Publications by authors named "Meijiao Hu"

Article Synopsis
  • - The study investigates how hydrogen sulfide (HS) affects browning in postharvest litchi, which hampers the litchi industry significantly.
  • - Results show that HS treatment delays pericarp browning, preserves cell membrane integrity, and enhances energy and sugar metabolism, which includes increased enzyme activities and sugar levels in the fruit.
  • - The findings suggest that using exogenous HS is an effective method to improve the quality and shelf life of litchi by boosting antioxidant activity and energy supply.
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In the post-harvest phase, fruit is inexorably subjected to extrinsic stressors that expedite energy expenditure and truncate the storage lifespan. The present study endeavors to elucidate the response strategies of litchi to the alterations of energy state caused by 2,4-Dinitrophenol (DNP) treatment through energy metabolism and sugar metabolism. It was observed that the DNP treatment reduced the energy state of the fruit, exacerbated membrane damage and triggered rapid browning in the pericarp after 24 h of storage.

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Article Synopsis
  • Papaya (Carica papaya L.) is valued for its economics and nutrition but is affected by postharvest diseases like anthracnose caused by Colletotrichum spp., leading to significant fruit rot during storage.
  • In July 2022, papaya fruits exhibiting anthracnose symptoms were collected in Hainan Province, China, with a rot incidence of 6.3%, showing initial lesions that progressed to dark, sunken spots.
  • The study involved isolating 12 fungal strains from infected tissues, analyzing their morphological characteristics, and performing molecular tests to identify the species as Colletotrichum gigasporum, confirming their pathogenicity through DNA sequencing.
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Dalbergia odorifera (Family: Fabaceae) is a national second-grade protected tree in China with high medicinal and economic value (Zhao et al., 2020). In July, 2022, a leaves spot disease on D.

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belonging to the family Combretaceae, spreads in tropical and subtropical coastal areas. It mainly serves as shading and decorative tree (Anand et al, 2015). It is planted as roadside tree in Southern China.

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Mango (Mangifera indica L.), belongs to the family Anacardiacea, and is one of the most popular tropical fruits in the world. Stem-end rot is a major postharvest disease of mango fruit, causing severe losses during storage in China (Chen et al.

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Mango is one of the most economically important fruit; however, the gene regulatory mechanism associated with ripening and quality changes during storage remains largely unclear. This study explored the relationship between transcriptome changes and postharvest mango quality. Fruit quality patterns and volatile components were obtained using headspace gas chromatography and ion-mobility spectrometry (HS-GC-IMS).

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Pineapple fruits are usually harvested at different stages of maturity, based on consumer demands. The stage of maturity significantly affects the storage tolerance due to alterations in the cellular lipid homeostasis in the fruits. The characteristic abundance of metabolites and fatty acids (FAs) can provide vital information giving insight into the cellular lipid changes that occur during the ripening process in the fruits.

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Litchi (Litchi chinensis Sonn.) is an indigenous tropical and subtropical fruit in Southern China with an attractive appearance, delicious taste, and good nutritional value (Jiang et al. 2003).

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Litchis are tasty fruit with economic importance. However, the extreme susceptibility of harvested litchis to litchi downy blight caused by Peronophythora litchii leads to compromised quality. This study aimed to study the effects of melatonin on postharvest resistance to P.

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Ipomoea pes-caprae plays an important role in protecting the tropical and subtropical coastal beach of the world. In 2018, a leaf spot was observed on I. pes-caprae in Xisha islands of China, 13.

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Erythrina crista-galli L. (Fabaceae) is a popular ornamental plant in tropical and subtropical regions of South Asia. In October 2019, anthracnose-like lesions were observed on the leaves of E.

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Melatonin (MLT) is a vital signaling molecule that regulates multiple physiological processes in higher plants. In the current study, the role of MLT in regulating chilling tolerance and its possible mechanisms in litchi fruit during storage at ambient temperatures after its removal from refrigeration was investigated. The results show that the application of MLT (400 μM, dipping for 20 min) to 'Baitangying' litchi fruit effectively delayed the development of chilling injury (CI) while inhibiting pericarp discoloration, as indicated by higher chromacity values (, , ) and anthocyanin levels.

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A novel virus, tentatively named "areca palm necrotic spindle-spot virus" (ANSSV), was identified in Areca catechu L. in Hainan, China, and its complete genomic sequence was determined. Its positive-sense single-stranded RNA genome is comprised of 9,437 nucleotides (nt), excluding the poly (A) tail, and contains one large open reading frame encoding a polyprotein of 3,019 amino acids (aa).

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Melatonin acts as a crucial signaling and antioxidant molecule with multiple physiological functions in organisms. To explore effects of exogenous melatonin on postharvest browning and its possible mechanisms in litchi fruit, 'Ziniangxi' litchi fruits were treated with an aqueous solution of melatonin at 0.4 mM and then stored at 25 °C for 8 days.

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Fresh-cut (FC) red pitaya fruit were treated with 5ga.i.l apple polyphenols (APP) and then stored at 20°C for up to 4days to evaluate the effects on attributes.

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In this study, mango fruit were pre-treated with low-temperature conditioning (LTC) at 12°C for 24h, followed by refrigeration at 5°C for 25days before removal to ambient temperature (25°C) to investigate the effects and possible mechanisms of LTC on chilling injury (CI). The results showed that LTC effectively suppressed the development of CI in mango fruit, accelerated softening, and increased the soluble solids and proline content. Furthermore, LTC reduced electrolyte leakage, and levels of malondialdehyde, O and HO, maintaining membrane integrity.

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A new species of Microdochium was identified as the causal agent of leaf blight of seashore paspalum (Paspalum vaginatum), a turf grass widely used in tropical and subtropical golf courses. In 2010 foliar necrosis and canopy thinning were observed on 11 surveyed golf courses in Hainan province, China, especially on fairways and putting greens. The infected leaves initially appeared water-soaked and dark green, rapidly faded to yellow or became chlorotic and quickly died, resulting in a sparse appearance in infected areas, leading to the disease name "sparse leaf patch.

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