Shubhi Avasthi

Shubhi Avasthi
  • Ph.D.
  • Abhilashi Educational Society

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66
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Publications (66)
Article
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This paper represents the fifth One Stop Shop (OSS) series contribution. This series provides background, disease symptoms, pathogen biology and epidemiology (when available) distribution, hosts for the treated genera, and important gene regions for a better resolution. Species that have pathogenic data are also provided under each genus. This fift...
Article
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With the simultaneous growth in interest from the mycological community to discover fungal species and classify them, there is also an important need to assemble all taxonomic information onto common platforms. Fungal classification is facing a rapidly evolving landscape and organizing genera into an appropriate taxonomic hierarchy is central to be...
Article
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Ravenelia is the third largest rust genus of the order Pucciniales with more than 200 described species. It is an important rust genus that has undergone tremendous taxonomic changes. This genus produces teliospores united into a head on a compound pedicel composed of two to several hyphae with autoecious, macro-, demi-to hemi-, and, more rarely, m...
Article
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The Global Consortium for the Classification of Fungi and fungus-like taxa is an international initiative of more than 550 mycologists to develop an electronic structure for the classification of these organisms. The members of the Consortium originate from 55 countries/regions worldwide, from a wide range of disciplines, and include senior, mid-ca...
Article
Full-text available
The Global Consortium for the Classification of Fungi and fungus-like taxa is an international initiative of more than 550 mycologists to develop an electronic structure for the classification of these organisms. The members of the Consortium originate from 55 countries/regions worldwide, from a wide range of disciplines, and include senior, mid-ca...
Article
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Fig rust is one of the serious fungal diseases caused by Cerotelium fi ci which causes great loss to the overall growth and yield of the plant. This disease is generally characterized by pale reddish-brown to reddish-brown angular leaf spots, typically found on the adaxial surfaces of the leaves, whereas the corresponding abaxial surface of the sam...
Article
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Puccinia, which comprises 4000 species, is the largest genus of rust fungi and one of the destructive plant pathogenic rust genera that are reported to infect both agricultural and nonagricultural plants with severe illnesses. The presence of bi-celled teliospores is one of the major features of these rust fungi that differentiated them from Uromyc...
Article
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Pea is third most important pulse crop of the world which is being cultivated all over the globe over the land area of two million hectares. Despite of its being grown in large area, this crop is infected by numerous pathogens including rust disease. This rust is disease of pea is caused by Uromyces viciae fabae affect the pea crop all over the mid...
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The rust genus Skierka belonging to the phylum Basidiomycota was described in 1900 by Raciborski with Skierka canarii as the type species. The published literature on this rust genus reveals its ambiguity in taxonomic placement. It was challenging to taxonomically delineate and precisely identify each species within this genus due to the species sh...
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Mycorrhizal fungi are associated in mutualistic symbiosis relationships with fine roots of the plants. These fungi help in enhancing plant health to combat both biotic and abiotic stresses. The present investigation was undertaken to study the effects of arbuscular mycorrhizal fungi (AMF) on the growth performance of pea (Pisum sativum). Soils were...
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Uromyces is the second-largest plant pathogenic rust genus, is responsible for numerous diseases, and has major effects on both agricultural and non-agricultural plants. The genus is generally characterized by its unicellular teliospores that help to characterize it and distinguish it from another important rust genus, Puccinia. In this study, a gl...
Article
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Uromyces is an important plant pathogenic genus of rust fungi (Pucciniales, Basidiomycota). Uromyces fabae is one of the major species of this rust genus that affects the plant family Fabaceae. This rust fungus is autoecious in nature, produces aeciospores, urediospores and teliospores found on the surface of the host plant. This fungus has worldwi...
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This study presented a comprehensive overview on fungal diseases of Aloe vera found commonly in India. The detailed analyses of the information obtained from the present study and previously published literature revealed that diseases of A. vera can be categorized into two main categories as spots and rots caused by various fungal pathogens. Total...
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Arbuscular mycorrhizal fungi (AMF) are soil fungi which form a mutualistic symbiosis with the roots of plants and enhanced uptake of immobile nutrients from the soil. The present study was carried out to study the association of arbuscular mycorrhizal fungi (AMF) with roots and rhizosphere of pea (Pisum sativum). A total of 17 AMF fungi belonging t...
Article
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Fungi are an important and diverse component in various ecosystems. The methods to identify different fungi are an important step in any mycological study. Classical methods of fungal identification, which rely mainly on morphological characteristics and modern use of DNA based molecular techniques, have proven to be very helpful to explore their t...
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Rust fungi show unique systematic characteristics among all fungal groups. A single species of rust fungi may produce up to five morphologically and cytologically distinct spore-producing structures thereby attracting the interest of mycologist for centuries. In India, the research on rust fungi started with the arrival of foreign visiting scientis...
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Rusts constitute a major group of the Kingdom Fungi and they are distributed all over the world on a wide range of wild and cultivated plants. It is the largest natural group of plant pathogens including 95% of the subphylum Pucciniomycotina and about 8% of all described Fungi. This article provides an overview and outline of rust fungi of India wi...
Article
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Rusts constitute a major group of the Kingdom Fungi and they are distributed all over the world on a wide range of wild and cultivated plants. It is the largest natural group of plant pathogens including 95% of the subphylum Pucciniomycotina and about 8% of all described Fungi. This article provides an overview and outline of rust fungi of India wi...
Article
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This is a continuation of a series focused on providing a stable platform for the taxonomy of phytopathogenic fungi and fungus-like organisms. This paper focuses on one family: Erysiphaceae and 24 phytopathogenic genera: Armillaria, Barriopsis, Cercospora, Cladosporium, Clinoconidium, Colletotrichum, Cylindrocladiella, Dothidotthia,, Fomitopsis, Ga...
Article
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Aloe vera (L.) Burm. f. is an important medicinal plant with long time tradition of use by variety of cultures. This plant is suffered with various fungal diseases caused by variety of fungal pathogens in different seasons which affects its morphological characters and diminishes the quality, quantity and production of gel. The present study was ai...
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A checklist of cercosporoid fungi reported from Himachal Pradesh, India, has been prepared on the basis of available publications. A total of 103 species belonging to 15 genera of cercosporoid fungi have been reported from Himachal Pradesh on 118 plant species belonging to 46 families. The species richness of cercosporoid fungi in the region was as...
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This article provides an outline of the classification of the kingdom Fungi (including fossil fungi. i.e. dispersed spores, mycelia, sporophores, mycorrhizas). We treat 19 phyla of fungi. These are Aphelidiomycota, Ascomycota, Basidiobolomycota, Basidiomycota, Blastocladiomycota, Calcarisporiellomycota, Caulochytriomycota, Chytridiomycota, Entomoph...
Preprint
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This article provides an outline of the classification of the kingdom Fungi (including fossil fungi. i.e. dispersed spores, mycelia, sporophores, mycorrhizas). We treat 19 phyla of fungi. These are Aphelidiomycota, Ascomycota, Basidiobolomycota, Basidiomycota, Blastocladiomycota, Calcarisporiellomycota, Caulochytriomycota, Chytridiomycota, Entomoph...
Article
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A severe rust infection was observed on the plantations of Oxalis corniculata (Oxalidaceae), commonly known as procumbent yellow sorrel, in Himachal Pradesh and Chandigarh, and on O. latifolia, known as garden pink-sorrel, in Uttarakhand in northern India. Detailed morphological examination of the diseased leaf samples was conducted, which confirme...
Chapter
Nanoscience is an interdisciplinary science which involves the study of phenomenon and manipulation of materials on ultra-small (nano)scale. Their nanostructure provides them an identity as key player in multidisciplinary approaches including agriculture, chemical industries, drug designing and drug delivery, electronics, fermentation technologies,...
Article
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A severe rust infection was observed on the plantations of Oxalis corniculata (Oxalidaceae), commonly known as procumbent yellow sorrel, in Himachal Pradesh and Chandigarh, and on O. latifolia, known as garden pink-sorrel, in Uttarakhand in northern India. Detailed morphological examination of the diseased leaf samples was conducted, which confirme...
Article
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An updated analysis of the diversity of rust fungi in Himachal Pradesh is provided herein as a product of field surveys, of mycological analysis, and of all forms of published documentation and literature. The results of all forms of analysis revealed that Himachal Pradesh has 167 species of rust fungi belonging to the class Pucciniomycetes. The cl...
Article
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The survey was conducted to record the disease incidence, severity and frequency of occurrence of fungal pathogens on Aloe vera in sixteen nurseries and two botanical gardens of Gwalior during winter and rainy season of 2013 & 2014. The present survey revealed that disease incidence was found significantly higher in winter season as compared to rai...
Article
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This study aimed to determine the alterations in major biochemical contents of Aloe verainfested by Colletotrichum gloeosporioides. Efects of fungal pathogen C. gloeosporioideson chlorophyll-a, chlorophyll-b, total chlorophyll, total soluble sugar, total phenols, total anthraquinones, total favonoids, carotenoids and vitamin E were analyzed in art...
Article
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Capnodium berberidis, a sooty mould fungus, previously reported only from Pakistan in 1978, was recently observed on Berberis lycium in Jot Pass, district Chamba of Himachal Pradesh, India. Berberis lycium is a well-known small to medium sized spiny, woody, deciduous or evergreen medicinal and ornamental plant distributed throughout temperate and s...
Book
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Fungi are one of the important components in the biosphere, ubiquitous in nature and essential in recycling of nutrients in all type of habitats. These organisms play key role as decomposers, phytopathogens, symbionts and in elemental cycles. Despite of their important roles in the biosphere, it is important to explore all categories of fungi. This...
Article
Aloe vera (L.) Burm. f., an important medicinal plant suffers with a huge loss in its yield due to the attack of number of fungal pathogens. The aim of the present study was to analyze the biochemical changes in A. vera infected by Fusarium proliferatum (Matsushima) Nirenberg causing leaf spot disease in plant. Artificially infested leaves were exa...
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A rust fungus occurring on bamboo leaves from Bilaspur, Himachal Pradesh, North India is described and illustrated. A critical morphological and microscopic examination revealed it to be Kweilingia divina. It is the synonym of Dasturella divina, the type species for the fungal genus Dasturella, named in 1943 from infected leaf samples of bamboo (Ba...
Article
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Severe leaf spot disease was observed on Aloe vera plants in the winters of 2011 and 2012 during a survey of various nurseries of Gwalior, India. Irregular, sunken, dark creamish brown spots having reddish brown margin were noticed on both surfaces of the leaves. The causal organism was consistently isolated from symptomatic leaves on potato dextro...
Article
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Powdery mildews are obligate biotropic fungal parasites responsible for disease on a wide range of host plants. They are easily recognizable as white powdery growth on leaves, shoots and sometimes on flowers and even on fruits. This checklist of powdery mildew fungi of Himachal Pradesh, India is based on an exhaustive bibliographic survey of the li...
Article
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Aloe vera (Aloe barbadensis Miller) is a marvelous medicinal plant well known for its excellent medicinal properties. Leaf spot and root rot diseases were found on Aloe vera in various areas of Gwalior, Madhya Pradesh, India, in winters of 2011-2012. The typical disease symptoms were observed on both abaxial and adaxial surface of leaves as well as...
Article
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em>Pistacia integerrima is a deciduous tree species belonging to the family Anacardiaceae. The plant possesses numerous phytochemicals of ethno-medicinal importance. In a routine mycological survey carried out from July 2013 to June 2014, leaves of P. integerrima were found infected with fungi causing rust and blight diseases. The morphological and...
Article
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A rust infection was recently observed on Grewia tiliifolia Vahl during an exploration of rust fungi in Himachal Pradesh, India, in October 2015. An examination identified the rust fungus as Puccinia tiliaefolia T. S. Ramakr. & Sundaram. This finding represents a new record for the northwestern Himalayas and the first finding of Puccinia tiliaefoli...
Article
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Gautam AK, Avasthi S. 2017. Short Communication: Some additions to powdery mildews (Erysiphales: Fungi) of Northwestern Himalayas. Nusantara Bioscience 9: 52-56. During the regular mycological collections, between October to December 2015 in NorthWest Himalayas of Himachal Pradesh, four powdery mildews parasitic on higher plants were gathered. Afte...
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This paper deals with the study of a leaf spot disease observed on Aloe vera leaves in various nurseries and botanical gardens during the routine surveys of two consecutive years of 2010 and 2011. The symptoms appeared in the form of circular to oval, brown to black, sunken spots on abaxial surface of leaves. The disease was observed only in Januar...
Article
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A new species of rust, Puccinia himachalensis, was recorded on Clematis grata from Himachal Pradesh, India. The species is compared morphologically with other Puccinia species described on the same plant host. A close resemblance was observed with P. wattiana but it differed in morphological characteristics including spore size and septal colourati...
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Camptomeris albiziae (Petch) E.W. Mason collected from leaves of Albizia lebek (Linn.) Willd., from Bilaspur, Himachal Pradesh, India, is described and illustrated. A literature survey revealed that this fungus has not been so far reported from North Western Himalaya and thus represents an extension of distribution of the fungus in India. Details o...
Article
A leaf spot disease caused by Phoma eupyrena Sacc. on Aloe vera was reported from Madhya Pradesh, India. Disease symptoms were observed as irregular to elongated, sunken lesion on both leaf surfaces which later turns creamish brown with maroon margin. The fungal colonies were whitish or light pale to dark grey colour. The pycnidia were glabrous and...
Article
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In rainy season of 2010 and 2011, leaves of Aloe vera were found infected with leaf spot disease. The leaves with typical symptoms of disease were collected from different nurseries and botanical gardens of Gwalior, Madhya Pradesh, India. Disease spots were observed on the adaxial surface and tip of leaves. Based on its morphological and cultural c...
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Cite as: Gautam AK & Avasthi S (2016) Mitteriella ziziphi (Ascomycota) on Zizyphus nummularia from the Himachal Pradesh and its distribution extension in India. Tropical Plant Research 3(2): 341–343] Mitteriella, an anamorphic fungus was proposed by Sydow & Mitter (1933). The genus is characterized by short, simple, macronematous, mononematous coni...
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A checklist of rust fungi belonging to the genus Puccinia was prepared for Himachal Pradesh, India. All Puccinia species published until 2014 are included in this list. A total of 80 species have been reported on 91 plant species belonging to 33 families. The family Poaceae supports the highest number of species (26 species) followed by Ranunculace...
Article
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Three black mildew fungi, namely Schiffnerula celastri, Sarcinella oreophila and Schiffnerula cryptostegiae were reported on Celastrus paniculatus, Carissa sp. and Cryptolepis buchanani respectively and are described and illustrated in detail in the present study. Although, these black mildews have previously been reported from various parts of Ind...
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A powdery mildew infection was observed on Xanthium strumarium during the routine mycological survey in district Mandi of Himachal Pradesh, India. Morphological and microscopic examinations revealed the identity of powdery mildew as Podosphaera xanthii. The white powdery mildew infection was found mixed with brownish intercellular pycnidia during m...
Article
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Typical symptoms of infection were observed on collar and roots of Aloe vera plants in various nurseries and botanical gardens of Gwalior, Madhya Pradesh, India, mainly during rainy and winter seasons of 2010 and 2011. Infected collar showed dark maroon–brown spots of variable size, while root rot infection appeared in the form of browning and deca...
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Avasthi S, GautamAK, Bhadauria R. 2015. Occurrence of leaf spot diseases on Aloe vera (L.) Burm.f. caused by Curvularia species from Madhya Pradesh, India. Biodiversitas 16: 79-83. During 2010-2011, occurrence of leaf spot diseases was observed on Aloevera plants grown in various nurseries of Gwalior, Madhya Pradesh, India. The typical disease symp...
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Scytalidium aeglicola a new species from India is described and illustrated. Fungus was collected from infected Aegle marmelos leaves. After comparison with different Scytalidium species available in literature, a close similarity was observed with S. lignicola, but differs in having larger size of arthroconidia and the conidia.
Article
Leaf spot disease of A. vera was observed in nurseries of Gwalior city afterthe post-rainy season. As the disease progressed, the tip of the leaf shrank, then dried and eventually broke. The causal agent was identified as Phoma betae A.B. Frank. This is the first report of leaf spot disease on Aloe vera caused by P. betae in India.
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Adhatoda vasica is a medicinally important perennial shrub used in traditional as well as modern systems of medicines to treat cough and cold, asthma, dysentery, rheumatic pain and many other disorders. A severe leaf spot disease was observed on A. vasica leaves collected from different regions of Bilaspur, Himachal Pradesh, India. The disease was...
Article
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Leaf spot symptoms were observed on the leaves of Boehravia diffusa L. plants from different regions of Bilaspur, Himachal Pradesh, India. The symptoms initially appeared as a small light-pale coloured, circular spots enlarge gradually and ultimately leading to drying of the leaves. The disease was found to be caused by a fungus. The fungus was cul...
Book
With the regular change in global environmental conditions, introduction of hybrid crops, changing agricultural methods may lead to develop new plant diseases and pathogens. This compilation of fungal diseases in plants will help us in understanding the major gaps in our knowledge and to develop suitable management strategies for restricting the fu...
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The present study describes the antifungal potential of fruit and powdered ingredients of triphala churna, i.e. Emblica officinalis (Garetn.) (Amla), Terminalia bellirica (Gaertn.) Roxb. (Baheda) and Terminalia chebula (Retz.) (Harada), collected from the market of Gwalior (M.P.), India. Water extracts of all the fruits and powdered samples were te...
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doi 10.5943/ppq/2/2/12 An infection was noticed on leaves of Sansevieria trifasciata in 2011 at Jiwaji University Campus, Madhya Pradesh, India. Morphological, cultural and microscopic characteristics resulted in identification of the causal agent as Colletotrichum sansevieriae. This is the first report of C. sansevieriae on S. trifasciata from Mad...
Article
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Aspergillus niger, a worldwide distributed member of ascomycotina, has been isolated from numerous habitats. A. niger is one of the fungi that has been labelled with the GRAS (generally recognized as safe) status from the US Food and Drug Administration. This dull or dark black looking fungus has several important products in fermentation industry....
Article
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A new disease of Aloe vera was found in Madhya Pradesh, India having reddish brown to brown colour lesions on leaf surface. The disease was found to be caused by a fungus. The fungus was exclusively isolated from the disease spots, and typical symptoms were reproduced after inoculation with the isolate. The causal fungus was identified as Colletotr...
Article
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Eight commonly used spices Syzygium aromaticum, Cinnamonum zeylanicum, Zingiber officinale, Murraya koenigii, Piper nigrum, Trachyspermum ammi, Allium sativum and Allium cepa were tested for in vitro antifungal activity on Aspergillus niger, a causative agent of different destructive disease. Out of eight plant materials used, five showed significa...
Article
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The present study explores the association of Aspergillus niger with stored raw and powdered ingredients of Triphala Churn, which is a 1:1:1 proportional combination of Emblica officinalis Gaertn. (Amla), Terminalia bellerica (Gaertn.) Roxb. (Baheda), and Terminalia chebula Retz. (Harada) respectively. Total 106 stored fruits and 68 powdered sample...
Article
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Leaf spot symptoms were observed on the leaves of Pedilanthus tithymaloides. The spots were dark red, circular shaped lesions on leaves. The fungus after cultural and microscopic examinations was identified as Colletotrichum gloeosporioides. To best our knowledge this is the first report from India showing that C. gloeosporioides causes leaf spot d...

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