Sudden Decline of Date Palm Trees Caused by <i>Erwinia chrysanthemi</i>

Abdalla, Mohamed

doi:10.1094/pdis.2001.85.1.24

Cited by 10 publications

(5 citation statements)

References 5 publications

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“…The bacterium survives on crop residues and spreads to growing maize crops via water splash and insects (including the maize borer larvae-Chilo partellus) including through wound sites (Dalmacio et al 2007;Thind and Singh 1975). In date palm trees, leaves turn yellow and vascular tissues (including those in the roots) discolour, suggesting that movement and establishment of the causal agent, Dickeya spp., occurs in the vessels, blocks transpiration and leads to rotting throughout the plant (Abdalla 2001). For sweet potato, bacteria can be present as latent infections (Duarte and Clark 1992), with oxygen deprivation and thresholds for both soil and air temperatures contributing to disease development (Edmunds et al 2015).…”

Section: Colonisation and Infectionmentioning

confidence: 99%

Pectobacterium and Dickeya: Environment to Disease Development

Toth

Barny

Brurberg

et al. 2021

Plant Diseases Caused by Dickeya and Pectobacterium Species

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Article 25fa states that the author of a short scientific work funded either wholly or partially by Dutch public funds is entitled to make that work publicly available for no consideration following a reasonable period of time after the work was first published, provided that clear reference is made to the source of the first publication of the work.This publication is distributed under The Association of Universities in the Netherlands (VSNU) 'Article 25fa implementation' project. In this project research outputs of researchers employed by Dutch Universities that comply with the legal requirements of Article 25fa of the Dutch Copyright Act are distributed online and free of cost or other barriers in institutional repositories. Research outputs are distributed six months after their first online publication in the original published version and with proper attribution to the source of the original publication.

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Section: Colonisation and Infectionmentioning

confidence: 99%

Pectobacterium and Dickeya: Environment to Disease Development

Toth

Barny

Brurberg

et al. 2021

Plant Diseases Caused by Dickeya and Pectobacterium Species

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“…These results are in agreement with previous reports that approved infection of date palm plants with several pathogenic bacteria such as Bacillus spp. causing soft rot of date palm tissues (Leary et al., 1986), Erwinia chrysanthemi causing sudden decline (Abdalla, 2001; Benjama, 1994). Recently root rot disease of date palm plant caused by bacterial isolates of Alcaligenes faecalis and Pseudomonas aeruginosa in Egypt was approved (Ziedan et al., 2020).…”

Section: Discussionmentioning

confidence: 99%

“…In Egypt during 1992–1999, severe loss in date fruit production was caused by the infestation with RPW of 216,000 date palms (Murphy & Briscoe, 1999). Few genera of bacteria attack date palm plant causing deterioration such as sudden death by Erwinia chrysanthemi (Abdalla, 2001; Benjama, 1994), root rot by Alcaligenes faecalis and Pseudomonas aeruginosa (Ziedan et al., 2020). Burkholderia cepacia was first described in 1950 as the causal agent of sour skin disease on onion ( Allium cepa L.) (Burkholder, 1950), banana finger‐tip rot in Taiwan (Lee et al., 2003), bacterial fruit rot disease of apricot (Prunus armeniaca L.) in China (Fang et al., 2009), leaf streak of bird of paradise ( Strelitzia reginae Ait.)…”

Section: Introductionmentioning

confidence: 99%

Secondary invader bacteria associated with the red pest weevil infestation in date palm trees

et al. 2021

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The worldwide loss of date palm (Phoenix dactylifera L.) productivity is due to the infestation of the red pest weevil (RPW). The pest makes tunnels in the tree trunk and could be followed by secondary microbial infections causing oozing of fluid with a distinct fermentation odor. This study aimed at isolation and identification of secondary invader bacteria associated with the RPW and confirmation of their potential destructive effect on the tree. Four bacterial isolates were recovered from the infested date palm tissues, and they were identified based on phenotypic characteristics using the VITEK2 system. Three out of the four isolates were identified as Pseudomonas aeruginosa, and one isolate was identified as Burkholderia cepacia. All isolates caused rot of date palm germinated seeds (up to 40%), and wilt and root rot of date palm seedlings (40-100%). Pseudomonas aeruginosa (isolate No. 3) was the most aggressive isolate that involved 40% mortality and caused 100% of root rot incidence in date palm seedlings. Burkholderia cepacia showed the lowest degree of rot on the germinated seeds, percentage mortality, percentage root rot incidence of date palm seedlings. Pseudomonas aeruginosa (isolate No. 1) and B. cepacia caused a high loss in the weight of date palm petioles tissues (about 10%). The study threw light on the detrimental effects of secondary invader microbes associated with the RPW infestation. The study recommended an application of an integrated management program containing both antibacterial and insecticidal preparation in the management of the RPW to avoid a further negative effect on the palm trees.Abbreviations: NA, nutrient agar; RPW, red pest weevil.

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“…carotovora, Erwinia rhapontici and Erwinia chrysanthemi are the causal pathogens of soft rot on garlic cloves. Also, Abdalia (2001) recorded a new bacterial disease on date palm trees caused by Erwinia chrysanthemi. Several authors reported that Erwinia chrysanthemi were isolated from different plants and caused soft rot diseases [Aysan and Yildiz (2000); Lee, et al, (2002); Liu, et al, (2002);Gray, et al (2000) and Scortichni and Ascenzo (2003)].…”

Section: Isolation and Identification Of The Causal Pathogenmentioning

confidence: 99%

BACTERIAL STEM ROT DISEASE OF Yucca aloifolia IN EGYPT

Ismai

Abo-Elnaga

Ahmed

2006

AJAS

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A devastating stem rot disease of Yucca aloifolia, an ornamental plant, was observed in the greenhouse of the Faculty of Agric., Minia University. Naturally infected plants showed typical symptoms of soft rot on the stems. Four isolates of motile, rod shaped, gram negative bacteria were isolated from soft rotted areas. All isolates were pathogenic to yucca plants and induce soft rot symptoms, however, bacterial isolates differed in their virulence. Through different biochemical tests, bacterial isolates differed in their characteristics. The isolated pathogenic bacteria was identified as Erwinia chrysanthemi.Host range studies revealed that the bacterium was able to produce soft rot on fruits of eggplant, tomato, squash, pepper, potato tubers, carrot, turnip, onion, chrysanthemum and sunflower. Stems of maize, cowpea, broad bean show no symptoms and remain unaffected.The extracts of experimentally diseased yucca stems were active in pectinase and cellulase. On the other hand, no enzymes activities were detected in healthy tissues.A correlation between the total and reducing sugars and the pathogenicity of the tested bacterial isolates were detected.

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Sudden Decline of Date Palm Trees Caused by Erwinia chrysanthemi

Cited by 10 publications

References 5 publications

Pectobacterium and Dickeya: Environment to Disease Development

Pectobacterium and Dickeya: Environment to Disease Development

Secondary invader bacteria associated with the red pest weevil infestation in date palm trees

BACTERIAL STEM ROT DISEASE OF Yucca aloifolia IN EGYPT

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