Search results for "fusarium"
showing 6 items of 286 documents
Hydrolytic enzyme activity of Paenibacillus sp. strain B2 and effects of the antagonistic bacterium on cell integrity of two soil-borne pathogenic fu…
2000
Paenibacillus sp. strain B2, isolated from the mycorrhizosphere of Sorghum bicolor and having an antagonistic activity towards soil-borne fungal pathogens, possessed extracellular cellulolytic, proteolytic, chitinolytic and pectinolytic enzyme activities. The eventual role of these lytic enzymes in cellular interactions between Paenibacillus sp. strain B2 and Phytophthora parasitica and Fusariumoxysporum was investigated by electron microscopy and molecular cytology. Electron microscopic observations showed that the presence of Paenibacillus sp. strain B2 resulted in disorganisation of cell walls and/or cell contents of P. parasitica and F. oxysporum. However, when P. parasitica was treated…
Fusariose du cyclamen : vers un outil de détection précoce
2016
SPEIPM; Fusariose du cyclamen : vers un outil de détection précoce
Sensitivity of Fusarium solani isolated from asparagus on essential oils
2016
Influence of harvesting time on composition of the essential oil of Thymus capitatus (L.) Hoffmanns. & Link. growing wild in northern Sicily and its …
2019
One of the main factors affecting historical art crafts material is the biodeterioration performed by bacteria and fungi, in archives, museums or private collections. Several microorganisms cause degradation to the natural organic material such as fibers, woods, and dyes as well as to stone objects. These alterations produce deterioration of physical, chemical, mechanical and esthetic properties. Consequently, in this publication, we report the high antibacterial and antifungal activities of wild thyme essential oil, oil that can be used as an alternative natural tool in the fight against microorganisms affecting historical art crafts.Essential oil of the Thymus capitatus growing wild in no…
Vējauzas un parastās gaiļsāres sēklu ūdens ekstraktu ietekme uz Fusarium spp. sēņu augšanu
2021
Nezāļu sēklu uzkrāšanās augsnē būtiski ietekmē nezāļu augu skaitu aramzemē, tāpēc augsnes sēklu bankas samazināšana ir viens no veidiem, kā ilgtspējīgi kontrolēt nezāļu populācijas. Mikroorganismu darbība ir svarīgs faktors, kurš ietekmē sēklu spēju saglabāt dzīvotspēju augsnē un mikroorganismu izmantošana var palīdzēt kontrolēt nezāļu augsnes sēklu banku videi draudzīgā veidā. Taču sēklām piemīt aizsardzības mehānismi, kas samazina mikroorganismu ietekmi un palīdz sēklām ilgāk saglabāties augsnes sēklu bankā. Zināms, ka fenolu dabas savienojumi un flavonoīdi, kuri uzkrājas sēklu struktūrās, var inhibēt sēņu attīstību. Darba mērķis bija salīdzināt dažādu populāciju sēklu potenciālo spēju in…
Chemical Composition of the Essential Oil of Bupleurum Fontanesii (Apiaceae) Growing Wild in Sicily and its Activity on Microorganisms Affecting Hist…
2016
Hydrodistillation of the flowers (BpFl) of and fruits (BpFr) of Bupleurum fontanesii Guss. ex Caruel gave two oils that were analyzed by GC and GC-MS. The main components were α-elemol (16.7%), caryophyllene oxide (16.4%) and heptacosane (15.9%) in BpFl, and spathulenol (16.8%), caryophylladienol I (13.2%) and α-elemol (12.8%) in BpFr. A good antimicrobial activity against several microorganisms, including Bacillus subtilis, Staphylococcus aureus, Fusarium oxysporum and Aspergillus niger, all infesting historical art craft, was also determined.