vera was identified as Dickeya chrysanthemi (former E. chrysanthemi). Sequences were deposited in GenBank for two bacterial isolates, kb (Accession No.MT028490.1) and kd (Accession No.MT028539.1). A BLAST search revealed 99 % identity with D. chrysanthemi from China (JF779681.1).Originality/Value: To our knowledge, this is the first report of D. chrysanthemi causing bacterial soft rot of A. vera in Sri Lanka. This finding will be very useful to formulating disease management strategies for bacterial soft rot of A. vera and to prevent outbreak of the disease.

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Section: Isolation Of Causal Pathogenmentioning

confidence: 99%

First Report of Dickeya chrysanthemi Causing Bacterial Soft Rot of Aloe vera in Sri Lanka

Weeraratne

Dissanayake

2021

J Agric Sciences

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“…This disease was first reported from the Caribbean island of Aruba [1] and Korea [2]. However, this is the first report of the disease from Bangladesh.…”

Section: Editorialmentioning

confidence: 99%

First Report of Bacterial Soft Rot of Aloe vera (Aloe barbadensis ) Caused by Pectobacterium chrysanthemi in Bangladesh

Pervez¹,

Ms²,

Ms³

2016

J Plant Pathol Microbiol

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“…Penyakit busuk lunak pada tanaman lidah buaya disebabkan oleh bakteri Erwinia chrysanthemi (sinonim Pectobacterium chrysanthemi) (Mandal & Maiti, 2005;Charkowski, 2007). De Laat et al (1994) melaporkan bahwa penyakit busuk lunak pada daun lidah buaya disebabkan oleh Erwinia chrysanthemi biovar 3. Berdasarkan wawancara dengan petani, kerugian karena penyakit busuk lunak dapat mencapai 25%.…”

Section: Pendahuluanunclassified

UJI PENGGABUNGAN PGPF DAN Pseudomonas putida STRAIN PF-20 DALAM PENGENDALIAN HAYATI PENYAKIT BUSUK LUNAK LIDAH BUAYA DI TANAH GAMBUT

Supriyanto

Priyatmojo

Arwiyanto

2011

Jurnal Hama dan Penyakit Tumbuhan Tropika

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Aloe (Aloe vera L. Webb) planted in West Borneo peat land is well known to have the best product quality in Indonesia. Bacterial soft rot is one of the constraints on aloe cultivation on peat land. Many methods have not given significant result for controlling this disease. The research objectives were to study the application of PGPF and its combination with Pseudomonas putida Pf-20 for controlling aloe bacterial soft rot on peat land. In vitro test showed that two isolates of PGPF tested had different respons when combining with P. putida Pf-20. The bacterial P. putida Pf-20 inhibit the growth of PGPF SNTH003 (Aspergillus sp.) as 20.14% on King’s B and 7.48% on PDA, whereas SNTH001 (Penicillium sp.) as 62.4% on King’s B dan 34.39% on PDA. Glass house trial showed that root dipping in P. putida Pf-20 suspension could not promote the growth of aloe, but could reduce the disease intensity. The single application of SNTH001 and SNTH003 isolates were able to increase the growth of aloe compare with its combination each of PGPF isolates with P. putida Pf-20. Single application of SNTH003, SNTH001 and P. putida Pf-20 was able to reduce the disease intensity of bacterial soft rot, but the capability decreased when each of PGPF combined with P. putida Pf-20. However combination between SNTH003 and P. putida Pf-20 increased that disease intensity. The lowest disease intensty (25%) obtained by using SNTH001 isolate.

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Bacterial leaf rot ofAloe vera L., caused byErwinia chrysanthemi biovar 3

Cited by 11 publications

References 3 publications

First Report of Dickeya chrysanthemi Causing Bacterial Soft Rot of Aloe vera in Sri Lanka

First Report of Dickeya chrysanthemi Causing Bacterial Soft Rot of Aloe vera in Sri Lanka

First Report of Bacterial Soft Rot of Aloe vera (Aloe barbadensis ) Caused by Pectobacterium chrysanthemi in Bangladesh

UJI PENGGABUNGAN PGPF DAN Pseudomonas putida STRAIN PF-20 DALAM PENGENDALIAN HAYATI PENYAKIT BUSUK LUNAK LIDAH BUAYA DI TANAH GAMBUT

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