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Enhancing Lettuce Drought Tolerance: The Role of Organic Acids in Photosynthesis and Oxidative Defense

cris.virtual.author-orcid0000-0002-7085-4867
cris.virtual.author-orcid0000-0001-8283-8779
cris.virtual.author-orcid0000-0003-4341-5399
cris.virtual.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtual.author-orcid0000-0001-9250-4393
cris.virtualsource.author-orcid44de55a1-7b0a-4cdf-8336-5455e5fbbfc9
cris.virtualsource.author-orcid1925f9e9-b0be-433f-a409-271641cc7463
cris.virtualsource.author-orcid9861de92-2d0b-4d3f-ac43-d7ac7fc74706
cris.virtualsource.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtualsource.author-orcidb449fb52-7ef2-4cac-9b3b-ec94daac3768
dc.abstract.enThe aim of this study was to investigate the effects of maleic acid (MA), salicylic acid (SA), and citric acid (CA) on alleviating the drought stress of a lettuce (Lactuca sativa L.) hydroponic culture. The effect of these organic acids was tested under stress conditions induced by polyethene glycol (PEG 6000) at 5% and 7.5% concentrations. Drought stress reduced the fresh and dry matter yields of plants. The acid treatment caused increasing tendencies in the fresh weight yield:control (SA, MA), PEG 7.5% (SA, MA, CA)) and dry weight yield (control (SA, MA), PEG 5% (MA), PEG 7.5% (SA, MA)). The acid treatment also enhanced the nutrient uptake of stressed plants: SA: N (PEG 7.5%), K (PEG 5 and 7.5%); MA: N, P, K, Ca (PEG 5 and 7.5%). This work found that chlorophyll a and b amounts did not change under applied experimental conditions. Most parameters of chlorophyll fluorescence did not depend on either the level of applied water stress (PEG level) or the type of spraying. Drought stress increased leaf superoxide anion (O2•−) and malondialdehyde (MDA) levels but decreased H2O2. Proline (Pro) and phenolic compounds (TFC), including flavonols (Fla), accumulated more in stressed plants. Drought stress also affected the chlorophyll fluorescence. Our results suggest that acids can improve plant tolerance to drought stress by boosting the antioxidant defence system and reducing the oxidative damage caused by reactive oxygen species.
dc.affiliationWydział Rolnictwa, Ogrodnictwa i Biotechnologii
dc.affiliation.instituteKatedra Fizjologii Roślin
dc.affiliation.instituteKatedra Fitopatologii i Nasiennictwa
dc.article.number5119
dc.contributor.authorKleiber, Tomasz
dc.contributor.authorChadzinikolau, Tamara
dc.contributor.authorFormela-Luboińska, Magda
dc.contributor.authorLartey, Jeffrey Larte
dc.contributor.authorKosiada, Tomasz
dc.date.access2024-07-30
dc.date.accessioned2024-08-22T06:32:00Z
dc.date.available2024-08-22T06:32:00Z
dc.date.copyright2024-06-12
dc.date.issued2024
dc.description.abstract<jats:p>The aim of this study was to investigate the effects of maleic acid (MA), salicylic acid (SA), and citric acid (CA) on alleviating the drought stress of a lettuce (Lactuca sativa L.) hydroponic culture. The effect of these organic acids was tested under stress conditions induced by polyethene glycol (PEG 6000) at 5% and 7.5% concentrations. Drought stress reduced the fresh and dry matter yields of plants. The acid treatment caused increasing tendencies in the fresh weight yield:control (SA, MA), PEG 7.5% (SA, MA, CA)) and dry weight yield (control (SA, MA), PEG 5% (MA), PEG 7.5% (SA, MA)). The acid treatment also enhanced the nutrient uptake of stressed plants: SA: N (PEG 7.5%), K (PEG 5 and 7.5%); MA: N, P, K, Ca (PEG 5 and 7.5%). This work found that chlorophyll a and b amounts did not change under applied experimental conditions. Most parameters of chlorophyll fluorescence did not depend on either the level of applied water stress (PEG level) or the type of spraying. Drought stress increased leaf superoxide anion (O2•−) and malondialdehyde (MDA) levels but decreased H2O2. Proline (Pro) and phenolic compounds (TFC), including flavonols (Fla), accumulated more in stressed plants. Drought stress also affected the chlorophyll fluorescence. Our results suggest that acids can improve plant tolerance to drought stress by boosting the antioxidant defence system and reducing the oxidative damage caused by reactive oxygen species.</jats:p>
dc.description.accesstimeat_publication
dc.description.financepublication_nocost
dc.description.financecost0,00
dc.description.if2,5
dc.description.number12
dc.description.points100
dc.description.reviewreview
dc.description.versionfinal_published
dc.description.volume14
dc.identifier.doi10.3390/app14125119
dc.identifier.eissn2076-3417
dc.identifier.urihttps://sciencerep.up.poznan.pl/handle/item/1671
dc.identifier.weblinkhttps://www.mdpi.com/2076-3417/14/12/5119
dc.languageen
dc.relation.ispartofApplied Sciences (Switzerland)
dc.rightsCC-BY
dc.sciencecloudsend
dc.share.typeOPEN_JOURNAL
dc.subject.endrought stress
dc.subject.enpolyethene glycol
dc.subject.enorganic acids
dc.subject.enphotosynthetic parameters
dc.subject.enchlorophyll fluorescence
dc.subject.enreactive oxygen species
dc.subject.enantioxidant properties
dc.titleEnhancing Lettuce Drought Tolerance: The Role of Organic Acids in Photosynthesis and Oxidative Defense
dc.typeJournalArticle
dspace.entity.typePublication
oaire.citation.issue12
oaire.citation.volume14
project.funder.nameb.d.