495 results match your criteria epicuticular wax

Relative humidity regimes modify epicuticular wax metabolism and fruit properties during Navelate orange conservation in an ABA-dependent manner.

Food Chem 2021 Aug 24;369:130946. Epub 2021 Aug 24.

Department of Food Biotechnology, Institute of Chemistry and Food Technology (IATA-CSIC), Avenida Dr. Catedrático Agustín Escardino 7, 46980 Paterna, Valencia, Spain. Electronic address:

Relative humidity (RH) during conservation and the chemical composition of epicuticular wax layer are factors that determine fruit quality and weight loss. This study investigates the influence of RH on the epicuticular wax metabolism during citrus fruit storage, and how it is affected by abscisic acid (ABA). Low RH conditions increased alcohols and fatty acids abundance, mainly due to accumulation of docosanol and lignoceric and cerotic acids. Read More

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Effects of salicylic acid treatment on fruit quality and wax composition of blueberry (Vaccinium virgatum Ait).

Food Chem 2021 Aug 3;368:130757. Epub 2021 Aug 3.

Food Science Institute, Zhejiang Academy of Agricultural Sciences, Key Laboratory of Post-Harvest Handing of Fruits, Ministry of Agriculture and Rural Affairs, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Key Laboratory of Postharvest Preservation and Processing of Fruits and Vegetables, China National Light Industry, Hangzhou 310021, China. Electronic address:

The cuticular wax layer in fruit is a hydrophobic barrier which protects fruit from biotic and abiotic stress. The cuticular wax also affect fruit quality. This paper investigated the effects of salicylic acid on fruit quality and the cuticular wax in blueberry fruit during storage at room temperature (25 °C). Read More

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Morpho-anatomical characterization of Eryngium yuccifolium ('Rattlesnake-master').

Microsc Res Tech 2021 Aug 9. Epub 2021 Aug 9.

National Center for Natural Products Research, School of Pharmacy, The University of Mississippi, University, Mississippi, USA.

This paper provides detailed morpho-anatomical and histochemical characteristics of the leaves, peduncles, stems, and roots of Eryngium yuccifolium Michx. (Apiaceae) by bright-field light and scanning electron microscopy. Noteworthy morpho-anatomical features include the monocot-like leaves with parallel venation and distant marginal bristles, amphistomatic leaves with paracytic or anisocytic stomata and heterogenous isobilateral mesophyll, the presence of epicuticular wax crystalloids on both leaf surfaces, calcium oxalate druses and secretory canals in all the studied plant parts, presence of hypodermis, stem and peduncle with longitudinal ribs containing collenchyma, presence of aerenchyma in the peduncle and root, and absence of sclerenchyma in all the plant parts analyzed. Read More

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Cuticular wax composition contributes to different strategies of foliar water uptake in six plant species from foggy rupestrian grassland in tropical mountains.

Phytochemistry 2021 Oct 5;190:112894. Epub 2021 Aug 5.

Departamento de Botânica, Universidade Federal de Minas Gerais, Minas Gerais, Brazil.

The cuticle is the outermost region of the epidermal cell wall of plant aerial organs. The cuticle acts as a two-way lipid barrier for water diffusion; therefore, it plays a vital role in foliar water uptake (FWU). We hypothesised that the chemical composition of the cuticular waxes influences the FWU strategy that plants adopt in a foggy tropical ecosystem. Read More

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October 2021

"Wax On, Wax Off": In Vivo Imaging of Plant Physiology and Disease with Fourier Transform Infrared Reflectance Microspectroscopy.

Adv Sci (Weinh) 2021 Aug 2:e2101902. Epub 2021 Aug 2.

School of Molecular and Life Sciences, Curtin University, Bentley, Western Australia, 6102, Australia.

Analysis of the epicuticular wax layer on the surface of plant leaves can provide a unique window into plant physiology and responses to environmental stimuli. Well-established analytical methodologies can quantify epicuticular wax composition, yet few methods are capable of imaging wax distribution in situ or in vivo. Here, the first report of Fourier transform infrared (FTIR) reflectance spectroscopic imaging as a non-destructive, in situ, method to investigate variation in epicuticular wax distribution at 25 µm spatial resolution is presented. Read More

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Cuticle and skin cell walls have common and unique roles in grape berry splitting.

Hortic Res 2021 Aug 1;8(1):168. Epub 2021 Aug 1.

Department of Horticulture, Irrigated Agriculture Research and Extension Center, Washington State University, Prosser, WA, USA.

The skin protects a fruit from environmental stresses and supports the fruit's structure. Failure of the skin leads to fruit splitting and may compromise commercial production for fruit growers. The mechanical properties of the cuticle and skin cell walls might influence the splitting susceptibility of fleshy fruits. Read More

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Correlation between leaf epicuticular wax composition and structure, physio-biochemical traits and drought resistance in glaucous and non-glaucous near-isogenic lines of rye.

Plant J 2021 Jul 20. Epub 2021 Jul 20.

Department of Plant Genetics, Breeding and Biotechnology, West-Pomeranian University of Technology, Słowackiego 17, 71-434, Szczecin, Poland.

The objective of this research was to investigate the differences between glaucous and non-glaucous near-isogenic lines (NILs) of winter rye (Secale cereale L.) in terms of epicuticular wax layer properties (weight, composition, and crystal morphology), selected physiological and biochemical responses, yield components, above-ground biomass, and plant height under soil drought stress. An important aspect of this analysis was to examine the correlation between the above characteristics. Read More

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Leaf Cuticular Transpiration Barrier Organization in Tea Tree Under Normal Growth Conditions.

Front Plant Sci 2021 30;12:655799. Epub 2021 Jun 30.

Tea Research Institute, Fujian Academy of Agricultural Sciences, Fuan, China.

The cuticle plays a major role in restricting nonstomatal water transpiration in plants. There is therefore a long-standing interest to understand the structure and function of the plant cuticle. Although many efforts have been devoted, it remains controversial to what degree the various cuticular parameters contribute to the water transpiration barrier. Read More

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Chemical Composition, Crystal Morphology, and Key Gene Expression of the Cuticular Waxes of Goji ( L.) Berries.

J Agric Food Chem 2021 Jul 12;69(28):7874-7883. Epub 2021 Jul 12.

National Wolfberry Engineering Research Center, Ningxia Academy of Agricultural and Forestry Sciences, Yinchuan 750002, China.

The cuticular wax of fruit is closely related to quality, storability, and pathogen susceptibility after harvest. However, little is known about the cuticular wax of goji berry ( L.) cultivars. Read More

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The Plant Cuticle: An Ancient Guardian Barrier Set Against Long-Standing Rivals.

Front Plant Sci 2021 25;12:663165. Epub 2021 Jun 25.

Department of Vegetable and Field Crops, Institute of Plant Sciences, Agricultural Research Organization (ARO), Volcani Center, Rishon LeZion, Israel.

The aerial surfaces of plants are covered by a protective barrier formed by the cutin polyester and waxes, collectively referred to as the cuticle. Plant cuticles prevent the loss of water, regulate transpiration, and facilitate the transport of gases and solutes. As the cuticle covers the outermost epidermal cell layer, it also acts as the first line of defense against environmental cues and biotic stresses triggered by a large array of pathogens and pests, such as fungi, bacteria, and insects. Read More

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Cyclodextrin polymer-valved MoS-embedded mesoporous silica nanopesticides toward hierarchical targets via multidimensional stimuli of biological and natural environments.

J Hazard Mater 2021 Oct 13;419:126404. Epub 2021 Jun 13.

Key Laboratory of Mesoscopic Chemistry (Ministry of Education), State Key Laboratory of Coordination Chemistry, and School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People's Republic of China. Electronic address:

Targeted delivery of pesticides towards pests and pathogens can significantly improve the bioavailability and efficacy of pesticides and minimize the impact on the environment. Cyclodextrin polymer (CDP)-valved, benzimidazole functionalized, MoS-embedded mesoporous silica ([email protected]@CDP) nanopesticides were constructed toward hierarchical biological targets of pests, pathogens, and foliage. The splash and bounce of the aqueous droplets containing [email protected]@CDP nanoparticles in the presence of Aersosol OT on superhydrophobic surfaces were well inhibited available for excellent wetting to prevent pesticides from losing to the environment. Read More

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October 2021

High-resolution spectral information enables phenotyping of leaf epicuticular wax in wheat.

Plant Methods 2021 Jun 7;17(1):58. Epub 2021 Jun 7.

Department of Soil and Crop Sciences, Texas A&M University, College Station, Texas, 77840, USA.

Background: Epicuticular wax (EW) is the first line of defense in plants for protection against biotic and abiotic factors in the environment. In wheat, EW is associated with resilience to heat and drought stress, however, the current limitations on phenotyping EW restrict the integration of this secondary trait into wheat breeding pipelines. In this study we evaluated the use of light reflectance as a proxy for EW load and developed an efficient indirect method for the selection of genotypes with high EW density. Read More

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Increased Cuticle Waxes by Overexpression of WSD1 Improves Osmotic Stress Tolerance in and .

Int J Mol Sci 2021 May 13;22(10). Epub 2021 May 13.

Stockbridge School of Agriculture, University of Massachusetts Amherst, Amherst, MA 01003, USA.

To ensure global food security under the changing climate, there is a strong need for developing 'climate resilient crops' that can thrive and produce better yields under extreme environmental conditions such as drought, salinity, and high temperature. To enhance plant productivity under the adverse conditions, we constitutively overexpressed a bifunctional () gene, which plays a critical role in wax ester synthesis in Arabidopsis stem and leaf tissues. The qRT-PCR analysis showed a strong upregulation of transcripts by mannitol, NaCl, and abscisic acid (ABA) treatments, particularly in shoots. Read More

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Single-Walled Carbon Nanotubes Modify Leaf Micromorphology, Chloroplast Ultrastructure and Photosynthetic Activity of Pea Plants.

Int J Mol Sci 2021 May 5;22(9). Epub 2021 May 5.

Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Acad Georgi Bonchev Str. Bl. 21, 1113 Sofia, Bulgaria.

Single-walled carbon nanotubes (SWCNTs) emerge as promising novel carbon-based nanoparticles for use in biomedicine, pharmacology and precision agriculture. They were shown to penetrate cell walls and membranes and to physically interact and exchange electrons with photosynthetic complexes in vitro. Here, for the first time, we studied the concentration-dependent effect of foliar application of copolymer-grafted SWCNTs on the structural and functional characteristics of intact pea plants. Read More

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Transcriptome and physiological analyses provide insights into the leaf epicuticular wax accumulation mechanism in yellowhorn.

Hortic Res 2021 Jun 1;8(1):134. Epub 2021 Jun 1.

State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, 100091, Beijing, China.

Plantations and production of yellowhorn, one of the most important woody oil and urban greening trees widely cultivated in northern China, have gradually become limited by drought stress. The epicuticular wax layer plays a key role in the protection of yellowhorn trees from drought and other stresses. However, there is no research on the mechanism of wax loading in yellowhorn trees. Read More

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Physiological, biochemical, and anatomical responses of Araucaria araucana seedlings to controlled water restriction.

Plant Physiol Biochem 2021 Aug 12;165:47-56. Epub 2021 May 12.

Argentine Institute of Nivology, Glaciology and Environmental Sciences (IANIGLA, CONICET-Universidad Nacional de Cuyo), 5500, Mendoza, Argentina; Universidade de Sao Paulo, Escola Superior de Agricultura Luiz de Queiroz, Department of Forest Resource, 13418-900, Piracicaba, Brazil; Hémera Centro de Observación de la Tierra, Facultad de Ciencias, Universidad Mayor, José Toribio Medina 29, Santiago, 8340589, Chile.

Water stress triggers acclimation responses and can damage plants, which varies by species and stress levels. Ongoing climate change is projected to result in longer and more intense water stress conditions leading to an alarming increase in drought-induced forest decline. The aim of this study was to evaluate the physiological responses of leaves and stem wood anatomy from Araucaria araucana pot-grown three-year old seedlings, a conifer tree from northwestern Patagonia. Read More

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Photolysis of the herbicide dicamba in aqueous solutions and on corn () epicuticular waxes.

Environ Sci Process Impacts 2021 May;23(5):786-802

Gustavus Adolphus College, 800 W College Avenue, St Peter, Minnesota 56082, USA.

Dicamba, 3,6-dichloro-2-methoxybenzoic acid, has been used in agriculture as an herbicide for over fifty years, and has seen an increase in use in the past decade due to the development of glyphosate resistant weeds and soybeans genetically modified to resist dicamba. Despite the previous use of dicamba, many questions remain regarding its environmental fate, especially the new commercial formulations used on genetically modified crops. Here, the photolysis of dicamba, including the commercial formulation Diablo®, is examined in aqueous solutions of varying water quality and on the surface of corn epicuticular waxes. Read More

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Physical and Chemical Traits of Grape Varieties Influence Preferences and Performance.

Front Plant Sci 2021 21;12:664636. Epub 2021 Apr 21.

Department of Chemical Ecology, Bielefeld University, Bielefeld, Germany.

The cuticle-covered surface forms the interface between plant parts, including fruits, and their environment. The physical and chemical properties of fruit surfaces profoundly influence plant-frugivore interactions by shaping the susceptibility and suitability of the host for the attacker. Grapevine (, Vitaceae) serves as one of the various host plants of the spotted wing drosophila, Matsumura (Diptera: Drosophilidae), which is invasive in several parts of the world and can cause major crop losses. Read More

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Biochemical evidence of epicuticular wax compounds involved in cotton-whitefly interaction.

PLoS One 2021 4;16(5):e0250902. Epub 2021 May 4.

Center of Excellence in Molecular Biology (CEMB), University of the Punjab, Lahore, Pakistan.

Sucking insects require a surface of plants on which the legs and the eggs of insects will adhere and to which insect mouthparts will access. The primary plant protection against insects is their surface property, which hinders the attachment of the insect's legs and eggs. The epicuticular waxes chemistry influences the fine structure of the cuticular surface. Read More

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Epicuticular Wax Rice Mutants Show Reduced Resistance to Rice Water Weevil (Coleoptera: Curculionidae) and Fall Armyworm (Lepidoptera: Noctuidae).

Environ Entomol 2021 08;50(4):948-957

Department of Entomology, Louisiana State University Agricultural Center, Baton Rouge, LA 70803, USA.

Plant structural traits can act as barriers for herbivore attachment, feeding, and oviposition. In particular, epicuticular waxes (EWs) on the aerial surfaces of many land plants offer protection from biotic and abiotic stresses. In rice (Oryza sativa L. Read More

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Lipidomic and transcriptomic analysis reveals reallocation of carbon flux from cuticular wax into plastid membrane lipids in a glossy "Newhall" navel orange mutant.

Hortic Res 2020 Apr 1;7(1):41. Epub 2020 Apr 1.

Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, 430070, Wuhan, China.

Both cuticle and membrane lipids play essential roles in quality maintenance and disease resistance in fresh fruits. Many reports have indicated the modification of alternative branch pathways in epicuticular wax mutants; however, the specific alterations concerning lipids have not been clarified thus far. Here, we conducted a comprehensive, time-resolved lipidomic, and transcriptomic analysis on the "Newhall" navel orange (WT) and its glossy mutant (MT) "Gannan No. Read More

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Effects of fluoride emission on the morphoanatomy of three plant species endemics to Brazil using passive biomonitoring.

Environ Sci Pollut Res Int 2021 Feb 26. Epub 2021 Feb 26.

Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Av. P.H. Rolfs, s/n, Campus Universitário, Vicosa, MG, 36570-900, Brazil.

Fluoride is the most phytotoxic atmospheric pollutant. The objective of this study was to evaluate the effects of fluoride emissions by an aluminum smelter on three plant species endemics to Brazil, located at Parque Estadual do Itacolomi (PEI). The monitored species were Byrsonima variabilis (Malpighiaceae), Myrceugenia alpigena (Myrtaceae), and Eremanthus erythropappus (Asteraceae), which were monitored during 9 months using passive biomonitoring at five different locations with different distances from the smelter. Read More

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February 2021

Developmental pattern of grapevine (Vitis vinifera L.) berry cuticular wax: Differentiation between epicuticular crystals and underlying wax.

PLoS One 2021 19;16(2):e0246693. Epub 2021 Feb 19.

State Institute for Viticulture, Freiburg, Germany.

The grapevine berry surface is covered by a cuticle consisting of cutin and various lipophilic wax compounds. The latter build the main barrier for transpirational water loss and protect the fruit against environmental factors e.g. Read More

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Impact of particulate matter on primary leaves of Vigna radiata (L.) R. Wilczek.

Ecotoxicol Environ Saf 2021 Apr 4;212:111965. Epub 2021 Feb 4.

Department of Environmental Engineering, University of Seoul, Seoul, Republic of Korea. Electronic address:

Particulate matter (PM) pollution is of great concern for human health and vegetation. In this study, we investigated the impact of PM on primary (unifoliate) leaves of Vigna radiata (L.) R. Read More

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The Surfaces of the L. (Carob) Leaflet: Insights from Physics and Chemistry.

Langmuir 2021 02 3;37(6):2011-2028. Epub 2021 Feb 3.

CQ-VR, University of Trás-os-Montes e Alto Douro, 5000-811 Vila Real, Portugal.

The production of superhydrophobic coatings inspired by the surface of plant leaves is a challenging goal. Such coatings hold a bright technological future in niche markets of the aeronautical, space, naval, building, automobile, and biomedical sectors. This work is focused on the adaxial (top) and abaxial (bottom) surfaces of the leaflet of the L. Read More

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February 2021

Plasticity of the Cuticular Transpiration Barrier in Response to Water Shortage and Resupply in : A Role of Cuticular Waxes.

Front Plant Sci 2020 11;11:600069. Epub 2021 Jan 11.

Henan Key Laboratory of Tea Plant Biology, College of Life Sciences, Xinyang Normal University, Xinyang, China.

The cuticle is regarded as a non-living tissue; it remains unknown whether the cuticle could be reversibly modified and what are the potential mechanisms. In this study, three tea germplasms (, , and ) were subjected to water deprivation followed by rehydration. The epicuticular waxes and intracuticular waxes from both leaf surfaces were quantified from the mature 5th leaf. Read More

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January 2021

Molecular, chemical, and physiological analyses of sorghum leaf wax under post-flowering drought stress.

Plant Physiol Biochem 2021 Feb 5;159:383-391. Epub 2021 Jan 5.

Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran. Electronic address:

Wax accumulation on the sorghum surface plays an important role in drought tolerance by preventing non-stomatal water loss. Thereby, the effect of post-flowering drought stress (PFDS) on the epicuticular wax (EW) amount, relative water content (RWC), chlorophyll, and grain yield in sorghum drought contrasting genotypes were investigated. The experiment was conducted as a split-plot based on randomized complete block design (RCBD) with two water treatments (normal watering and water holding after 50% flowering stage), and three genotypes (Kimia and KGS23 as drought-tolerant and Sepideh as drought-susceptible). Read More

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February 2021

Morpho-physiological and molecular characterization of drought tolerance traits in genotypes under drought stress.

Physiol Mol Biol Plants 2020 Dec 4;26(12):2339-2353. Epub 2020 Dec 4.

ICAR - Central Institute for Cotton Research (CICR), Nagpur, India.

Drought stress is one of the major abiotic stresses affecting lint yield and fibre quality in cotton. With increase in population, degrading natural resources and frequent drought occurrences, development of high yielding, drought tolerant cotton cultivars is critical for sustainable cotton production across countries. Six genotypes identified for drought tolerance, wider adaptability and better fibre quality traits were characterized for various morpho-physiological and biochemical characters and their molecular basis was investigated under drought stress. Read More

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December 2020

Slippery flowers as a mechanism of defence against nectar-thieving ants.

Ann Bot 2021 01;127(2):231-239

The Botanical Gardens, Graduate School of Science, The University of Tokyo, Bunkyo, Tokyo, Japan.

Background And Aims: The great diversity of floral characteristics among animal-pollinated plants is commonly understood to be the result of coevolutionary interactions between plants and pollinators. Floral antagonists, such as nectar thieves, also have the potential to exert an influence upon the selection of floral characteristics, but adaptation against floral antagonists has attracted comparatively little attention. We found that the corollas of hornet-pollinated Codonopsis lanceolata (Campanulaceae) and the tepals of bee-pollinated Fritillaria koidzumiana (Liliaceae) are slippery to nectar-thieving ants living in the plant's habitat; because the flowers of both species have exposed nectaries, slippery perianths may function as a defence against nectar-thieving ants. Read More

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January 2021

Phenotypic characterization of the glossy1 mutant and fine mapping of GLOSSY1 in common wheat (Triticum aestivum L.).

Theor Appl Genet 2021 Mar 6;134(3):835-847. Epub 2021 Jan 6.

State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China.

Key Message: A novel wax locus GLOSSY1 was finely mapped to an approximately 308.1-kbp genomic interval on chromosome 2DS of wheat. The epicuticular wax, the outermost layer of aerial organs, gives plants their bluish-white (glaucous) appearance. Read More

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