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List Of Foliage Plant Diseases (Polypodiaceae)
This is a list of diseases of foliage plants belonging to the family Polypodiaceae Polypodiaceae is a family of ferns. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), the family includes around 65 genera and an estimated 1,650 species and is placed in the order Polypodiales, suborder Polypodiineae. A broader .... Plant Species Bacterial diseases Fungal diseases Nematodes, parasitic ReferencesCommon Names of Diseases, The American Phytopathological Society {{DEFAULTSORT:List Of Foliage Plant Diseases (Polypodiaceae) Foliage plant (Polypodiaceae) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polypodiaceae
Polypodiaceae is a family of ferns. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), the family includes around 65 genera and an estimated 1,650 species and is placed in the order Polypodiales, suborder Polypodiineae. A broader circumscription has also been used, in which the family includes other families kept separate in PPG I. Nearly all species are epiphytes, but some are terrestrial. Description Stems of Polypodiaceae range from erect to long-creeping. The fronds are entire, pinnatifid, or variously forked or pinnate. The petioles lack stipules. The scaly rhizomes are generally creeping in nature. Polypodiaceae species are found in wet climates, most commonly in rain forests. In temperate zones, most species tend to be epiphytic or epipetric. Notable examples of ferns in this family include the resurrection fern (''Pleopeltis polypodioides'') and the golden serpent fern (''Phlebodium aureum''). Taxonomy Two distinct circumscriptions of the family are in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asplenium Nidus
:''See bird's-nest fern for other plants with this common name.'' ''Asplenium nidus'' is an epiphytic species of fern in the family Aspleniaceae, native to tropical southeastern Asia, eastern Australia, Hawaii (''ʻēkaha'' in Hawaiian), Polynesia,MacDonald, Elvin "The World Book of House Plants" pp.264 Popular Books Christmas Island, India, and eastern Africa. It is known by the common names bird's-nest fern (a name shared by some other aspleniums) or simply nest fern. Description ''Asplenium nidus'' forms large simple fronds visually similar to banana leaves, with the fronds growing to long and broad, with occasional individuals up to 6.6 feet (two meters) in length by up to two feet (61 centimeters) width They are light green, often crinkled, with a black midrib, and exhibit circinate vernation. Spores develop in sori on the underside of the fronds. These sori form long rows extending out from the midrib on the back of the outer part of the lamina (frond). The fronds roll ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nephrolepis Exaltata
''Nephrolepis exaltata'', known as the sword fern or Boston fern, is a species of fern in the family Lomariopsidaceae (sometimes treated in the families Davalliaceae or Oleandraceae, or in its own family, Nephrolepidaceae). It is native to the Americas. This evergreen plant can reach as high as , and in extreme cases up to . It is also known as the Boston swordfern, wild Boston fern, Boston Blue Bell Fern, tuber ladder fern, or fishbone fern. Description The fronds of ''Nephrolepis exaltata'' are long and broad, with alternate pinnae (the small "leaflets" on either side of the midrib), each pinna being long. The pinnae are generally deltoid, as seen in the adjacent picture. The pinnate vein pattern is also visible on these highly compound leaves. The edges appear slightly serrate. The plant can grow both terrestrially and as an epiphyte, linear to lanceolate and glandular. The rachis bears monochrome sprout soups. The leaflets are entire, undestroyed and oblong-lanceolate up ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platycerium
''Platycerium'' is a genus of about 18 fern species in the polypod family, Polypodiaceae. Ferns in this genus are widely known as staghorn or elkhorn ferns due to their uniquely shaped fronds. This genus is epiphytic and is native to tropical and temperate areas of South America, Africa, Southeast Asia, Australia, and New Guinea. Description ''Platycerium'' sporophytes (adult plants) have tufted roots, growing from a short rhizome, and bear two types of fronds - basal and fertile fronds. Basal fronds are sterile, shield- or kidney-shaped, and laminate against the tree, to protect the fern's roots from damage and desiccation. In some ''Platycerium'' species, the top margin of these fronds will grow into an open crown of lobes; catching rainwater, falling forest litter, bird/animal droppings, and even the occasional fallen baby bird or deceased animal, these plants build up their own “compost” system of nutrition over many years. Fertile fronds bear spores on their undersurfac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pteris
''Pteris'' (brake) is a genus of about 300 species of ferns in the subfamily Pteridoideae of the family Pteridaceae. They are native to tropical and subtropical regions, southward to New Zealand, Australia, and South Africa, north to Japan and North America. 78 species (35 endemic) are found in China. Some species of Pteris have considerable economic and ecological value, such as Pteris multifida, Pteris ensiformis, Pteris vittata can be used for ornamental purposes; as a hyperaccumulator, Pteris multifida and Pteris vittata can be used to control soil pollution. Many of them have linear frond segments, and some have sub-palmate division. Like other members of the Pteridaceae, the frond margin is reflexed over the marginal sori. The outermost layer is the single layered epidermis without stomata. The cortex is differentiated into outer and inner cortical region. The vascular cylinder is an amphiphloic siphonostele. The term "brake", used for members of this genus, is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudomonas Cichorii
''Pseudomonas cichorii'' is a Gram-negative soil bacterium that is pathogenic to plants. It has a wide host range, and can have an important economical impact on lettuce, celery and chrysanthemum crops. ''P. cichorii'' was first isolated on endives (''Cichorium endivia''), from which it derives its name. It produces 6-aminopenicillanic acid. Based on 16S rRNA analysis, ''P. cichorii'' has been placed in the ''P. syringae'' group. Hosts and symptoms ''Pseudomonas cichorii'' is non-host specific as it does not infect just one host. Its host range includes lettuce, pepper, celery, coffee, wheat, basil and several other host plants. Symptoms of the causal agent vary depending on the host and the area of the plant infected. In general, ''pseudomonas cichorii'' is seen to cause leaf blighting and spotting. The first appearance of symptoms involves a water soaked lesion that develops at the edge of the leaf, midvein or randomly across the leaf These lesions progressively turn black ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudomonas Asplenii
''Pseudomonas asplenii'' is a Gram-negative soil bacterium that causes bacterial leaf blight of the bird's-nest fern (''Asplenium nidus :''See bird's-nest fern for other plants with this common name.'' ''Asplenium nidus'' is an epiphytic species of fern in the family Aspleniaceae, native to tropical southeastern Asia, eastern Australia, Hawaii (''ʻēkaha'' in Hawaiian), Polynes ...''), from which it derives its name. References External links Type strain of ''Pseudomonas asplenii'' at Bac''Dive'' - the Bacterial Diversity Metadatabase Pseudomonadales Bacterial plant pathogens and diseases Ornamental plant pathogens and diseases Bacteria described in 1947 {{Pseudomonadales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Burkholderia Gladioli
''Burkholderia gladioli'' is a species of aerobic gram-negative rod-shaped bacteria that causes disease in both humans and plants. It can also live in symbiosis with plants and fungi and is found in soil, water, the rhizosphere, and in many animals. It was formerly known as ''Pseudomonas marginata''. ''Burkholderia gladioli'' synthesizes several inhibitory substances, among them gladiolin, bongkrek acid, enacyloxin, and toxoflavin. Those molecules might participate in antagonistic interactions with other microbes in the environment where they grow. One pathovariety, growing on coconut pulp, produces the respiratory toxin bongkrek acid which can cause fatal poisoning in humans. Nomenclature The members of the genus ''Burkholderia'' were formerly classified as ''Pseudomonas'', but ''Burkholderia'' was one of the seven genera that arose when ''Pseudomonas'' was divided based on rRNA differences. ''Burkholderia gladioli'' is closely related to, and often mistaken for, a member o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Botrytis Cinerea
''Botrytis cinerea'' is a necrotrophic fungus that affects many plant species, although its most notable hosts may be wine grapes. In viticulture, it is commonly known as "botrytis bunch rot"; in horticulture, it is usually called "grey mould" or "gray mold". The fungus gives rise to two different kinds of infections on grapes. The first, grey rot, is the result of consistently wet or humid conditions, and typically results in the loss of the affected bunches. The second, noble rot, occurs when drier conditions follow wetter, and can result in distinctive sweet dessert wines, such as Sauternes (wine), Sauternes or the Aszú of Tokaji/Grasă de Cotnari. The species name ''Botrytis cinerea'' is derived from the Latin for "grapes like ashes"; although poetic, the "grapes" refers to the bunching of the fungal spores on their Conidium, conidiophores, and "ashes" just refers to the greyish colour of the spores ''en masse''. The fungus is usually referred to by its anamorph (asexual form ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhizoctonia Solani
''Rhizoctonia solani'' is a species of fungus in the order Cantharellales. Basidiocarps (fruit bodies) are thin, effused, and web-like, but the fungus is more typically encountered in its anamorphic state, as hyphae and sclerotia. The name ''Rhizoctonia solani'' is currently applied to a complex of related species that await further research. In its wide sense, ''Rhizoctonia solani'' is a facultative plant pathogen with a wide host range and worldwide distribution. It causes various plant diseases such as root rot, damping off, and wire stem. It can also form mycorrhizal associations with orchids. Taxonomy In 1858, the German plant pathologist Julius Kühn observed and described a fungus on diseased potato tubers and named it ''Rhizoctonia solani'', the species epithet referring to ''Solanum tuberosum'' (potato). The disease caused was well known before the discovery and description of the fungus. In 1956, Dutch mycologist M.A. Donk published the new name ''Thanatephorus cucumer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foliar Nematodes
Foliar nematodes are plant parasitic roundworms in the genus '' Aphelenchoides''. The three most economically important species are ''Aphelenchoides fragariae'', ''A. ritzemabosi'', and ''A. besseyi''. Foliar nematodes are becoming a widespread and serious problem for the ornamental and nursery industries. ''A. fragariae'' causes damage on hundreds of different plants including chrysanthemum, begonia, gloxinia, African violet, cyclamen, and a wide variety of bedding plants and ferns, causing brown to black, vein-delimited lesions on leaf tissue, defoliation, and possible stunting of plants. Biology While many plant parasitic nematodes feed on plant roots, foliar nematodes live and reproduce inside the leaves of plants. The nematodes live within the epidermis and mesophyll tissues of leaves, which causes necrosis and collapse of the palisade and spongy parenchyma tissues. Inside the leaves of plants female nematodes lay one or two eggs a day, with each female producing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphelenchoides Fragariae
Strawberry foliar nematode, or strawberry crimp nematode, is a disease caused by ''Aphelenchoides fragariae'', a plant pathogenic nematode. It is common in strawberries and ornamental plants and can greatly affect plant yield and appearance, resulting in a loss of millions of dollars of revenue. Symptoms used to diagnose the disease are angular, water soaked lesions and necrotic blotches. ''Aphelenchoides fragariae'' is the nematode pathogen that causes the disease. Its biological cycle includes four life stages, three of which are juvenile. The nematode can undergo multiple life cycles in one growing season when favorable conditions are present. The crowns, runners, foliage, and new buds of the plant via stylet penetration or through the stomata can be infected. The best management practices for this disease are sanitation, prevention of induction of the pathogen to the environment, and planting clean seed or starter plants. Importance Foliar nematodes are an important pla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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