Some aspects of the phytotoxic action of fusaric acid on primary Ricinus roots
Fusaric acid, at a concentration of 1mM induced at pH 5.5 an early hyperpolarisation was followed by a marked depolarisation of membrane potential difference. During this time increased electrolyte leakage from the primary Ricinus roots was determined. At higher pH values (6.5 and 8) the depolarisat...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Czech Academy of Agricultural Sciences
2004-09-01
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| Series: | Plant, Soil and Environment |
| Subjects: | |
| Online Access: | https://pse.agriculturejournals.cz/artkey/pse-200409-0003_some-aspects-of-the-phytotoxic-action-of-fusaric-acid-on-primary-ricinus-roots.php |
| _version_ | 1797898398868701184 |
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| author | J. Pavlovkin I. Mistrík M. Prokop |
| author_facet | J. Pavlovkin I. Mistrík M. Prokop |
| author_sort | J. Pavlovkin |
| collection | DOAJ |
| description | Fusaric acid, at a concentration of 1mM induced at pH 5.5 an early hyperpolarisation was followed by a marked depolarisation of membrane potential difference. During this time increased electrolyte leakage from the primary Ricinus roots was determined. At higher pH values (6.5 and 8) the depolarisation caused by fusaric acid was immediate without hyperpolarisation observed at pH 5.5. Simultaneous exposure of the roots to P-ATPase activator fusicoccin and fusaric acid (pH 6.5) diminished the hyperpolarising effect of fusicoccin. The present results suggest that the dissociated form of fusaric acid does directly affect particular cell targets (plasmalemma, mitochondria) and viability of root cells decreased with the time of exposure and concentration of fusaric acid. |
| first_indexed | 2024-04-10T08:12:45Z |
| format | Article |
| id | doaj.art-303eda44462e4513a49ebd3ef67b0b8a |
| institution | Directory Open Access Journal |
| issn | 1214-1178 1805-9368 |
| language | English |
| last_indexed | 2024-04-10T08:12:45Z |
| publishDate | 2004-09-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Plant, Soil and Environment |
| spelling | doaj.art-303eda44462e4513a49ebd3ef67b0b8a2023-02-23T03:44:59ZengCzech Academy of Agricultural SciencesPlant, Soil and Environment1214-11781805-93682004-09-0150939740110.17221/4050-PSEpse-200409-0003Some aspects of the phytotoxic action of fusaric acid on primary Ricinus rootsJ. Pavlovkin0I. Mistrík1M. Prokop2Institute of Botany, Slovak Academy of Sciences, Bratislava, SlovakiaInstitute of Botany, Slovak Academy of Sciences, Bratislava, SlovakiaInstitute of Botany, Slovak Academy of Sciences, Bratislava, SlovakiaFusaric acid, at a concentration of 1mM induced at pH 5.5 an early hyperpolarisation was followed by a marked depolarisation of membrane potential difference. During this time increased electrolyte leakage from the primary Ricinus roots was determined. At higher pH values (6.5 and 8) the depolarisation caused by fusaric acid was immediate without hyperpolarisation observed at pH 5.5. Simultaneous exposure of the roots to P-ATPase activator fusicoccin and fusaric acid (pH 6.5) diminished the hyperpolarising effect of fusicoccin. The present results suggest that the dissociated form of fusaric acid does directly affect particular cell targets (plasmalemma, mitochondria) and viability of root cells decreased with the time of exposure and concentration of fusaric acid.https://pse.agriculturejournals.cz/artkey/pse-200409-0003_some-aspects-of-the-phytotoxic-action-of-fusaric-acid-on-primary-ricinus-roots.phpfusaric acidmembrane potentialelectrolyte leakagericinus roots |
| spellingShingle | J. Pavlovkin I. Mistrík M. Prokop Some aspects of the phytotoxic action of fusaric acid on primary Ricinus roots Plant, Soil and Environment fusaric acid membrane potential electrolyte leakage ricinus roots |
| title | Some aspects of the phytotoxic action of fusaric acid on primary Ricinus roots |
| title_full | Some aspects of the phytotoxic action of fusaric acid on primary Ricinus roots |
| title_fullStr | Some aspects of the phytotoxic action of fusaric acid on primary Ricinus roots |
| title_full_unstemmed | Some aspects of the phytotoxic action of fusaric acid on primary Ricinus roots |
| title_short | Some aspects of the phytotoxic action of fusaric acid on primary Ricinus roots |
| title_sort | some aspects of the phytotoxic action of fusaric acid on primary ricinus roots |
| topic | fusaric acid membrane potential electrolyte leakage ricinus roots |
| url | https://pse.agriculturejournals.cz/artkey/pse-200409-0003_some-aspects-of-the-phytotoxic-action-of-fusaric-acid-on-primary-ricinus-roots.php |
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