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This Special Issue provides 15 research articles and 4 comprehensive review articles on various aspects of plant–metal/metalloid interactions. - Up-to-date information on plant responses to metals/metalloids are published. - Various mechanisms of plant tolerance to metals’/metalloids’ toxicity are presented. - Exogenous applications of mitigating metals’/metalloids’ toxicity are discussed. - Sustainable technologies in growing plants in metal/metalloid-contaminated environments are discussed. - Phytoremediation techniques for the remediation of metals/metalloids are discussed.

Research & information: general --- Biology, life sciences --- Botany & plant sciences --- metal stress --- toxicity --- silicon --- Si-fertilization --- genomics --- transporter genes --- cadmium toxicity --- oxidative stress --- antioxidative defense system --- photosynthetic pigments --- environmental pollution --- phytoextraction --- cadmium --- biostimulation --- oxidative damage --- metal toxicity --- sulphur nutrition --- stress mitigation --- cation exchange capacity --- glutathione --- agriculture --- Cd stress --- environmental --- gene expression --- PGPB --- switchgrass --- P. fasciculatum --- heavy metals --- tolerant plant --- protein carbonylation --- photosynthesis proteins --- mining soils --- thiols --- phenolic metabolites --- organic acids --- lead --- castor beans --- citric acid --- antioxidant enzyme --- antioxidant system --- ethylene --- glyoxalase system --- photosynthesis --- proline metabolism --- zinc --- jute varieties --- copper stress --- phytoremediation --- bioaccumulation factor --- translocation factor --- growth --- copper toxicity --- micronutrient deficiency --- iron --- nicotianamine --- histidine --- Cu-chelation --- lead pollution --- antioxidants --- bentonite --- grain biochemistry --- biochar --- maize hybrids --- nickel --- nutrients --- translocation --- heavy metal --- reactive oxygen species --- oxidative burst --- Rhododendron arboreum --- Vigna radiata --- enzymes activity --- chromium (Cr) --- polyphenols --- abiotic stress --- antioxidant defense --- methylglyoxal --- organic acid --- ripening physiology --- silver --- chemical elicitors --- chili --- fibrous crop --- environmental pollutants --- morphological traits --- soil remediation --- chelating agents --- chromium --- wastewater --- sunflower --- biomass --- chlorophyll contents

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We would like to provide the scientists a set of studies entitled "Study of the Influence of Abiotic and Biotic Stress Factors on Horticultural Plants". The reprint book contains 12 papers about the influence of the stress factors on the plant growth and soil parameters. Authors descripted the impact of the biotic and abiotic stress factors (i.e., high, and low temperature, salt, inorganic pollutants such as salts, heavy metals, phosphite, as well as irrigation) on the physiological, biochemical, and anatomical changes occurring in the plants at the cellular, tissue, organ, and whole plant level. The subject of these studies were different plant species, i.e., watermelon, lettuce, kale, potato, grapevine, hops, orchid, strawberry, and boxwood. The ideas of the papers can be divided into five topics: (1) achieving better quality of plant material for food production by changes made in the growth conditions, metabolic and genetic modifications; (2) increasing the plant resistance to environmental stresses by application of exogenous compounds of different chemical character; (3) reducing plant stress caused by anthropogenic activity applying nonmodified and genetically modified plants; (4) mitigating drought stress by irrigation; and 5) the positive effect of plant growth-promoting microorganisms on horticulture plants performance during drought stress.

abiotic stress --- strawberry --- companion plants --- phytoremediation --- cold stress --- cold-responsive genes --- anti-oxidants --- proline --- malondialdehyde --- hormone profiling --- 5-aminolevulinic acid --- Buxus megistophylla --- chlorophyll fast fluorescence characteristics --- mineral nutrition --- urban road greening --- orchid --- transformed ecosystems --- fly ash --- metals --- adaptive responses --- water exchange --- leaf mesostructure --- photosynthetic pigments --- photosynthesis --- plant introduction --- grapevine --- maximum daily shrinkage --- daily increase --- stem water potential --- leaf relative water content --- signal intensity --- Humulus lupulus L. --- soil porosity --- soil bulk density --- liming --- hop ridges --- Vitis spp. --- piwi cultivars --- disease-resistant varieties --- malic acid --- ripening --- fruit composition --- downy mildew --- phosphite stress --- antioxidant enzyme --- hydrogen peroxide --- root morphology --- potato --- genotypes --- Brassica oleracea var. acephala --- short-term cold stress --- phytochemicals --- pigments --- antioxidant enzymes --- chitosan (CTS) --- lettuce --- salinity --- soluble sugars --- climate change --- drought stress --- biopreparations --- plant stimulation --- plant growth-promoting microorganisms --- watermelon --- rootstock --- gene expression --- n/a

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This Special Issue provides 15 research articles and 4 comprehensive review articles on various aspects of plant–metal/metalloid interactions. - Up-to-date information on plant responses to metals/metalloids are published. - Various mechanisms of plant tolerance to metals’/metalloids’ toxicity are presented. - Exogenous applications of mitigating metals’/metalloids’ toxicity are discussed. - Sustainable technologies in growing plants in metal/metalloid-contaminated environments are discussed. - Phytoremediation techniques for the remediation of metals/metalloids are discussed.

Research & information: general --- Biology, life sciences --- Botany & plant sciences --- metal stress --- toxicity --- silicon --- Si-fertilization --- genomics --- transporter genes --- cadmium toxicity --- oxidative stress --- antioxidative defense system --- photosynthetic pigments --- environmental pollution --- phytoextraction --- cadmium --- biostimulation --- oxidative damage --- metal toxicity --- sulphur nutrition --- stress mitigation --- cation exchange capacity --- glutathione --- agriculture --- Cd stress --- environmental --- gene expression --- PGPB --- switchgrass --- P. fasciculatum --- heavy metals --- tolerant plant --- protein carbonylation --- photosynthesis proteins --- mining soils --- thiols --- phenolic metabolites --- organic acids --- lead --- castor beans --- citric acid --- antioxidant enzyme --- antioxidant system --- ethylene --- glyoxalase system --- photosynthesis --- proline metabolism --- zinc --- jute varieties --- copper stress --- phytoremediation --- bioaccumulation factor --- translocation factor --- growth --- copper toxicity --- micronutrient deficiency --- iron --- nicotianamine --- histidine --- Cu-chelation --- lead pollution --- antioxidants --- bentonite --- grain biochemistry --- biochar --- maize hybrids --- nickel --- nutrients --- translocation --- heavy metal --- reactive oxygen species --- oxidative burst --- Rhododendron arboreum --- Vigna radiata --- enzymes activity --- chromium (Cr) --- polyphenols --- abiotic stress --- antioxidant defense --- methylglyoxal --- organic acid --- ripening physiology --- silver --- chemical elicitors --- chili --- fibrous crop --- environmental pollutants --- morphological traits --- soil remediation --- chelating agents --- chromium --- wastewater --- sunflower --- biomass --- chlorophyll contents

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The plant hormone jasmonic acid (JA) and its derivative, an amino acid conjugate of JA (jasmonoyl isoleucine, JA-Ile), are signaling compounds involved in the regulation of defense and development in plants. The number of articles studying on JA has dramatically increased since the 1990s. JA is recognized as a stress hormone that regulates the plant response to biotic stresses such as herbivore and pathogen attacks, as well as abiotic stresses such as wounding and ultraviolet radiation. Recent studies have remarkably progressed the understanding of the importance of JA in the life cycle of plants. JA is directly involved in many physiological processes, including stamen growth, senescence, and root growth. JA regulates production of various metabolites such as phytoalexins and terpenoids. Many regulatory proteins involved in JA signaling have been identified by screening for Arabidopsis mutants. However, much more remains to be learned about JA signaling in other plant species. This Special Issue, “Jasmonic Acid Pathway in Plants”, contains 5 review and 15 research articles published by field experts. These articles will help with understanding the crucial roles of JA in its response to the several environmental stresses and development in plants.

transcription factor --- n/a --- ectopic metaxylem --- elicitor --- methyl jasmonate --- salicylic acid --- multiseeded --- Panax ginseng --- tea --- heterotrimeric G proteins --- Chinese flowering cabbage --- biosynthesis --- endocytosis --- jasmonic acid signaling --- MutMap --- JA-Ile --- gibberellic acid --- nitric oxide --- abiotic stresses --- MAP kinase --- light-sensitive --- transcriptional activation --- TIFY --- JAZ repressors --- JA --- gene expression --- environmental response --- xylogenesis --- priming --- jasmonate --- circadian clock --- phylogenetic analysis --- chloroplast --- Pogostemon cablin --- albino --- antioxidant enzyme activity --- stress --- Jas domain --- Zea mays --- auxin --- PatJAZ6 --- rice bacterial blight --- Tuscan varieties --- leaf senescence --- degron --- plant development --- Camellia sinensis --- AtRGS1 --- Prunus avium --- msd --- dammarenediol synthase --- sorghum --- jasmonic acid (JA) signaling pathway --- biological function --- ABA biosynthesis --- MYB transcription factor --- ethylene --- secondary metabolite --- cytokinin --- Nicotiana plants --- grain development --- grain number --- opr3 --- stress defense --- diffusion dynamics --- proline --- crosstalk --- ROS --- bioinformatics --- adventitious rooting --- ginsenoside --- jasmonates --- quantitative proteomics --- signaling --- signal molecules --- MeJA --- hypocotyl --- lipoxygenase --- jasmonic acid --- ancestral sequences --- proteomics --- Ralstonia solanacearum --- Jasmonate-ZIM domain --- signaling pathway --- patchouli alcohol --- volatile --- rice --- ectopic protoxylem --- chlorophyll fluorescence imaging --- type III effector --- fatty acid desaturase --- salt response --- transcriptional regulators --- aroma

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Abiotic stress represents the main constraint for agriculture, affecting plant growth and productivity worldwide. Yield losses in agriculture will be potentiated in the future by global warming, increasing contamination, and reduced availability of fertile land. The challenge for agriculture of the present and future is that of increasing the food supply for a continuously growing human population under environmental conditions that are deteriorating in many areas of the world. Minimizing the effects of diverse types of abiotic stresses represents a matter of general concern. Research on all topics related to abiotic stress tolerance, from understanding the stress response mechanisms of plants to developing cultivars and crops tolerant to stress, is a priority. This Special Issue is focused on the physiological and molecular characterization of crop resistance to abiotic stresses, including novel research, reviews, and opinion articles covering all aspects of the responses and mechanisms of plant tolerance to abiotic. Contributions on physiological, biochemical, and molecular studies of crop responses to abiotic stresses; the description and role of stress-responsive genes; marker-assisted screening of stress-tolerant genotypes; genetic engineering; and other biotechnological approaches to improve crop tolerance were considered.

silicon --- strawberry --- total antioxidants --- drought --- stress responses --- arbuscular mycorrhizal fungus (AMF) --- Rhizophagus clarus --- flood --- plants --- hormonal homeostasis --- physiological activity --- drought tolerance --- LEA --- Tevang 1 maize --- tobacco --- xylem vessel --- water stress --- root anatomy --- vegetable crops --- stomatal conductance --- canopy temperature --- chlorophyll fluorescence --- SPAD --- common buckwheat --- cotyledon --- root --- drought stress --- transcriptome analysis --- alfalfa --- evaluation --- growth --- heat stress --- physiological traits --- sodium azide --- okra --- waterlogging stress --- antioxidants --- gene expression --- salinity --- sodium --- potassium --- ion homeostasis-transport determinants --- CBL gene family --- Provitamin A --- maize --- morphological --- physiological --- biochemical --- β-carotene --- Capsicum annuum L. --- salt stress --- salicylic acid --- yeast --- proline --- pomegranate --- transcriptome --- tissue-specific --- signaling transduction pathways --- transcription factors --- ultrastructure --- osmotic stress --- wheat --- barley --- summer maize --- female panicle --- Abiotic stress --- climate change --- combined drought and heat stress --- genetic resources --- landrace accessions --- coated-urea fertilizer --- humic acid --- lignosulfonate --- natural polymers --- seaweed extract --- aquaporin --- Brassica rapa --- gas exchange parameters --- root hydraulic conductance --- zinc --- ALA --- abiotic stress --- chlorophyll --- photosynthesis --- antioxidant enzyme --- tomato cultivars --- salinity tolerance --- antioxidant activity --- lycopene --- ascorbic acid --- total polyphenols content --- Capsicum annuum --- root structure --- root hairs --- phosphorus use efficiency --- P-starvation --- macrominerals --- nutrient --- breeding --- eggplant --- wild relative --- vegetative growth --- ion homeostasis --- osmolytes --- oxidative stress --- Phaseolus --- landrace --- seed --- germination --- genetic approach --- sustainable agriculture --- weeds --- natural herbicides --- secondary metabolites --- postemergence --- phytotoxicity --- abiotic stress biomarkers --- bean landraces --- plant breeding --- salt stress tolerance --- water deficit --- water stress tolerance --- tea plant --- cold stress --- chitosan oligosaccharide --- physiological response --- plant growth --- agriculture --- traditions --- pseudo-science --- lunar phases --- physics --- biology --- education --- flooding --- nutrient stress --- ROS