Invasiivsed seenpatogeenid männil ning nende levik
| dc.contributor.advisor | Drenkhan, Rein (juhendaja) | |
| dc.contributor.advisor | Adamson, Kalev (juhendaja) | |
| dc.contributor.author | Reedi, Marta-Maria | |
| dc.date.accessioned | 2016-05-19T09:04:56Z | |
| dc.date.available | 2016-05-19T09:04:56Z | |
| dc.date.defensed | 2016-05-31 | |
| dc.date.issued | 2016 | |
| dc.description.abstract | Diplodia sapinea, Dothistroma septosporum ja Lecanosticta acicola on invasiivsed seenpatogeenid, mis tuvastati Eestis selle sajandi alguses. Nende monitooring ja uurimine on oluline, sest pole teada, kuidas nad käituvad meie kliima tingimustes ja kas nad on harilikule männile sama ohtlikud kui eksoot-männi liikidele. Käesoleva töö eesmärgiks oli invasiivsete seenhaiguste seire ja levik Eestis, uute võimalike peremeestaimede otsing ning seenpatogeenide seire Tallinna Botaanikaaiaaias (TBA). D. sapinea ja D. septosporum’i seire jaoks koguti proove üle kogu Eesti ning ka Põhja-Lätist, kokku 57-lt proovialalt kokku 109 proovi. Proovid mikroskopeeriti, et tuvastada okastelt, võrsetelt, käbidelt haigustekitajad. Vajadusel proovid sekveneeriti haigusetekitaja täpseks tuvastamiseks. D. sapinea tuvastati kaheksalt proovialalt ja TBA’st. Eestis tervikuna leiti D. sapinea harilikult (Pinus sylvestris) ja mustalt männilt (P. nigra) ning TBA’s valgekooreliselt männilt (P. leucodermis). Eestit hõlmava seire tulemusena tuvastati punavöötaudi tekitajat D. septosporum 31-st proovialast ning peremeestaimedeks olid: harilik mänd, ühelt alalt kollane mänd (P. ponderosa) ja üks leid TBA’s siberi-seedermännilt (P. sibirica). Seire käigus tuvastati Diplodia sapinea esinemist võrreldes 2014. aastaga vähem, D. septosporum oli levinud jätkuvalt üle Eesti. Pruunvöötaudi tekitajat (Lecanosticta aciclola) käesolevas töös harilikult männilt ega eksootmänniliikidelt ei tuvastatud | est |
| dc.description.abstract | Diplodia sapinea, Dothistroma septosporum and Lecanosticta acicola are invasive fungal pathogens which were recorded in Estonia in the beginning of this century. Their monitoring and investigation is important, because it is not known how they behave in our climate and environment, and whether they are the same dangerous to the sole native Scots pine as they are to exotic pine species. The aim of this work was to monitor invasive fungal pathogens and their distribution on native and exotic pine species. 109 conifer samples were collected from 57 sample plots in Estonia and North-Latvia. Samples were microscopically examined to detect pathogens on the needles, shoots and cones. Unclear samples were molecularly analyzed and sequenced. D. sapinea was identified in eight sampled stands in whole Estonia and one in TBG. In monitoring plots D. sapinea were mainly found on Scots pine (Pinus sylvestris), Austrian pine (P. nigra) and in Tallinn Botanic Garden (TBG) on Bosnian pine (P. leucodermis). D. septosporum was detected in the 31 sampling areas, in Estonia, mainly on Scots pine, and in one locality on ponderosa pine (P. ponderosa). One finding of D. septosporum was made in TBG on Siberian pine (P. sibirica). Compared to the situation with 2014 Diplodia sapinea was detected less in 2015. D. septosporum was distributed more in the western and northern part of Estonia. Lecanosticta aciclola wasn’t found on Scots pine. | eng |
| dc.identifier.uri | http://hdl.handle.net/10492/2575 | |
| dc.subject | bakalaureusetööd | est |
| dc.subject | võõrliigid | est |
| dc.subject | Diplodia sapinea | |
| dc.subject | Dothistroma septosporum | |
| dc.subject | Lecanosticta aciola | |
| dc.subject | Tallinna Botaanikaaed | est |
| dc.subject | mänd | est |
| dc.title | Invasiivsed seenpatogeenid männil ning nende levik | est |
| dc.title.alternative | Distribution of invasive fungal pathogens on pines | eng |
| dc.type | Bachelor Thesis |
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