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Article ; Online: Liposomes as selenium nanocarriers for foliar application to wheat plants: A biofortification strategy.

Viltres-Portales, Marcia / Sánchez-Martín, María-Jesús / Boada, Roberto / Llugany, Mercè / Valiente, Manuel

2024 Volume 448, Page(s) 139123

Abstract: In the present work, liposomes have been used as nanocarriers in the biofortification of wheat plants with selenium (Se) through foliar application. Liposomal formulations were prepared using 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) and ... ...

Abstract	In the present work, liposomes have been used as nanocarriers in the biofortification of wheat plants with selenium (Se) through foliar application. Liposomal formulations were prepared using 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) and Phospholipon®90H (P90H) (average size <100 nm), loaded with different concentrations of inorganic Se (selenite and selenate) and applied twice to the plants in the stage of vegetative growth. Liposomes enhanced Se uptake by wheat plants compared to direct application. The highest Se enrichment was achieved using the phospholipid DPPC and a concentration of 1000 μmol·L
MeSH term(s)	Triticum/chemistry ; Triticum/growth & development ; Triticum/metabolism ; Liposomes/chemistry ; Selenium/chemistry ; Selenium/metabolism ; Selenium/analysis ; Biofortification ; Plant Leaves/chemistry ; Plant Leaves/metabolism ; Plant Leaves/growth & development ; Nanoparticles/chemistry ; Drug Carriers/chemistry
Chemical Substances	Liposomes ; Selenium (H6241UJ22B) ; Drug Carriers
Language	English
Publishing date	2024-03-24
Publishing country	England
Document type	Journal Article
ZDB-ID	243123-3
ISSN	1873-7072 ; 0308-8146
ISSN (online)	1873-7072
ISSN	0308-8146
DOI	10.1016/j.foodchem.2024.139123
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Article ; Online: Phytochemical Profile, Bioactive Properties, and Se Speciation of Se-Biofortified Red Radish (

García-Tenesaca, Marilyn M / Llugany, Mercè / Boada, Roberto / Sánchez-Martín, María-Jesús / Valiente, Manuel

Journal of agricultural and food chemistry

2024 Volume 72, Issue 9, Page(s) 4947–4957

Abstract: The impact of selenium (Se) enrichment on bioactive compounds and sugars and Se speciation was assessed on different microgreens (green pea, red radish, and alfalfa). Sodium selenite and sodium selenate at a total concentration of 20 μM (1:1) lead to a ... ...

Abstract	The impact of selenium (Se) enrichment on bioactive compounds and sugars and Se speciation was assessed on different microgreens (green pea, red radish, and alfalfa). Sodium selenite and sodium selenate at a total concentration of 20 μM (1:1) lead to a noticeable Se biofortification (40-90 mg Se kg
MeSH term(s)	Humans ; Selenium/metabolism ; Raphanus/chemistry ; Pisum sativum ; Medicago sativa/metabolism ; Chlorophyll ; Phytochemicals
Chemical Substances	Selenium (H6241UJ22B) ; Chlorophyll (1406-65-1) ; Phytochemicals
Language	English
Publishing date	2024-02-23
Publishing country	United States
Document type	Journal Article
ZDB-ID	241619-0
ISSN	1520-5118 ; 0021-8561
ISSN (online)	1520-5118
ISSN	0021-8561
DOI	10.1021/acs.jafc.3c08441
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Article ; Online: Direct and indirect selenium speciation in biofortified wheat: A tale of two techniques

Subirana, Maria Angels / Boada, Roberto / Xiao, Tingting / Llugany, Mercè / Valiente, Manuel

Physiologia Plantarum. 2023 Jan., v. 175, no. 1 p.e13843-

2023

Abstract: Wheat can be biofortified with different inorganic selenium (Se) forms, selenite or selenate. The choice of Se source influences the physiological response of the plant and the Se metabolites produced. We looked at selenium uptake, distribution and ... ...

Abstract	Wheat can be biofortified with different inorganic selenium (Se) forms, selenite or selenate. The choice of Se source influences the physiological response of the plant and the Se metabolites produced. We looked at selenium uptake, distribution and metabolization in wheat exposed to selenite, selenate and a 1:1 molar mixture of both to determine the impact of each treatment on the Se speciation in roots, shoots, and grains. To achieve a comprehensive quantification of the Se species, the complementarity of high‐performance liquid chromatography coupled with inductively coupled plasma mass spectrometry and X‐ray absorption spectroscopy was exploited. This approach allowed the identification of the six main selenium species: selenomethionine, selenocysteine, selenocystine, selenite, selenate, and elemental selenium. The three treatments resulted in similar total selenium concentration in grains, 90–150 mg Se kg⁻¹, but produced different effects in the plant. Selenite enhanced root accumulation (66% of selenium) and induced the maximum toxicity, whereas selenate favored shoot translocation (46%). With the 1:1 mixture, selenium was distributed along the plant generating lower toxicity. Although all conditions resulted in >92% of organic selenium in the grain, selenate produced mainly C‐Se‐C forms, such as selenomethionine, while selenite (alone or in the mixture) enhanced the production of C‐Se‐Se‐C forms, such as selenocystine, modifying the selenoamino acid composition. These results provide a better understanding of the metabolization of selenium species which is key to minimize plant toxicity and any concomitant effect that may arise due to Se‐biofortification.
Keywords	X-ray absorption spectroscopy ; atomic absorption spectrometry ; biofortification ; high performance liquid chromatography ; metabolites ; physiological response ; selenates ; selenites ; selenium ; selenocysteine ; selenomethionine ; toxicity ; wheat
Language	English
Dates of publication	2023-01
Publishing place	Blackwell Publishing Ltd
Document type	Article ; Online
Note	JOURNAL ARTICLE
ZDB-ID	2020837-6
ISSN	1399-3054 ; 0031-9317
ISSN (online)	1399-3054
ISSN	0031-9317
DOI	10.1111/ppl.13843
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Article: Co-application of Se and a biostimulant at different wheat growth stages: Influence on grain development

Xiao, Tingting / Boada, Roberto / Llugany, Mercè / Valiente, Manuel

Plant physiology and biochemistry. 2021 Mar., v. 160

2021

Abstract: An appropriate selenium intake can be beneficial for human health. Se-biofortified food in Se-deficient regions is becoming an increasingly common practice but there are still issues to be addressed regarding the observed Se-induced toxicity to the plant. ...

Abstract	An appropriate selenium intake can be beneficial for human health. Se-biofortified food in Se-deficient regions is becoming an increasingly common practice but there are still issues to be addressed regarding the observed Se-induced toxicity to the plant. In this respect, plant biostimulants are used to enhance nutrition efficiency, abiotic stress tolerance and crop quality. In this work, the efficacy of a plant biostimulant to counteract the Se-induced stress in wheat plants is experimentally assessed. The co-application of different Se-biofortification treatments and the biostimulant at different growth stages (tillering or heading stage) was investigated. The use of micro focused X-ray spectroscopy allows us to confirm organic Se species to be the main Se species found in wheat grain and that the proportion of organic Se species is only slightly affected by the Se application stage. Our study proves that the biostimulant had a key role in the enhancement of both the amount of grains produced per spike and their dry biomass without hindering Se enrichment process, neither diminishing the Se concentration nor massively disrupting the Se species present. This information will be useful to minimize both plant toxicity and economic cost towards a more effective and plant healthy selenium supplementation.
Keywords	X-radiation ; abiotic stress ; biomass ; crop quality ; economic costs ; human health ; seed development ; selenium ; spectroscopy ; stress tolerance ; tillering ; toxicity ; wheat
Language	English
Dates of publication	2021-03
Size	p. 184-192.
Publishing place	Elsevier Masson SAS
Document type	Article
Note	NAL-AP-2-clean
ZDB-ID	742978-2
ISSN	1873-2690 ; 0981-9428
ISSN (online)	1873-2690
ISSN	0981-9428
DOI	10.1016/j.plaphy.2021.01.025
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Article ; Online: Co-application of Se and a biostimulant at different wheat growth stages: Influence on grain development.

Xiao, Tingting / Boada, Roberto / Llugany, Mercè / Valiente, Manuel

Plant physiology and biochemistry : PPB

2021 Volume 160, Page(s) 184–192

Abstract	An appropriate selenium intake can be beneficial for human health. Se-biofortified food in Se-deficient regions is becoming an increasingly common practice but there are still issues to be addressed regarding the observed Se-induced toxicity to the plant. In this respect, plant biostimulants are used to enhance nutrition efficiency, abiotic stress tolerance and crop quality. In this work, the efficacy of a plant biostimulant to counteract the Se-induced stress in wheat plants is experimentally assessed. The co-application of different Se-biofortification treatments and the biostimulant at different growth stages (tillering or heading stage) was investigated. The use of micro focused X-ray spectroscopy allows us to confirm organic Se species to be the main Se species found in wheat grain and that the proportion of organic Se species is only slightly affected by the Se application stage. Our study proves that the biostimulant had a key role in the enhancement of both the amount of grains produced per spike and their dry biomass without hindering Se enrichment process, neither diminishing the Se concentration nor massively disrupting the Se species present. This information will be useful to minimize both plant toxicity and economic cost towards a more effective and plant healthy selenium supplementation.
MeSH term(s)	Biofortification ; Edible Grain/drug effects ; Edible Grain/growth & development ; Seeds/drug effects ; Seeds/growth & development ; Selenium/pharmacology ; Triticum/drug effects ; Triticum/growth & development
Chemical Substances	Selenium (H6241UJ22B)
Language	English
Publishing date	2021-01-21
Publishing country	France
Document type	Journal Article
ZDB-ID	742978-2
ISSN	1873-2690 ; 0981-9428
ISSN (online)	1873-2690
ISSN	0981-9428
DOI	10.1016/j.plaphy.2021.01.025
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Article ; Online: Selenium biofortification of microgreens: Influence on phytochemicals, pigments and nutrients.

Viltres-Portales, Marcia / Sánchez-Martín, María-Jesús / Llugany, Mercè / Boada, Roberto / Valiente, Manuel

Plant physiology and biochemistry : PPB

2023 Volume 206, Page(s) 108283

Abstract: Kale (Brassica oleracea L. var. sabellica L.), kohlrabi (Brassica oleracea L. var. gongylodes L.) and wheat (Triticum aestivum L. cv. Bancal) microgreens were cultivated in presence of selenium 20 μmol ... ...

Abstract	Kale (Brassica oleracea L. var. sabellica L.), kohlrabi (Brassica oleracea L. var. gongylodes L.) and wheat (Triticum aestivum L. cv. Bancal) microgreens were cultivated in presence of selenium 20 μmol L
MeSH term(s)	Humans ; Selenium/pharmacology ; Selenium/metabolism ; Biofortification/methods ; Antioxidants/metabolism ; Brassica/metabolism ; Phytochemicals/metabolism ; Nutrients
Chemical Substances	Selenium (H6241UJ22B) ; Antioxidants ; Phytochemicals
Language	English
Publishing date	2023-12-19
Publishing country	France
Document type	Journal Article
ZDB-ID	742978-2
ISSN	1873-2690 ; 0981-9428
ISSN (online)	1873-2690
ISSN	0981-9428
DOI	10.1016/j.plaphy.2023.108283
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Article ; Online: Direct and indirect selenium speciation in biofortified wheat: A tale of two techniques.

Subirana, Maria Angels / Boada, Roberto / Xiao, Tingting / Llugany, Mercè / Valiente, Manuel

Physiologia plantarum

2022 Volume 175, Issue 1, Page(s) e13843

Abstract	Wheat can be biofortified with different inorganic selenium (Se) forms, selenite or selenate. The choice of Se source influences the physiological response of the plant and the Se metabolites produced. We looked at selenium uptake, distribution and metabolization in wheat exposed to selenite, selenate and a 1:1 molar mixture of both to determine the impact of each treatment on the Se speciation in roots, shoots, and grains. To achieve a comprehensive quantification of the Se species, the complementarity of high-performance liquid chromatography coupled with inductively coupled plasma mass spectrometry and X-ray absorption spectroscopy was exploited. This approach allowed the identification of the six main selenium species: selenomethionine, selenocysteine, selenocystine, selenite, selenate, and elemental selenium. The three treatments resulted in similar total selenium concentration in grains, 90-150 mg Se kg
MeSH term(s)	Selenium/analysis ; Selenium/metabolism ; Selenomethionine/metabolism ; Selenic Acid/metabolism ; Triticum/metabolism ; Selenious Acid/metabolism
Chemical Substances	Selenium (H6241UJ22B) ; Selenomethionine (964MRK2PEL) ; selenocystine (1464-43-3) ; Selenic Acid (HV0Y51NC4J) ; Selenious Acid (F6A27P4Q4R)
Language	English
Publishing date	2022-12-20
Publishing country	Denmark
Document type	Journal Article
ZDB-ID	2020837-6
ISSN	1399-3054 ; 0031-9317
ISSN (online)	1399-3054
ISSN	0031-9317
DOI	10.1111/ppl.13843
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Article ; Online: Mercury speciation in selenium enriched wheat plants hydroponically exposed to mercury pollution.

Manivannan, Nithyapriya / Subirana, Maria Angels / Boada, Roberto / Marini, Carlo / Llugany, Mercè / Valiente, Manuel / Simonelli, Laura

Scientific reports

2023 Volume 13, Issue 1, Page(s) 21132

Abstract: Mercury (Hg) pollution in agricultural soils and its potential pathway to the human food chain can pose a serious health concern. Understanding the pathway of Hg in plants and how the speciation may change upon interaction with other elements used for ... ...

Abstract	Mercury (Hg) pollution in agricultural soils and its potential pathway to the human food chain can pose a serious health concern. Understanding the pathway of Hg in plants and how the speciation may change upon interaction with other elements used for biofortification can be critical to assess the real implications for the final plant-based product. In that respect, selenium (Se) biofortification of crops grown in Se-poor soil regions is becoming a common practice to overcome Se deficient diets. Therefore, it is important to assess the interplay between these two elements since Se may form complexes with Hg reducing its bioavailability and toxicity. In this work, the speciation of Hg in wheat plants grown hydroponically under the presence of Hg (HgCl
MeSH term(s)	Humans ; Selenium/metabolism ; Mercury/toxicity ; Mercury/metabolism ; Methylmercury Compounds/toxicity ; Methylmercury Compounds/metabolism ; Triticum/metabolism ; Soil/chemistry ; Crops, Agricultural/metabolism
Chemical Substances	Selenium (H6241UJ22B) ; Mercury (FXS1BY2PGL) ; Methylmercury Compounds ; Soil
Language	English
Publishing date	2023-11-30
Publishing country	England
Document type	Journal Article
ZDB-ID	2615211-3
ISSN	2045-2322 ; 2045-2322
ISSN (online)	2045-2322
ISSN	2045-2322
DOI	10.1038/s41598-023-46056-5
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Article: Phytohormone production and morphology of Spirulina platensis grown in dairy wastewaters

Zapata, Daniela / Arroyave, Catalina / Cardona, Lorena / Aristizábal, Adriana / Poschenrieder, Charlotte / Llugany, Mercè

Algal research. 2021 Nov., v. 59

2021

Abstract: Microalgae cultivation in dairy wastewaters is of major interest for nutrient removal and sustainable microalgal biomass production. This biomass is a profitable raw material to produce biofertilizers and biocompounds for use in agriculture and food and ... ...

Abstract	Microalgae cultivation in dairy wastewaters is of major interest for nutrient removal and sustainable microalgal biomass production. This biomass is a profitable raw material to produce biofertilizers and biocompounds for use in agriculture and food and pharmaceutical industries. This study aimed to compare biomass production, morphology, and phytohormone levels in Spirulina platensis (UTEX LB1926) grown on dairy wastewaters, in comparison to Zarrouk medium. An extraction method from lyophilized biomass was developed to detect and quantify the endogenous phytohormones Indole-3-acetic acid (IAA), Phenylacetic acid (PAA), Salicylic acid (SA), Jasmonic acid (JA), Abscisic acid (ABA), Gibberellin A1 (GA1), Gibberellin A4 (GA4), Indole-3-butyric acid (IBA), 1-Aminocyclopropane-1-carboxylic acid (ACC), 6-Benzylaminopurine (BAP), and Kinetin (KA) in S. platensis, cultivated in dairy wastewater and cheese whey, from a local dairy industry. Phytohormones were generally higher in S. platensis cultivated in dairy wastewaters than in a synthetic medium. The concentrations of phytohormones widely varied with the culture medium and the lighting conditions. Low light intensity significantly promoted the filaments of S. platensis to grow longer and thicker in wastewater, especially in cheese whey, enhancing biomass harvest. The cultivation of S. platensis in dairy wastewaters allows the production of both biomass and phytohormones, at low cost, while treating these waters.
Keywords	1-aminocyclopropane-1-carboxylic acid ; Arthrospira platensis ; abscisic acid ; benzyladenine ; biofertilizers ; biomass production ; cheese whey ; culture media ; dairy industry ; freeze drying ; gibberellins ; indole acetic acid ; indole butyric acid ; jasmonic acid ; kinetin ; light intensity ; microalgae ; phenylacetic acid ; raw materials ; research ; salicylic acid ; wastewater
Language	English
Dates of publication	2021-11
Publishing place	Elsevier B.V.
Document type	Article
ISSN	2211-9264
DOI	10.1016/j.algal.2021.102469
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Article: Trichoderma asperellum as a preventive and curative agent to control Fusarium wilt in Stevia rebaudiana

Díaz-Gutiérrez, Carol / Arroyave, Catalina / Llugany, Mercè / Poschenrieder, Charlotte / Martos, Soledad / Peláez, Carlos

Biological control. 2021 Apr., v. 155

2021

Abstract: Stevia has been introduced in many countries for the production of sugar-free sweeteners. Concurrently, several emerging pathogens have been described in this plant host. One of the latest has been Fusarium oxysporum, a well-known soil-borne pathogen ... ...

Abstract	Stevia has been introduced in many countries for the production of sugar-free sweeteners. Concurrently, several emerging pathogens have been described in this plant host. One of the latest has been Fusarium oxysporum, a well-known soil-borne pathogen causing vascular wilt in many plants. Classical methods to control Fusarium wilt are being questioned, and biocontrol agents are gaining importance as part of integrated approaches to manage the disease. Different species of Trichoderma have been described as optimal candidates to control F. oxysporum. However, their effectiveness is generally reported in annual plants and efficacy depends on the application protocol. We conducted an experiment to assess the preventive or curative potential of the rhizospheric T. asperellum UDEAGIEM-H01 strain against F. oxysporum on rooted cuttings of S. rebaudiana. After 33 days, F. oxysporum-infected stevia seedlings were severely affected (90% of disease incidence). Contrastingly, only 10% of the T. asperellum pre-treated plants and 70% of the post-treated showed Fusarium wilt symptoms. Dual confrontation assays proved the potential antagonistic effect of T. asperellum against F. oxysporum and five additional soil-borne pathogens affecting S. rebaudiana. Further in vitro tests revealed that this new strain of T. asperellum produces phytohormones (salicylic and jasmonic acid), and the secretion of cell-wall degrading enzymes (chitinases and cellulases); this ability could be related to its antagonistic and mycoparasitic activity. The present work concluded that T. asperellum UDEAGIEM-H01 has a high ability, mainly as a preventive agent, to control F. oxysporum in stevia plants showing further antagonistic effects and mycoparasitism on other fungal pathogens.
Keywords	Fusarium oxysporum ; Fusarium wilt ; Stevia rebaudiana ; Trichoderma asperellum ; annuals ; assays ; biological control ; biological control agents ; cellulases ; chitinase ; fungi ; host plants ; in vitro studies ; jasmonic acid ; mycoparasites ; pathogens ; plant hormones ; protocols ; root cuttings ; secretion ; seedlings ; soil-borne diseases ; sweeteners
Language	English
Dates of publication	2021-04
Publishing place	Elsevier Inc.
Document type	Article
Note	NAL-light
ZDB-ID	1149971-0
ISSN	1049-9644
ISSN	1049-9644
DOI	10.1016/j.biocontrol.2021.104537
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