Seed biopriming with cyanobacterial extracts as an eco- friendly strategy to control damping off caused by Pythium ultimum in seedbeds
This work highlights the ability of various cyanobacterial extracts from Anabaena spp., Tolypothrix spp., Nostoc or Trichormus, among others genera, to control the incidence of damping-off caused by Pythium ultimum in cucumber seedlings. Protocols applied aimed at the preliminary characterizatio...
| Main Authors: | , , , , , |
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| Format: | info:eu-repo/semantics/article |
| Language: | English |
| Published: |
2022
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| Online Access: | http://hdl.handle.net/10835/13640 |
| _version_ | 1789406592442040320 |
|---|---|
| author | Toribio, A.J. Jurado, M.M. Suárez-Estrella, F. López, M.J. López-González, J.A. Moreno, J. |
| author_facet | Toribio, A.J. Jurado, M.M. Suárez-Estrella, F. López, M.J. López-González, J.A. Moreno, J. |
| author_sort | Toribio, A.J. |
| collection | DSpace |
| description | This work highlights the ability of various cyanobacterial
extracts from Anabaena spp., Tolypothrix spp., Nostoc or
Trichormus, among others genera, to control the incidence of
damping-off caused by Pythium ultimum in cucumber seedlings.
Protocols applied aimed at the preliminary characterization of the
cyanobacterial collection were very useful for predicting their
phytotoxic, phytostimulating and biopesticidal capacity. First, the
phytostimulatory or phytotoxic potential of a collection of 31
sonicated cyanobacterial extracts was analyzed by calculating
the germination index in watercress seeds and the increase or
loss of seedling weight. Likewise, the collection was
characterized according to its ability to inhibit the growth of P.
ultimum by dual culture bioassays and detached-leaf test.
Finally, after selecting the most effective extracts, a preventive
damping-off bioassay was performed based on cucumber seed
biopriming. The strain SAB-M465 showed to be the most efficient
strain against the in vitro growth of P. ultimum, while SAB-B912
was more discreet in this regard, but proved to be the most
effective as a germination stimulator. Seed biopriming strategy
with sonicated extracts of cyanobacteria revealed a remarkable
promoter effect in the early stages of plant development,
although only SAB-M465 was positioned as an effective control
agent against damping-off caused by P. ultimum in cucumber
seedbeds. |
| format | info:eu-repo/semantics/article |
| id | oai:repositorio.ual.es:10835-13640 |
| institution | Universidad de Cuenca |
| language | English |
| publishDate | 2022 |
| record_format | dspace |
| spelling | oai:repositorio.ual.es:10835-136402023-04-12T19:35:19Z Seed biopriming with cyanobacterial extracts as an eco- friendly strategy to control damping off caused by Pythium ultimum in seedbeds Toribio, A.J. Jurado, M.M. Suárez-Estrella, F. López, M.J. López-González, J.A. Moreno, J. This work highlights the ability of various cyanobacterial extracts from Anabaena spp., Tolypothrix spp., Nostoc or Trichormus, among others genera, to control the incidence of damping-off caused by Pythium ultimum in cucumber seedlings. Protocols applied aimed at the preliminary characterization of the cyanobacterial collection were very useful for predicting their phytotoxic, phytostimulating and biopesticidal capacity. First, the phytostimulatory or phytotoxic potential of a collection of 31 sonicated cyanobacterial extracts was analyzed by calculating the germination index in watercress seeds and the increase or loss of seedling weight. Likewise, the collection was characterized according to its ability to inhibit the growth of P. ultimum by dual culture bioassays and detached-leaf test. Finally, after selecting the most effective extracts, a preventive damping-off bioassay was performed based on cucumber seed biopriming. The strain SAB-M465 showed to be the most efficient strain against the in vitro growth of P. ultimum, while SAB-B912 was more discreet in this regard, but proved to be the most effective as a germination stimulator. Seed biopriming strategy with sonicated extracts of cyanobacteria revealed a remarkable promoter effect in the early stages of plant development, although only SAB-M465 was positioned as an effective control agent against damping-off caused by P. ultimum in cucumber seedbeds. 2022-04-25T08:08:24Z 2022-04-25T08:08:24Z 2022-01-26 info:eu-repo/semantics/article http://hdl.handle.net/10835/13640 en http://eu-repo/grantAgreement/ES/MINECO/2016SABANA/ES/Sustainable%20Algae%20Biorefinery%20for%20Agriculture%20aNd%20Aquaculture/SABANA/ Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
| spellingShingle | Toribio, A.J. Jurado, M.M. Suárez-Estrella, F. López, M.J. López-González, J.A. Moreno, J. Seed biopriming with cyanobacterial extracts as an eco- friendly strategy to control damping off caused by Pythium ultimum in seedbeds |
| title | Seed biopriming with cyanobacterial extracts as an eco- friendly strategy to control damping off caused by Pythium ultimum in seedbeds |
| title_full | Seed biopriming with cyanobacterial extracts as an eco- friendly strategy to control damping off caused by Pythium ultimum in seedbeds |
| title_fullStr | Seed biopriming with cyanobacterial extracts as an eco- friendly strategy to control damping off caused by Pythium ultimum in seedbeds |
| title_full_unstemmed | Seed biopriming with cyanobacterial extracts as an eco- friendly strategy to control damping off caused by Pythium ultimum in seedbeds |
| title_short | Seed biopriming with cyanobacterial extracts as an eco- friendly strategy to control damping off caused by Pythium ultimum in seedbeds |
| title_sort | seed biopriming with cyanobacterial extracts as an eco- friendly strategy to control damping off caused by pythium ultimum in seedbeds |
| url | http://hdl.handle.net/10835/13640 |
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