Strobilurus tenacellus
| Strobilurus tenacellus | |
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Научная классификация 
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| Домен: | Эукариота |
| Королевство: | Грибы |
| Разделение: | Basidiomycota |
| Сорт: | Агарикомицеты |
| Заказ: | Агарические |
| Семья: | Physalacriaceae |
| Род: | Стробилур |
| Разновидность: | С. Тенаций
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| Биномиальное название | |
| Strobilurus tenacellus | |
| Synonyms[6] | |
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Strobilurus tenacellus , широко известный как Cinecone Cap , является видом агарического гриба в семействе Physalacriaceae . Он встречается в Азии и Европе, где он растет на упавших конусах сосны . и еловых деревьев Фруктовые тела ( грибы ) маленькие, с красноватых диаметрами выпуклых до плоских от до коричневато -коричневато база. Характерной микроскопической особенностью гриба является острая, тонкостенная цистидия , обнаруженная на стипе, жабрах и кепке. Грибы, иногда описываемые как съедобные , слишком малы, чтобы быть кулинарными интересами. Гриб выпускает соединения, называемые стробилуринами , которые подавляют рост и развитие других грибов. Производные эти соединения используются в качестве важного класса сельскохозяйственных фунгицидов .
Таксономия
[ редактировать ]Этот вид был впервые описан как агарикус Tenacellus Christian Hendrik Resoon в своих наблюдениях 1796 года Mycologicae . [ 1 ] В своей таксономической истории он был перенесен в роду Коллибии в Полом Куммером 1803 году, Марасмиуса Жюля Фавра в 1939 году, и псевдогиатула Жоржа Метрода в 1952 году. Певица Рольфа передала его недавно резко описываемый род Стробилур в 1962 году. Название, которым он в настоящее время известен. [7]
The specific epithet tenacellus is a diminutive form of the Latin word tenax, meaning "tough".[8] Its British Mycological Society-recommended common name is the "pinecone cap".[9] English botanist James Edward Smith called it the "dark fir-cone Agaric" in his 1836 work The English Flora.[10]
Description
[edit]
The cap is initially convex before flattening out, sometimes retaining a small central papilla, and sometimes developing a central depression; the cap diameter reaches 5–15 mm (0.2–0.6 in). The smooth cap is hygrophanous (i.e., it changes colour as it loses or absorbs moisture), and has shallow radial grooves extending about halfway up the cap. Its colour is reddish to brownish, and is often paler in the center than the margin; when dry, the colour fades to greyish. The greyish-white gills have a free to deeply emarginate (notched) attachment to the cap. They are somewhat crowded together, numbering 20–25 gills with 1 to 7 tiers of interspersed lamellulae (short gills that do not extend fully from the cap margin to the stipe). The cylindrical stipe measures 4–7.5 cm (1.6–3.0 in) long by 0.5–2 mm thick, and has at its base a root-like pseudorrhiza that extends into the substrate. The upper stipe is yellowish brown, while lower it is dark orange-brown to reddish brown. The flesh has no odour and usually has a bitter taste.[11] While the fruit bodies are sometimes described as are edible,[12][13] they are too small to be of culinary interest.[14]
The spore print is white.[15] Spores are roughly elliptical to tear-shaped, with dimensions of 5.0–7.5 by 2.4–4.0 μm. The basidia (spore-bearing cells) are four-spored, and measure 20–40 by 7–11 μm. Cheilocystidia (cystidia on the gill edge) are thin walled, plentiful, spindle-shaped to somewhat flask-shaped with a sharp tip, and measure 30–70 by 3–10 μm. The pleurocystidia (on the gill face) are similar in shape and size to the cheilocystidia, although usually not quite as numerous. The cap cuticle is made of a hymeniderm of club-shaped to somewhat spherical cells measuring 8–25 by 7–20 μm, mixed with flask-shaped pileocystidia (cystidia on the cap) that are 20–45 by 5–11 μm. Hyphae lack clamp connections.[11]
Similar species
[edit]Strobilurus esculentus and S. stephanocystis are similar in appearance to S. tenacellus. S. esculentus mushrooms have thin, sharp cap margins and only fruit on fallen spruce cones.[16] S. stephanocystis has a yellow-brown to reddish-yellow cap that is not hygrophanous.[11] Baeospora myosura is another small agaric that grows on pine and spruce cones, but it fruits in autumn.[15]
Habitat and distribution
[edit]Strobilurus tenacellus is a saprobic wood-rotting fungus. It fruits singly or in small groups on fallen and often partially buried cones of Scots pine (Pinus sylvestris), European black pine (Pinus nigra) and sometimes spruce (Picea) in coniferous and mixed forests.[11] It is found in Europe[17] and Asia, where it has been recorded in Japan[17] and Jordan.[18] In Europe, the fungus usually fruits from March to June.[11] Its occurrence is occasional.[15]
Bioactive compounds
[edit]
Two cyathane-like diterpenoids, (12S)-11α,14α-epoxy-13α,14β,15-trihydroxycyath-3-ene and (12R)-11α,14α-epoxy-13α,14β,15-trihydroxycyath-3-ene, have been isolated and identified from the liquid culture of the fungus. These compounds inhibit the growth of certain tumor cells when grown in vitro.[19]
Using a standard laboratory method to determine antimicrobial susceptibility, methanol-based extracts of Strobilurus tenacellus fruit bodies were shown in a 2000 study to have low antibacterial activity against the bacterium Bacillus subtilis, and low to moderate activity against the fungi Candida albicans and Aspergillus fumigatus.[20] The fungus produces the natural antibiotic strobilurin A, which was reported as a novel compound from this species in 1977;[21] other strobilurins have since been found in other basidiomycete wood-rotting fungi,[22] like Porcelain Mushroom for example. Strobilurin A is thought to be derived biosynthetically from the amino acid L-phenylalanine. In nature, the fungus secretes the chemical to prevent invasion by other fungi that challenge its nutrient source. It works by blocking electron transfer in the mitochondria, stopping respiration by binding to the ubihydroquinone oxidation center of the bc1 complex. This prevents the competing fungus from creating its own energy and inhibiting its growth at the earliest stages of the life cycle, the spore germination stage. The fungus is resistant to its own chemical because its ubihydroquinone has three amino acid residues that prevent the strobilurins from binding.[23] Because of their sensitivity to light, and high vapor pressures that causes them to rapidly disappear when applied to the surface of a leaf, chemically unmodified strobilurins are not generally useful as fungicides for agricultural use.[24] The strobilurin-derived compound azoxystrobin, first made commercially available in 1996, was designed to overcome these limitations. It is the world's biggest-selling fungicide.[25] Other commercial fungicides developed from the strobilurins include kresoxim-methyl, picoxystrobin, fluoxastrobin, pyraclostrobin and trifloxystrobin.[26][27]
References
[edit]- ^ Jump up to: a b Persoon CH (1796). Observationes Mycologicae [Mycological Observations] (PDF) (in Latin). Vol. 1. Leipzig: Wolf. p. 50. Archived from the original (PDF) on 2016-03-03. Retrieved 2013-01-04.
- ^ Kummer P. (1871). Der Führer in die Pilzkunde [Mushroom-hunter's Guide] (in German). Zerbst: C. Luppe. p. 114.
- ^ Karsten P. (1879). "Rysslands, Finlands och den Skandinaviska halföns Hattsvampar. Förra Delen: Skifsvampar" [Mushrooms of Russia, Finland and the Scandinavian peninsula. Final part: Agarics]. Bidrag till Kännedom av Finlands Natur och Folk (in Finnish). 32: 154.
- ^ Karsten PA (1889). "Kritisk öfversigt af Finlands Basidsvampar (Basidiomycetes; Gastero- & Hymenomycetes)" [Critical overview of Finland's Basidiomycetes]. Bidrag till Kännedom av Finlands Natur och Folk (in Swedish). 48: 103.
- ^ Métrod G. (1952). "Les Collybies" [The collybias]. Revue de Mycologie (in French). 17: 60–93.
- ^ "Strobilurus tenacellus (Pers.) Singer 1962". MycoBank. International Mycological Association. Retrieved 2013-01-04.
- ^ Singer R. (1962). "New genera of fungi. VIII". Persoonia. 2 (3): 407–15.
- ^ Stevenson J. (1886). British Fungi (Hymenomycetes). Vol. 1. Agaricus–Bolbitius. Edinburgh and London: William Blackwood and Sons. p. 110.
- ^ "List of recommended English Names for Fungi in the UK" (PDF). British Mycological Society. 2003. Archived from the original (PDF) on 2011-07-16.
- ^ Smith JE (1836). The English Flora. Vol. 5. II. London: Longman, Rees, Orme, Brown, Green & Longman. p. 50.
- ^ Jump up to: a b c d e Noordeloos ME, Kuyper TW, Vellinga EC (1999). Flora Agaricina Neerlandica. Vol. 4. Boca Raton: CRC Press. p. 180. ISBN 978-90-5410-493-3.
- ^ Kukovinets OS, Abdullin MI, Zainullin RA, Kunakova RV, Zaikov GE (2008). Chemical and Physical Methods for Protecting Biopolymers Against Pests. New York: Nova Publishers. p. 84. ISBN 978-1-60456-331-3.
- ^ Anke T, Steglich W (1999). "Strobilurins and oudemansins". In Grabley S, Thiericke R (eds.). Drug Discovery from Nature. Berlin: Springer. p. 320. ISBN 978-3-54064-844-4.
- ^ Phillip R. (2006). Mushrooms. London: Pan Macmillan. p. 125. ISBN 978-0-330-44237-4.
- ^ Jump up to: a b c Sterry P, Hughes B (2009). Complete Guide to British Mushrooms & Toadstools. London: HarperCollins. p. 150. ISBN 978-0-00-723224-6.
- ^ Laessoe T. (2002). Mushrooms. Smithsonian Handbooks (2nd ed.). London: Dorling Kindersley Adult. p. 133. ISBN 978-0-7894-8986-9.
- ^ Jump up to: a b Redhead SE (1980). "The genus Strobilurus in Canada with notes on extralimital species". Canadian Journal of Botany. 58: 68–83. doi:10.1139/b80-009.
- ^ Natour RM (2006). Wild Mushrooms of Jordan. Amman: Higher Council of Science and Technology. p. 104.
- ^ Shiono Y, Hiramatsu F, Murayama T, Koseki T, Funakoshi T (2008). "Two cyathane-type diterpenoids from the liquid culture of Strobilurus tenacellus". Chemistry & Biodiversity. 5 (9): 1811–6. doi:10.1002/cbdv.200890170. PMID 18816532. S2CID 205544805.
- ^ Suay I; Arenal F; Asensio FJ; Basilio A; Cabello MA; Díez MT; Juan B García; del Val AG; Gorrochategui J; Hernández P; Peláez F; Vicente MF (2000). "Screening of basidiomycetes for antimicrobial activities". Antonie van Leeuwenhoek. 78 (2): 129–39. doi:10.1023/A:1026552024021. PMID 11204765. S2CID 23654559.
- ^ Anke T, Oberwinkler F, Steglich W, Schramm G (1977). "Strobilurins – new antifungal antibiotics from Basidiomycete Strobilurus tenacellus (Pers. ex Fr.) Sing". Journal of Antibiotics. 30 (10): 806–10. doi:10.7164/antibiotics.30.806. PMID 563391.
- ^ Bartlett DW, Clough JM, Godwin JR, Hall AA, Hamer M, Parr-Dobrzanski B (2004). "The strobilurin fungicides". Pest Management Science. 58 (7): 649–62. doi:10.1002/ps.520. PMID 12146165.
- ^ Hofrichter M. (2010). Industrial Applications. Berlin, Heidelberg: Springer. p. 137. ISBN 978-3-642-11457-1.
- ^ Kim BS, Hwang BK (2004). "Biofungicides". In Arora DK (ed.). Fungal Biotechnology in Agricultural, Food, and Environmental Applications. New York: CRC Press. p. 125. ISBN 978-0-8247-4770-1.
- ^ Reddy, P.Parvatha (2013). "Chapter 12: Strobilurin fungicides". Recent advances in crop protection. New Delhi: Springer. pp. 185–200. doi:10.1007/978-81-322-0723-8. ISBN 978-81-322-0722-1. S2CID 13212055.
- ^ "Pesticide Properties DataBase". University of Hertfordshire.
- ^ Buczacki S. (2001). "Berkeley's legacy – who cares?". Mycological Research. 105 (11): 1283–94. doi:10.1017/S0953756201005081.
Внешние ссылки
[ редактировать ]- Strobilurus tenacellus в индексных грибах
- Грибки итальянские несколько изображений и микроскопии