Phytophthora cinnamomi, also known as cinnamon fungus, is a soil-borne water mould that produces an infection which causes a condition in plants variously called "dieback", "root rot", or, "ink disease".
Phomopsis cane and leaf spot occurs wherever grapes are grown. Phomopsis cane and leaf spot is more severe in grape-growing regions characterized by a humid temperate climate through the growing season. Crop losses up to 30% have been reported to be caused by Phomopsis cane and leaf spot.
Botryosphaeria stevensii is a fungal plant pathogen that causes cankers on several tree species including apple and juniper as well as causing cankers on grape vines. It causes branch dieback, possibly affecting a large portion of the tree canopy, and if severe it can kill entire plants.
Lasiodiplodia theobromae is a plant pathogen with a very wide host range. It causes rotting and dieback in most species it infects. It is a common post harvest fungus disease of citrus known as stem-end rot. It is a cause of bot canker of grapevine. It also infects Biancaea sappan, a species of flowering tree also known as Sappanwood.
Diaporthe eres is a fungal plant pathogen, which is the type species of genus ''Diaporthe''. It causes canker disease in a wide variety of hosts. This species has a long history, having been described many times under various synonyms, for instance, the fungus was illustrated by James Sowerby in 1803 under the name Sphaeria ciliaris, attributed to Bulliard. The name D. eres has been proposed for conservation in order to avoid bothersome name changes due to priority.
Diaporthe helianthi is a fungal pathogen that causes Phomopsis stem canker of sunflowers. In sunflowers, Phomopsis helianthi is the causative agent behind stem canker. Its primary symptom is the production of large canker lesions on the stems of sunflower plants. These lesions can eventually lead to lodging and plant death. This disease has been shown to be particularly devastating in southern and eastern regions of Europe, although it can also be found in the United States and Australia. While cultural control practices are the primary method of controlling for Stem Canker, there have been a few resistant cultivars developed in regions of Europe where the disease is most severe.
Moniliophthora perniciosa is a fungus that causes "witches' broom disease" (WBD) of the cocoa tree T. cacao. This pathogen is currently limited to South America, Panama and the Caribbean, and is perhaps one of the best-known cocoa diseases, thought to have co-evolved with cocoa in its centre of origin.
Diaporthe phaseolorum var. sojae is a plant pathogen infecting soybean and peanut.
Diaporthales is an order of sac fungi.
Forest dieback is a condition in trees or woody plants in which peripheral parts are killed, either by pathogens, parasites or conditions like acid rain, drought, and more. These episodes can have disastrous consequences such as reduced resiliency of the ecosystem, disappearing important symbiotic relationships and thresholds. Some tipping points for major climate change forecast in the next century are directly related to forest diebacks.
Phomopsis is a genus of ascomycete fungi in the family Diaporthaceae. It was previously in the Valsaceae family.
Diaporthe toxica is a lupin endophyte and occasionally a plant pathogen. The fungus produces secondary metabolites that result in toxicosis of animals such as lupinosis of sheep when infected lupins are ingested by animals. The fungus produces mycotoxins called phomopsins, which cause liver damage. Lupinosis has been incorrectly attributed to Diaporthe woodii but has now been shown to be a mycotoxicosis caused by the recently discovered (1994) teleomorphic fungus Diaporthe toxica. The discovery and naming of this fungus concludes over a century of investigation into the cause of lupinosis since the first major outbreak in Germany in 1872. The infection process and life cycle in both resistant and susceptible lupins has been fully elucidated. This is the first record of resistance in a latent infection. Following this research rapid molecular breeding techniques have been developed leading to the production of many resistant lupin varieties. Lupinosis is no longer considered a disease of major importance to livestock producers in Western Australia. Lupins can now become part of the human diet.
Kauri dieback is a forest dieback disease of the native kauri trees of New Zealand that is suspected to be caused by the oomycete Phytophthora agathidicida. Symptoms can include root rot and associated rot in a collar around the base of the tree, bleeding resin, yellowing and chlorosis of the leaves followed by extensive defoliation, and finally, death.
Phomopsis azadirachtae is a fungus, a species of the genus Phomopsis. It has been identified as the fungus responsible for dieback in Azadirachta indica (neem) in India. The species was first identified and described by Sateesh et al in 1997.
Hymenoscyphus fraxineus is an ascomycete fungus that causes ash dieback, a chronic fungal disease of ash trees in Europe characterised by leaf loss and crown dieback in infected trees. The fungus was first scientifically described in 2006 under the name Chalara fraxinea. Four years later it was discovered that Chalara fraxinea is the asexual (anamorphic) stage of a fungus that was subsequently named Hymenoscyphus pseudoalbidus and then renamed as Hymenoscyphus fraxineus.
Theobroma bicolor, known commonly as the mocambo tree, jaguar tree, balamte, or pataxte, among various other common names, is a tree in the genus Theobroma, which also contains the better-known Theobroma cacao. It is found in Central and South America, including stretches of the Amazon rainforest in Brazil, Colombia, Ecuador, and Peru.
Phomopsisblight of juniper is a foliar disease discovered in 1917 caused by the fungal pathogen Phomopsis juniperovora. The fungus infects new growth of juniper trees or shrubs, i.e. the seedlings or young shoots of mature trees. Infection begins with the germination of asexual conidia, borne from pycnidia, on susceptible tissue, the mycelia gradually move inwards down the branch, and into the main stem. Management strategies mainly include removing and destroying diseased tissue and limiting the presence of moisture on plants. Junipers become resistant to infection as they mature and the young yellow shoots turn dark green. Preventive strategies include planting only resistant varieties and spraying new growth with fungicide until plants have matured.
Dorothy Mary Cayley (1874–1955) was a mycologist who discovered in 1927 that "Tulip breaking" is due to a virus.
