Effect of bicarbonate on uptake and translocation of Fe-59 in two grapevine rootstocks differing in their resistance to Fe deficiency chlorosis
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 re...sults 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.
Keywords:
Vitis sp. / iron uptake / iron translocation / iron deficiency chlorosis / ferric reduction / bicarbonateSource:
VITIS, 2000, 39, 4, 145-149Publisher:
- Bundesanstalt Zuchtungs Forschung Kulturpflanzen, Siebeldingen
Collections
Institution/Community
Institut za multidisciplinarna istraživanjaTY - JOUR AU - Nikolic, Miroslav AU - Romheld, V AU - Merkt, N PY - 2000 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/49 AB - 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. PB - Bundesanstalt Zuchtungs Forschung Kulturpflanzen, Siebeldingen T2 - VITIS T1 - Effect of bicarbonate on uptake and translocation of Fe-59 in two grapevine rootstocks differing in their resistance to Fe deficiency chlorosis EP - 149 IS - 4 SP - 145 VL - 39 UR - https://hdl.handle.net/21.15107/rcub_rimsi_49 ER -
@article{ author = "Nikolic, Miroslav and Romheld, V and Merkt, N", year = "2000", 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.", publisher = "Bundesanstalt Zuchtungs Forschung Kulturpflanzen, Siebeldingen", journal = "VITIS", title = "Effect of bicarbonate on uptake and translocation of Fe-59 in two grapevine rootstocks differing in their resistance to Fe deficiency chlorosis", pages = "149-145", number = "4", volume = "39", url = "https://hdl.handle.net/21.15107/rcub_rimsi_49" }
Nikolic, M., Romheld, V.,& Merkt, N.. (2000). Effect of bicarbonate on uptake and translocation of Fe-59 in two grapevine rootstocks differing in their resistance to Fe deficiency chlorosis. in VITIS Bundesanstalt Zuchtungs Forschung Kulturpflanzen, Siebeldingen., 39(4), 145-149. https://hdl.handle.net/21.15107/rcub_rimsi_49
Nikolic M, Romheld V, Merkt N. Effect of bicarbonate on uptake and translocation of Fe-59 in two grapevine rootstocks differing in their resistance to Fe deficiency chlorosis. in VITIS. 2000;39(4):145-149. https://hdl.handle.net/21.15107/rcub_rimsi_49 .
Nikolic, Miroslav, Romheld, V, Merkt, N, "Effect of bicarbonate on uptake and translocation of Fe-59 in two grapevine rootstocks differing in their resistance to Fe deficiency chlorosis" in VITIS, 39, no. 4 (2000):145-149, https://hdl.handle.net/21.15107/rcub_rimsi_49 .