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Effect of bicarbonate on uptake and translocation of Fe-59 in two grapevine rootstocks differing in their resistance to Fe deficiency chlorosis
dc.creator | Nikolic, Miroslav | |
dc.creator | Romheld, V | |
dc.creator | Merkt, N | |
dc.date.accessioned | 2022-04-05T14:01:08Z | |
dc.date.available | 2022-04-05T14:01:08Z | |
dc.date.issued | 2000 | |
dc.identifier.issn | 0042-7500 | |
dc.identifier.uri | http://rimsi.imsi.bg.ac.rs/handle/123456789/49 | |
dc.description.abstract | In order to study the effect of high bicarbonate concentration in the root medium on root Fe-III reduction, Fe uptake and its translocation to the leaves, two rootstocks (Vitis riparia Michx., susceptible, and 41 B (Vitis vinifera L. cv. Chasselas x Vitis berlandieri Planch.), resistant to Fe deficiency chlorosis) were pre-cultivated in nutrient solutions with high and low Fe supply. After three weeks of preculture at low Fe, chlorosis symptoms occurred in both, Fe-resistant and Fe-susceptible genotypes. The Fe-III reducing capacity by roots was enhanced at Fe deficiency in both genotypes, which was consistent with the increase of subsequent root uptake and translocation rates of Fe-59. In the presence of bicarbonate in the solutions the Fe-III reducing capacity, Fe-59 uptake and translocation rate decreased in both genotypes precultured with low re supply. The Fe-59 uptake and translocation rate, however, were significantly higher in the Fe chlorosis-resistant rootstock 41 B. These results clearly indicate that bicarbonate-induced Fe chlorosis in grapevine rootstocks is obviously caused by an inhibition of Fe uptake and translocation due to an inhibition of Fe-III reduction by root cells. The fact that these processes were less inhibited in the chlorosis-resistant rootstock hints to genotypical differences in Fe acquisition by roots at high bicarbonate levels. These differences might be used in breeding programs to identify Fe chlorosis-resistant rootstocks. | en |
dc.publisher | Bundesanstalt Zuchtungs Forschung Kulturpflanzen, Siebeldingen | |
dc.rights | restrictedAccess | |
dc.source | VITIS | |
dc.subject | Vitis sp. | en |
dc.subject | iron uptake | en |
dc.subject | iron translocation | en |
dc.subject | iron deficiency chlorosis | en |
dc.subject | ferric reduction | en |
dc.subject | bicarbonate | en |
dc.title | Effect of bicarbonate on uptake and translocation of Fe-59 in two grapevine rootstocks differing in their resistance to Fe deficiency chlorosis | en |
dc.type | article | |
dc.rights.license | ARR | |
dc.citation.epage | 149 | |
dc.citation.issue | 4 | |
dc.citation.other | 39(4): 145-149 | |
dc.citation.rank | M22 | |
dc.citation.spage | 145 | |
dc.citation.volume | 39 | |
dc.identifier.rcub | https://hdl.handle.net/21.15107/rcub_rimsi_49 | |
dc.identifier.wos | 000166645900002 | |
dc.type.version | publishedVersion |
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