The memory of iron stress in strawberry plants

Gama, Florinda; Saavedra, Teresa; Silva, José Paulo da; Miguel, Maria Graça; Varennes, Amarílis de; Correia, Paulo de Barros; Pestana, Maribela

doi:10.1016/j.plaphy.2016.03.019

Cited by 22 publications

(14 citation statements)

References 42 publications

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“…FCR activity in plants growing under Fe deficiency is generally induced [71], but some studies report a decreasing activity of this enzyme in soybean plants growing under restricted Fe supply [72,73]. In fact, there are studies evidencing that FCR activity is species and cultivar dependent [67,74], which may explain our contrasting results.…”

Section: Depending On the Legume Species Eco 2 Stimulates Photosynthesis But In Combination With Fe Deficiency This Effect Is Lostcontrasting

confidence: 55%

Short Term Elevated CO2 Interacts with Iron Deficiency, Further Repressing Growth, Photosynthesis and Mineral Accumulation in Soybean (Glycine max L.) and Common Bean (Phaseolus vulgaris L.)

Deuchande¹,

Soares²,

Nunes³

et al. 2021

Environments

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Elevated CO2 (eCO2) has been reported to cause mineral losses in several important food crops such as soybean (Glycine max L.) and common bean (Phaseolus vulgaris L.). In addition, more than 30% of the world’s arable land is calcareous, leading to iron (Fe) deficiency chlorosis and lower Fe levels in plant tissues. We hypothesize that there will be combinatorial effects of eCO2 and Fe deficiency on the mineral dynamics of these crops at a morphological, biochemical and physiological level. To test this hypothesis, plants were grown hydroponically under Fe sufficiency (20 μM Fe-EDDHA) or deficiency (0 μM Fe-EDDHA) at ambient CO2 (aCO2, 400 ppm) or eCO2 (800 ppm). Plants of both species exposed to eCO2 and Fe deficiency showed the lowest biomass accumulation and the lowest root: shoot ratio. Soybean at eCO2 had significantly higher chlorophyll levels (81%, p < 0.0001) and common bean had significantly higher photosynthetic rates (60%, p < 0.05) but only under Fe sufficiency. In addition, eCO2 increased ferric chelate reductase acivity (FCR) in Fe-sufficient soybean by 4-fold (p < 0.1) and in Fe-deficient common bean plants by 10-fold (p < 0.0001). In common bean, an interactive effect of both environmental factors was observed, resulting in the lowest root Fe levels. The lowering of Fe accumulation in both crops under eCO2 may be linked to the low root citrate accumulation in these plants when grown with unrestricted Fe supply. No changes were observed for malate in soybean, but in common bean, shoot levels were significantly lower under Fe deficiency (77%, p < 0.05) and Fe sufficiency (98%, p < 0.001). These results suggest that the mechanisms involved in reduced Fe accumulation caused by eCO2 and Fe deficiency may not be independent, and an interaction of these factors may lead to further reduced Fe levels.

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Section: Depending On the Legume Species Eco 2 Stimulates Photosynthesis But In Combination With Fe Deficiency This Effect Is Lostcontrasting

confidence: 55%

Short Term Elevated CO2 Interacts with Iron Deficiency, Further Repressing Growth, Photosynthesis and Mineral Accumulation in Soybean (Glycine max L.) and Common Bean (Phaseolus vulgaris L.)

Deuchande¹,

Soares²,

Nunes³

et al. 2021

Environments

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“…Chlorophyll contents increased with Fe application and the SPAD values were generally around 50 under sufficient Fe supply. Gama et al (2016) reported similar for SPAD values under Fe deficiency in strawberry. Pestana et al (2012a) compared the responses of carob (Ceratonia siliqua L.) and three-foil lemon (Poncirus trifoliata (L.) Raf) tree rootstocks against Fe deficiency under hydroponic conditions with different Fe levels.…”

Section: Discussionmentioning

confidence: 56%

“…Cultivated strawberries, Fragaria × ananassa Duch., are among the most sensitive species to Fe-deficiency (Álvarez-Fernández et al 2006;Pestana et al 2011;Alkan Torun et al 2013, 2014. Several studies have reported varied response of large number of strawberry cultivars to Fe deficiency in different growth mediums (Alkan Torun et al 2013, 2014Kafkas et al 2007;Gama et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Screening of wild strawberry germplasm for iron-deficiency tolerance under hydroponic conditions

Torun¹,

Erdem²,

Serçe³

et al. 2021

Tarım Bilimleri Dergisi

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Cultivated strawberry has been developed from hybridization between Fragaria chiloensis and F. virginiana. The progenitor species exhibit significant genetic diversity. Growth attributes of progenitor species and their responses to several stress factors have been studied. However, iron-deficiency tolerance (FeDT) of different species have merely been tested under hydroponic conditions. This study evaluated FeDT of 23 genotypes belonging to super-seed collection under hydroponic conditions. Two genotypes (one Fe-deficiency tolerant and one sensitive) were selected from screening experiment and their physiological and morphological mechanisms playing role in FeDT were determined. Plant parameters associated with FeDT, i.e., pH of the growth medium, root Fe reductase activity, total and active Fe concentration of shoot were recorded. The Fe-efficiency of strawberry subspecies varied between 51% and 98%. Fe efficiency values also varied among subspecies. AukeLake and RCP37 belonging to F. chiloensis were highly resistant and sensitive to Fe-deficiency, respectively based on Fe efficiency values. A highly significant relationship was observed between Fe concentration and FeDT of the genotypes. Acidification of nutrient solution and root Fe reductase activity were closely related to high shoot iron concentration. Our findings indicated existence of a close relationship between root uptake and root to shoot translocation of Fe, which ultimately contribute greatly to FeDT among tested strawberry genotypes.

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“…It resulted in more or less stable Fe:Mn ratio, which implies that the studied species are adapted to tolerate increased Mn uptake as a side effect of Fe scavenging. It is worth noting that low Fe:Mn ratio is known to promote chlorosis ( Gama et al, 2016 ; Zamboni et al, 2017 ; Wala et al, 2020 ). However, the studied species of Centaurea are able to operate without signs of chlorosis when this parameter is even lower than in chlorosis-resistant calcicole plant species from xerothermic grasslands, e.g ., Salvia verticillata L. or Veronica teucrium L. ( Wala et al, 2020 ).…”

Section: Discussionmentioning

confidence: 99%

Reactions of two xeric-congeneric species of Centaurea (Asteraceae) to soils with different pH values and iron availability

Wala

Kołodziejek

Mazur

et al. 2021

PeerJ

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Centaurea scabiosa L. and C. stoebe Tausch are known to co-exist naturally in two extremely different types of open dry habitats in the temperate zone, alkaline xerothermic grasslands and acidic dry grasslands. However, knowledge about their preferences to edaphic conditions, including soil acidity (pH), and iron (Fe) availability is scarce. Therefore, experimental comparison of soil requirements (acidic Podzol vs alkaline Rendzina) of these species was carried out. The study was designed as a pot experiment and conducted under field conditions. Fe availability was increased by application of Fe-HBED. Reactions of plants to edaphic conditions were determined using growth measurements, leaf morphometric measurements, chlorosis scoring, chlorophyll content and chlorophyll a fluorescence (OJIP) quantification as well as determination of element content (Ca, Mg, Fe, Mn, Zn and Cu). Growth and leaf morphometrical traits of the studied congeneric species were affected similarly by the soil type and differently by the chelate treatment. Increased availability of Fe in Rendzina contrasted the species, as treatment with 25 µmol Fe-HBED kg−1 soil promoted growth only in C. stoebe. Both species turned out to be resistant to Fe-dependent chlorosis which was also reflected in only minor changes in chlorophyll a fluorescence parameters. Both species showed relatively low nutritional demands. Surprisingly, Fe-HBED did not stimulate Fe acquisition in the studied species, nor its translocation along the root:shoot axis. Furthermore, contrary to expectations, C. scabiosa took up less Fe from the acidic than alkaline soil. C. scabiosa not only absorbed more Ca and Zn but also translocated greater amounts of these elements to shoots than C. stoebe. Both species acquired more Mg on Podzol than on Rendzina which suggests adaptation allowing avoidance of aluminum (Al) toxicity on acidic soils. Overall, it seems that C. scabiosa prefers alkaline soils, whilst C. stoebe prefers acidic ones.

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The memory of iron stress in strawberry plants

Cited by 22 publications

References 42 publications

Short Term Elevated CO2 Interacts with Iron Deficiency, Further Repressing Growth, Photosynthesis and Mineral Accumulation in Soybean (Glycine max L.) and Common Bean (Phaseolus vulgaris L.)

Short Term Elevated CO2 Interacts with Iron Deficiency, Further Repressing Growth, Photosynthesis and Mineral Accumulation in Soybean (Glycine max L.) and Common Bean (Phaseolus vulgaris L.)

Screening of wild strawberry germplasm for iron-deficiency tolerance under hydroponic conditions

Reactions of two xeric-congeneric species of Centaurea (Asteraceae) to soils with different pH values and iron availability

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