Histo-pathological evaluation of the Fusarium species causing malformation disease of Mangifera indica

M, Wafaa Haggag; Zakaria, Amin; Hazza, M; S, Sehab F.; M, Abd El-Wahab

doi:10.4172/2157-7471.1000103

Cited by 4 publications

(5 citation statements)

References 6 publications

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“…Inflorescence and vegetative malformation of mango, occurs in many mango-growing countries worldwide and is one of the most important diseases of this crop (Ploetz et al, 2002). Haggag et al (2011) reported that vegetative and floral malformation appeared where mycelium of Fusarium species was present in the tissue at high concentrations which support our findings. In transverse section of malformed tissues showed necrosis of cortex cells and damage of vascular system caused by pathogen.…”

Section: Disccussionsupporting

confidence: 81%

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HOST PATHOGEN INTERACTION STUDY IN MALFORMED AFFECTED TISSUES OF <i>MANGIFERA INDICA</i> L.

Kumar¹,

Kamle²,

Gupta³

et al. 2013

American Journal of Agricultural and Biological Sciences

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The malformation disease of mango by Fusarium moniliforme var. subglutinan is one of the major causes of huge economical loss every year. Early diagnosis of the pathogens can help cultivators to protect the mango orchid and fruits from successive and secondary infection. The molecular detection is one of the better choices among available techniques for diagnosis. But the farmers or individual cultivars from tropical and subtropical countries like India, Pakistan, Malaysia, Vietnam, Philippines, have lots of limitation to use molecular method. Another problem with this pathogen is lack of specific biomarker. Thus the present study was designed to develop a morphological and histopathological methodology to detect Fusarium moniliforme var. subglutinans and its host-pathogen interaction between fungus and hot tissues. Fresh and preserved (Formaldehyde: Acetic Acid: Alcohol (FAA) solution) tissues were used to check the efficacy of the method. The inter and intracellular distribution of fungal hyphae, in various tissue like cortex, phloem and parenchymatous pith cell, was clearly revealed by this method. The characteristics which were observed like detection of the mycelium threads at the juncture of the shoot tip, axillary buds, petels and sepals axis of the malformed or infected tissues. The Resin accumulation in the parenchymatous and other cells of vegetative tissue was also found as characteristics of this pathogen infection. This study is being also important in terms of identification and growth behavior of the pathogen.

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Section: Disccussionsupporting

confidence: 81%

“…Samples were dipped in Formaldehyde: Acetic Acid: Absolute Alcohol (FAA) (5:5:90 mL) for the storage and further use Haggag et al, 2011). The samples were left in the above solution till they were processed further.…”

Section: Sample Collectionmentioning

confidence: 99%

HOST PATHOGEN INTERACTION STUDY IN MALFORMED AFFECTED TISSUES OF <i>MANGIFERA INDICA</i> L.

Kumar¹,

Kamle²,

Gupta³

et al. 2013

American Journal of Agricultural and Biological Sciences

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“…Thick and dark coloured hyphae were detected throughout the vascular tissues and cortical tissues along with presence of degenerated areas (Haggag et al 2011). Another study on infection process of F. oxysporum f. sp.…”

Section: Discussionmentioning

confidence: 99%

“…Histopathological studies have been carried on various plants infected with Fusarium species including passion fruit (Ortiz et al 2014), mango (Haggag et al 2011), bean (Pereira et al 2013), staghorn sumac plant (Ouellette et al 2005), grapevine (Atia et al 2003), and sweet corn (Lawerence et al 1981). Histopathological studies have been carried out on sesame infected with Pseudomonas syringae pv.…”

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confidence: 99%

Histopathological studies of sesame (Sesamum indicum) seedlings infected with Fusarium oxysporum

Ara¹

2017

PPQ

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Sesame (Sesamum indicum L.) is one of the most important and oldest oil seed crops, and vascular wilt caused by the soil-borne fungus Fusarium oxysporum is the most destructive disease of sesame worldwide. Histopathological studies were conducted on sesame plants after artificial inoculation with F. oxysporum. Characteristic disease symptoms such as chlorotic and wilted leaves appeared 15-20 days after inoculation. Light microscopic studies revealed the presence of pathogen in xylem vessels during initial stages. The pathogen then moved to adjacent cortical and epidermal cells intercellularly causing disintegration of the cells. Formation of cavities and plugging of xylem vessels with gum was observed, which retards water and nutrient supply to plants, thus resulting in wilting and ultimately leading to death of plant.

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“…Mok and Duffy [10] worked on various indentation velocities and strain rate. Haggag and his group [11][12][13][14][15] developed an automated ball indentation (ABI) set-up. Using this set-up many research group studied flow properties of different materials.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical study of ball indentation for evaluation of mechanical properties and fracture toughness of structural steel

Ghosh

Tarafder

Sivaprasad

et al. 2010

Trans Indian Inst Met

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Determination of mechanical properties of materials using non-conventional techniques has been an active area of research for a long time. Among various small specimen techniques to determine mechanical properties of materials, the ball indentation technique (BIT) has proved to be advantageous. BIT is used to measure material's mechanical properties including fracture toughness when a tensile test cannot be performed: on welded joints or critical locations of components under service. The present work highlights the applicability of BIT for evaluating flow behaviour of engineering structural steels En24. Standard mechanical properties like ultimate tensile strength, yield stress, strain hardening coefficient evaluated for steels with varying microstructures generated through heat treatment. To determine fracture toughness from the flow behaviour, non linear damage models have been utilized. Using this model, fracture toughness of the En24 steel at different heat treated conditions has been computed using the results generated by the BIT. These results are verified with the already established correlation in literature. Numerical validation of the results generated by the BIT has been carried out by Finite Element Modelling (FEM) using standard ABAQUS software package. The FE model of the BI simulation helps to compute sub indenter stress-strain fields which determine the extent of pile-up in highly ductile materials.

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Histo-pathological evaluation of the Fusarium species causing malformation disease of Mangifera indica

Cited by 4 publications

References 6 publications

HOST PATHOGEN INTERACTION STUDY IN MALFORMED AFFECTED TISSUES OF <i>MANGIFERA INDICA</i> L.

HOST PATHOGEN INTERACTION STUDY IN MALFORMED AFFECTED TISSUES OF <i>MANGIFERA INDICA</i> L.

Histopathological studies of sesame (Sesamum indicum) seedlings infected with Fusarium oxysporum

Experimental and numerical study of ball indentation for evaluation of mechanical properties and fracture toughness of structural steel

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