Article
Biochemistry & Molecular Biology
Wangdan Xiong, Longxin Liao, Yu Ni, Hanchi Gao, Jianfeng Yang, Yanjun Guo
Summary: Cuticular waxes can protect sorghum plants from anthracnose infection by inhibiting fungal growth and regulating physiological and gene expression responses. Understanding the role of epicuticular wax in defending plants from pathogens can benefit sorghum resistance breeding.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Agronomy
Michele Faralli, Minuka Weerasinghe, Gee-Sian Leung, Ray Marriott, Melville Miles, Peter Kettlewell
Summary: Excessive transpiration of water from plant leaves during droughts can harm crop growth. This research aimed to extract leaf wax from fresh produce processing waste and evaluate its effectiveness as an antitranspirant. The extracted wax was compared with a commercially-available terpene antitranspirant, and it showed potential in reducing stomatal conductance and water use, although more research is needed.
Article
Plant Sciences
Boaz Negin, Lior Shachar, Sagit Meir, Claudio C. Ramirez, A. Rami Horowitz, Georg Jander, Asaph Aharoni
Summary: Despite decades of research on epicuticular wax metabolism in plants, the role of these metabolites in plant-herbivore interactions remains unclear. This study found that knockout mutations in wax metabolism genes of Nicotiana glauca led to changes in wax composition, affecting interactions with insects and snails. Different herbivore classes and species showed varied responses to wax components, suggesting the specific effects of different surface wax components are shaped by co-evolution.
PLANT CELL AND ENVIRONMENT
(2023)
Article
Chemistry, Multidisciplinary
Karina Khambatta, Ashley Hollings, Georgina Sauzier, Lilian M. V. P. Sanglard, Annaleise R. Klein, Mark J. Tobin, Jitraporn Vongsvivut, Mark R. Gibberd, Alan D. Payne, Fatima Naim, Mark J. Hackett
Summary: The analysis of the epicuticular wax layer on plant leaves using FTIR reflectance spectroscopic imaging provides a non-destructive in situ method to investigate the distribution of wax in plants, offering insights into how plants respond to growth, disease, and environmental stressors.
Article
Chemistry, Applied
Yunqian Zou, Haoliang Wan, Hongbin Yang, Rangwei Xu, Yonggang Xiang, Yunjiang Cheng
Summary: Natural cuticular wax at high concentrations has better water retention performance for fruit, and the aliphatic aldehydes with C24 and C26 chain length show the greatest impact on water loss rate.
Article
Agronomy
Mingyi Yang, Zisheng Luo, Dong Li, Chao Ma, Li Li
Summary: The removal of epicuticular wax from table grapes resulted in weight loss, softening, and browning during storage. Transcriptomic analysis revealed the up-regulation and down-regulation of numerous genes, particularly those involved in polyphenols biosynthesis, cell wall metabolism, and photosynthesis. The up-regulated expression of chlorophyll degradation genes contributed to visible browning, while the observed cell wall collapse and increased pectinesterase expression explained fruit softening. These findings provide novel insights into the role of epicuticular wax in maintaining the quality of table grapes, supported by transcriptomic evidence.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2023)
Article
Agronomy
Kamal Khadka, Andrew J. Burt, Hugh J. Earl, Manish N. Raizada, Alireza Navabi
Summary: Ground and aerial-based high throughput phenotyping platforms were used to evaluate chlorophyll-related traits in a panel of Nepali spring wheat genotypes. The study found a significant positive association between waxiness and chlorophyll estimates, while NDVI showed a negative relationship with waxiness and grain yield.
Article
Environmental Sciences
Nisha Shabnam, Joosung Oh, Sangwon Park, Hyunook Kim
Summary: The study found that exposure to PM led to the accumulation of various metal(loid)s on mung bean leaves, affecting leaf growth and surface structure, as well as decreasing chlorophyll and sugar content. These findings highlight the negative impact of PM on plant growth and the potential human health risks associated with dietary exposure.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Food Science & Technology
Yanqing Yang, Xiaolin Ren, Hansheng Gong, Hua Huang, Shuyang Sun, Ping Wang, Juan Zhao, Xinguang Fan, Aidi Zhang
Summary: The accumulation of oleate esters in the surface waxes of apples can lead to a decrease in their thermodynamic properties, causing the wax to become greasy. These results suggest that esters may act similarly to plasticizers in polymer in increasing the fluidity of apple waxes.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Anatomy & Morphology
Deibson Pereira Belo, Maria Teresa Buril, Edinalva Alves Vital dos Santos, Emilia Arruda, Rafael Batista Louzada
Summary: Morphoanatomical studies were conducted on Jacquemontia evolvuloides to determine its taxonomic groupings. The analysis of leaf and stem morphology led to the identification of five morphotypes within 22 populations. Diagnostic characters such as paracytic stomata, laticiferous canals, and stellate trichomes were observed. Additionally, new findings on epicuticular waxes, palisade parenchyma-like layer, glandular trichome classifications, and new types of stomata were reported for Jacquemontia for the first time. These results provide valuable insights into the classification and taxonomy of Jacquemontia.
MICROSCOPY RESEARCH AND TECHNIQUE
(2023)
Article
Plant Sciences
Johanna Baales, Viktoria V. Zeisler-Diehl, Yaron Malkowsky, Lukas Schreiber
Summary: Time-dependent contact angle measurements on barley leaf surfaces can quantify the diffusion kinetics of surfactants into the leaves. Surfactants applied at low coverages between 1 and 10μg/cm2 are rapidly taken up by the leaves, leading to re-wettability of the leaf surface.
Article
Green & Sustainable Science & Technology
Shiboram Banerjee, Arnab Banerjee, Debnath Palit
Summary: The present study aimed to characterize air pollution indicators and identify pollution tolerant plant species in the Durgapur Industrial region of West Bengal, India. The study focused on two plant species, Ficus benghalensis (FIBE) and Terminalia arjuna (TEAR), and compared pollution levels between a control site (S1) and a severely polluted site (S2) in the region. The study found that air pollution was higher around industrial clusters in the city, with the peri-urban areas being comparatively less polluted. Scanning Electron Microscopy (SEM) was used to analyze the deposition patterns and surface architectural patterns of epicuticular wax of the plant species. Thirteen major variables were identified as the most influenced ones under air pollution stress through Principal Component Analysis (PCA). This study can provide guidance for forest managers in analyzing pollution-induced variables of model tree species and developing effective green belts to combat air pollution in urban industrial regions.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Environmental Sciences
Yuqing Ye, Elizabeth Noriega Landa, Jesus M. Cantu, Jose A. Hernandez-Viezcas, Aruna Narayanan Nair, Wen-Yee Lee, Sreeprasad T. Sreenivasan, Jorge L. Gardea-Torresdey
Summary: The objective of this study was to evaluate the effects of manganese-doped graphene quantum dots on Capsicum annuum L. grown under salt stress. The results showed that the quantum dots offset the reduction in fruit production caused by salt stress, but also disturbed the leaf epicuticular wax profile. Additionally, the content of magnesium and zinc indicated increased photosynthesis activity in the leaves.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Plant Sciences
Anne-Kristin Lenz, Ulrike Bauer, Graeme D. Ruxton
Summary: Water shedding from leaves is a complex process influenced by multiple factors. The drop retention angle is argued to be a more meaningful parameter for measuring the water-shedding capacity of leaves. Current understanding of the mechanics of water shedding comes from laboratory experiments, while field studies have been largely correlational. The authors highlight the importance of applying laboratory methods to real-world scenarios for a comprehensive understanding of leaf water shedding.
JOURNAL OF EXPERIMENTAL BOTANY
(2022)
Article
Agronomy
Mingyi Yang, Zisheng Luo, Sunan Gao, Tarun Belwal, Lei Wang, Ming Qi, Zhaojun Ban, Bin Wu, Fengzhong Wang, Li Li
Summary: This study investigated the compositional, morphological and functional features of cuticular wax in grape berries, and found that the removal of epicuticular wax can affect the quality of grapes. This provides a theoretical basis for further application of fruit wax.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2021)
