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Secchi F, Bevilacqua I, Agliassa C, Maghrebi M, Cavalletto S, Morabito C, Lembo S, Vigani G. Alkaline soil primes the recovery from drought in Populus nigra plants through physiological and chemical adjustments. Plant Physiol Biochem 2023; 201:107838. [PMID: 37364510 DOI: 10.1016/j.plaphy.2023.107838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 05/04/2023] [Accepted: 06/13/2023] [Indexed: 06/28/2023]
Abstract
Perennial plants are frequently exposed to severe and prolonged drought, and when the balance between water transport and transpirational demand is compromised trees are in danger of embolism formation. To maintain the physiological balance, plants can rely on mechanisms to quickly recover the lost xylem hydraulic capacity and reduce the prolonged impact on photosynthetic activity upon rehydration. Among factors helpful for plants to sustain acclimation and adaptation responses to drought and promote recovery, maintaining an optimal nutritional status is crucial for plant survival. This study aimed to investigate the physiological and biochemical responses under drought and recovery of Populus nigra plants grown in soil with impaired nutrient bioavailability obtained by adding calcium oxide (CaO) to the substrate. Although the CaO treatment did not affect plant growth, in well-watered conditions, treated poplars displayed an impaired inorganic ions profile in tissues. Under drought, although CaO-treated and untreated plants showed similar physiological responses, the former closed the stomata earlier. During water stress relief, the CaO-treated poplars exhibited a faster stomatal opening and a higher capacity to restore xylem hydraulic conductivity compared to not-treated plants, probably due to the higher osmolyte accumulation during drought. The content of some inorganic ions (e.g, Ca2+ and Cl-) was also higher in the xylem sap collected from stressed CaO-treated plants, thus contributing to increase the osmotic gradient necessary for the recovery. Taken together, our results suggest that CaO treatment promotes a faster and more efficient plant recovery after drought due to a modulation of ions homeostasis.
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Affiliation(s)
- Francesca Secchi
- Department of Agriculture, Forest and Food Sciences, University of Turin, Grugliasco, Italy.
| | - Ivan Bevilacqua
- Department of Agriculture, Forest and Food Sciences, University of Turin, Grugliasco, Italy
| | - Chiara Agliassa
- Department of Agriculture, Forest and Food Sciences, University of Turin, Grugliasco, Italy
| | - Moez Maghrebi
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
| | - Silvia Cavalletto
- Department of Agriculture, Forest and Food Sciences, University of Turin, Grugliasco, Italy
| | - Cristina Morabito
- Department of Agriculture, Forest and Food Sciences, University of Turin, Grugliasco, Italy
| | - Silvia Lembo
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
| | - Gianpiero Vigani
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy.
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Chialva M, Patono DL, de Souza LP, Novero M, Vercellino S, Maghrebi M, Morgante M, Lovisolo C, Vigani G, Fernie A, Fiorilli V, Lanfranco L, Bonfante P. The mycorrhizal root-shoot axis elicits Coffea arabica growth under low phosphate conditions. New Phytol 2023. [PMID: 37167003 DOI: 10.1111/nph.18946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 04/03/2023] [Indexed: 05/12/2023]
Abstract
Coffee is one of the most traded commodities world-wide. As with 70% of land plants, coffee is associated with arbuscular mycorrhizal (AM) fungi, but the molecular bases of this interaction are unknown. We studied the mycorrhizal phenotype of two commercially important Coffea arabica cultivars ('Typica National' and 'Catimor Amarillo'), upon Funnelliformis mosseae colonisation grown under phosphorus limitation, using an integrated functional approach based on multi-omics, physiology and biochemistry. The two cultivars revealed a strong biomass increase upon mycorrhization, even at low level of fungal colonisation, improving photosynthetic efficiency and plant nutrition. The more important iconic markers of AM symbiosis were activated: We detected two gene copies of AM-inducible phosphate (Pt4), ammonium (AM2) and nitrate (NPF4.5) transporters, which were identified as belonging to the C. arabica parental species (C. canephora and C. eugenioides) with both copies being upregulated. Transcriptomics data were confirmed by ions and metabolomics analyses, which highlighted an increased amount of glucose, fructose and flavonoid glycosides. In conclusion, both coffee cultivars revealed a high responsiveness to the AM fungus along their root-shoot axis, showing a clear-cut re-organisation of the major metabolic pathways, which involve nutrient acquisition, carbon fixation, and primary and secondary metabolism.
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Affiliation(s)
- Matteo Chialva
- Department of Life Sciences and Systems Biology, University of Torino, Viale Mattioli 25, 10125, Torino, Italy
| | - Davide Lucien Patono
- Department of Agricultural, Forest and Food Sciences, University of Torino, Largo P. Braccini 2, 10095, Grugliasco, Italy
| | - Leonardo Perez de Souza
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, Am Mühlenberg 1, 14476, Potsdam-Golm, Germany
| | - Mara Novero
- Department of Life Sciences and Systems Biology, University of Torino, Viale Mattioli 25, 10125, Torino, Italy
| | - Sara Vercellino
- Department of Life Sciences and Systems Biology, University of Torino, Viale Mattioli 25, 10125, Torino, Italy
| | - Moez Maghrebi
- Department of Life Sciences and Systems Biology, University of Torino, Viale Mattioli 25, 10125, Torino, Italy
| | - Michele Morgante
- Istituto di Genomica Applicata, Via J. Linussio 51, 33100, Udine, Italy
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Via delle Scienze 206, 33100, Udine, Italy
| | - Claudio Lovisolo
- Department of Agricultural, Forest and Food Sciences, University of Torino, Largo P. Braccini 2, 10095, Grugliasco, Italy
| | - Gianpiero Vigani
- Department of Life Sciences and Systems Biology, University of Torino, Viale Mattioli 25, 10125, Torino, Italy
| | - Alisdair Fernie
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, Am Mühlenberg 1, 14476, Potsdam-Golm, Germany
| | - Valentina Fiorilli
- Department of Life Sciences and Systems Biology, University of Torino, Viale Mattioli 25, 10125, Torino, Italy
| | - Luisa Lanfranco
- Department of Life Sciences and Systems Biology, University of Torino, Viale Mattioli 25, 10125, Torino, Italy
| | - Paola Bonfante
- Department of Life Sciences and Systems Biology, University of Torino, Viale Mattioli 25, 10125, Torino, Italy
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Fiorilli V, Maghrebi M, Novero M, Votta C, Mazzarella T, Buffoni B, Astolfi S, Vigani G. Arbuscular Mycorrhizal Symbiosis Differentially Affects the Nutritional Status of Two Durum Wheat Genotypes under Drought Conditions. Plants (Basel) 2022; 11:plants11060804. [PMID: 35336686 PMCID: PMC8954065 DOI: 10.3390/plants11060804] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 02/23/2022] [Accepted: 03/14/2022] [Indexed: 05/17/2023]
Abstract
Durum wheat is one of the most important agricultural crops, currently providing 18% of the daily intake of calories and 20% of daily protein intake for humans. However, being wheat that is cultivated in arid and semiarid areas, its productivity is threatened by drought stress, which is being exacerbated by climate change. Therefore, the identification of drought tolerant wheat genotypes is critical for increasing grain yield and also improving the capability of crops to uptake and assimilate nutrients, which are seriously affected by drought. This work aimed to determine the effect of arbuscular mycorrhizal fungi (AMF) on plant growth under normal and limited water availability in two durum wheat genotypes (Svevo and Etrusco). Furthermore, we investigated how the plant nutritional status responds to drought stress. We found that the response of Svevo and Etrusco to drought stress was differentially affected by AMF. Interestingly, we revealed that AMF positively affected sulfur homeostasis under drought conditions, mainly in the Svevo cultivar. The results provide a valuable indication that the identification of drought tolerant plants cannot ignore their nutrient use efficiency or the impact of other biotic soil components (i.e., AMF).
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Affiliation(s)
- Valentina Fiorilli
- Department of Life Sciences and Systems Biology, Università degli Studi di Torino, 10124 Torino, Italy; (V.F.); (M.M.); (M.N.); (C.V.); (T.M.); (B.B.)
| | - Moez Maghrebi
- Department of Life Sciences and Systems Biology, Università degli Studi di Torino, 10124 Torino, Italy; (V.F.); (M.M.); (M.N.); (C.V.); (T.M.); (B.B.)
| | - Mara Novero
- Department of Life Sciences and Systems Biology, Università degli Studi di Torino, 10124 Torino, Italy; (V.F.); (M.M.); (M.N.); (C.V.); (T.M.); (B.B.)
| | - Cristina Votta
- Department of Life Sciences and Systems Biology, Università degli Studi di Torino, 10124 Torino, Italy; (V.F.); (M.M.); (M.N.); (C.V.); (T.M.); (B.B.)
| | - Teresa Mazzarella
- Department of Life Sciences and Systems Biology, Università degli Studi di Torino, 10124 Torino, Italy; (V.F.); (M.M.); (M.N.); (C.V.); (T.M.); (B.B.)
| | - Beatrice Buffoni
- Department of Life Sciences and Systems Biology, Università degli Studi di Torino, 10124 Torino, Italy; (V.F.); (M.M.); (M.N.); (C.V.); (T.M.); (B.B.)
| | - Stefania Astolfi
- Department of Agricultural and Forestry Sciences (DAFNE), University of Tuscia, 01100 Viterbo, Italy;
| | - Gianpiero Vigani
- Department of Life Sciences and Systems Biology, Università degli Studi di Torino, 10124 Torino, Italy; (V.F.); (M.M.); (M.N.); (C.V.); (T.M.); (B.B.)
- Correspondence: ; Tel.: +39-0116706360
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Cavallaro V, Maghrebi M, Caschetto M, Sacchi GA, Nocito FF. Sulfur Stable Isotope Discrimination in Rice: A Sulfur Isotope Mass Balance Study. Front Plant Sci 2022; 13:837517. [PMID: 35360342 PMCID: PMC8960986 DOI: 10.3389/fpls.2022.837517] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 02/11/2022] [Indexed: 06/14/2023]
Abstract
The use of sulfur (S) stable isotopes to study S metabolism in plants is still limited by the relatively small number of studies. It is generally accepted that less S stable isotope discrimination occurs during sulfate (SO4 2-) uptake. However, S metabolism and allocation are expected to produce separations of S stable isotopes among the different plant S pools and organs. In this study, we measured the S isotope composition of the main S pools of rice plants grown under different SO4 2- availabilities in appropriate closed and open hydroponic-plant systems. The main results indicate that fractionation against 34S occurred during SO4 2- uptake. Fractionation was dependent on the amount of residual SO4 2- in the solution, showing a biphasic behavior related to the relative expression of two SO4 2- transporter genes (OsSULTR1;1 and OsSULTR1;2) in the roots. S isotope separations among S pools and organs were also observed as the result of substantial S isotope fractionations and mixing effects occurring during SO4 2- assimilation and plant S partitioning. Since the S stable isotope separations conserve the memory of the physiological and metabolic activities that determined them, we here underline the potential of the 32S/34S analysis for the detailed characterization of the metabolic and molecular processes involved in plant S nutrition and homeostasis.
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Affiliation(s)
- Viviana Cavallaro
- Dipartimento di Scienze Agrarie e Ambientali—Produzione, Territorio, Agroenergia, Università degli Studi di Milano, Milan, Italy
| | - Moez Maghrebi
- Dipartimento di Scienze Agrarie e Ambientali—Produzione, Territorio, Agroenergia, Università degli Studi di Milano, Milan, Italy
- Dipartimento di Scienze della Vita e Biologia dei Sistemi, Università degli Studi di Torino, Turin, Italy
| | - Mariachiara Caschetto
- Dipartimento di Scienze Agrarie e Ambientali—Produzione, Territorio, Agroenergia, Università degli Studi di Milano, Milan, Italy
- Dipartimento di Scienze dell’Ambiente e della Terra, Università degli Studi di Milano-Bicocca, Milan, Italy
| | - Gian Attilio Sacchi
- Dipartimento di Scienze Agrarie e Ambientali—Produzione, Territorio, Agroenergia, Università degli Studi di Milano, Milan, Italy
| | - Fabio Francesco Nocito
- Dipartimento di Scienze Agrarie e Ambientali—Produzione, Territorio, Agroenergia, Università degli Studi di Milano, Milan, Italy
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Ferri A, Lancilli C, Maghrebi M, Lucchini G, Sacchi GA, Nocito FF. The Sulfate Supply Maximizing Arabidopsis Shoot Growth Is Higher under Long- than Short-Term Exposure to Cadmium. Front Plant Sci 2017; 8:854. [PMID: 28588602 PMCID: PMC5439006 DOI: 10.3389/fpls.2017.00854] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 05/08/2017] [Indexed: 05/23/2023]
Abstract
The processes involved in cadmium detoxification in plants deeply affect sulfate uptake and thiol homeostasis and generate increases in the plant nutritional request for sulfur. Here, we present an analysis of the dependence of Arabidopsis growth on the concentration of sulfate in the growing medium with the aim of providing evidence on how plants optimize growth at a given sulfate availability. Results revealed that short-term (72 h) exposure to a broad range of Cd concentrations (0.1, 1, and 10 μM) inhibited plant growth but did not produce any significant effects on the growth pattern of both shoots and roots in relation to the external sulfate. Conversely, long-term (22 days) exposure to 0.1 μM Cd significantly changed the pattern of fresh weight accumulation of the shoots in relation to the external sulfate, without affecting that of the roots, although their growth was severely inhibited by Cd. Moreover, under long-term exposure to Cd, increasing the sulfate external concentration up to the critical value progressively reduced the inhibitory effects exerted by Cd on shoot growth, indicating the existence of sulfate-dependent adaptive responses protecting the shoot tissues against Cd injury. Transcriptional induction of the high-affinity sulfate transporter genes (SULTR1; 1 and SULTR1; 2) involved in sulfate uptake by roots was a common adaptive response to both short- and long-term exposure to Cd. Such a response was closely related to the total amount of non-protein thiols accumulated by a single plant under short-term exposure to Cd, but did not showed any clear relation with thiols under long-term exposure to Cd. In this last condition, Cd exposure did not change the level of non-protein thiols per plant and thus did not alter the nutritional need for sulfur. In conclusion, our results indicate that long term-exposure to Cd, although it induces sulfate uptake, decreases the capacity of the Arabidopsis roots to efficiently absorb the sulfate ions available in the growing medium making the adaptive response of SULTR1; 1 and SULTR1; 2 "per se" not enough to optimize the growth at sulfate external concentrations lower than the critical value.
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Affiliation(s)
- Alessandro Ferri
- Dipartimento di Scienze Agrarie e Ambientali – Produzione, Territorio, Agroenergia, Università degli Studi di MilanoMilano, Italy
| | - Clarissa Lancilli
- Dipartimento di Scienze Agrarie e Ambientali – Produzione, Territorio, Agroenergia, Università degli Studi di MilanoMilano, Italy
- Istituto d’Istruzione Superiore di CodognoCodogno, Italy
| | - Moez Maghrebi
- Dipartimento di Scienze Agrarie e Ambientali – Produzione, Territorio, Agroenergia, Università degli Studi di MilanoMilano, Italy
| | - Giorgio Lucchini
- Dipartimento di Scienze Agrarie e Ambientali – Produzione, Territorio, Agroenergia, Università degli Studi di MilanoMilano, Italy
| | - Gian Attilio Sacchi
- Dipartimento di Scienze Agrarie e Ambientali – Produzione, Territorio, Agroenergia, Università degli Studi di MilanoMilano, Italy
| | - Fabio F. Nocito
- Dipartimento di Scienze Agrarie e Ambientali – Produzione, Territorio, Agroenergia, Università degli Studi di MilanoMilano, Italy
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Maghrebi M, Chtourou R, Charfi F, Tignon J, Roussignol P, Delalande C, Bloch J, Thierry-Mieg V. Polariton linewidths in a semiconductor microcavity. Materials Science and Engineering: C 2002. [DOI: 10.1016/s0928-4931(02)00093-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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