Hedychium viridibracteatum X.Hu, a new species from Guangxi Autonomous Region, South China

Xiu, Hu; Huang, Jiaqi; Tan, Jia-Chuan; Yong-qingWu,; Juan, Carlos

doi:10.3897/phytokeys.110.28710

Cited by 4 publications

(3 citation statements)

References 7 publications

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“…Hedychium species as proved to be a very rich genus that can still have a lot to offer to the scientific community. Moreover, the discovery in recent years of four new Hedychium species (i.e., Hedychium chingmeianum N.Odyuo and D.K.Roy [128], Hedychium putaoense Y.H.Tan and H.B.Ding [129], Hedychium viridibracteatum X.Hu [130] and Hedychium ziroense V.Gowda and Ashokan [131], may bring new compounds with pharmaceutical potential to the equation. Funding: This research was funded by project MACBIOPEST (MAC2/1.1a/289), program Interreg MAC 2014-2020 co-financed by DRCT (Azores Regional Government), supporting W.R. Tavares's grant, as well as by FCT-Fundação para a Ciência e Tecnologia, the European Union, QREN, FEDER, and COMPETE, through funding the cE3c center (UIDB/00329/2020) and the LAQV-REQUIMTE (UIDB/50006/2020).…”

Section: Discussionmentioning

confidence: 99%

Uncharted Source of Medicinal Products: The Case of the Hedychium Genus

2020

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A current research topic of great interest is the study of the therapeutic properties of plants and of their bioactive secondary metabolites. Plants have been used to treat all types of health problems from allergies to cancer, in addition to their use in the perfumery industry and as food. Hedychium species are among those plants used in folk medicine in several countries and several works have been reported to verify if and how effectively these plants exert the effects reported in folk medicine, studying their essential oils, extracts and pure secondary metabolites. Hedychium coronarium and Hedychium spicatum are the most studied species. Interesting compounds have been identified like coronarin D, which possesses antibacterial, antifungal and antitumor activities, as well as isocoronarin D, linalool and villosin that exhibit better cytotoxicity towards tumor cell lines than the reference compounds used, with villosin not affecting the non-tumor cell line. Linalool and α-pinene are the most active compounds found in Hedychium essential oils, while β-pinene is identified as the most widespread compound, being reported in 12 different Hedychium species. Since only some Hedychium species have been investigated, this review hopes to shed some light on the uncharted territory that is the Hedychium genus.

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Section: Discussionmentioning

confidence: 99%

Uncharted Source of Medicinal Products: The Case of the Hedychium Genus

2020

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“…OCTimages can clearly reveal each layer of the retina's structure, timely detect early small lesions, and provide a standard for the etinal diseasesdiagnosis [16][17]. The current retinal layer segmentation technology based on image block classification may bring redundant information when selecting image blocks, and the segmentation process may lead to the fitness of global information.…”

Section: A Image Segmentation Methods Based On Improved Gs Algorithmmentioning

confidence: 99%

Ophthalmic OCT Segmentation Method Based on RCNN-Attention

Li,

Cong,

2023

IEEE Access

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As the growth of science and technology, ophthalmic optical coherence tomography (OCT) image segmentation plays a key role in ophthalmic diagnosis. To improve the accuracy of segmentation, the experiment proposed an ophthalmic OCT segmentation method that combines the recurrent residual network (ResNet) and the attention mechanism (AM). In the process, the graph search (GS) algorithm is first used to perform fine segmentation operations on the OCT image, then a recurrent residual convolution network is introduced to correct the phenomenon of image drill and rapid degradation, and finally theAM is integrated to improve the utilization of the global information of the image and achieve accurate segmentation of the image. The results show that the research methodis tested on different data sets, and the research method shows the largest fitness value. There are four models, research methods, medical image segmentation technologies based on full-size connection Unet 3+(UNet 3plus),recurrent residual convolutional neural network (ResNet-RCNN) and deep learning and graphicssearch(DL-GS). The areas under the ROC curve of the four models of the patient retinal layer boundary segmentation method searching for automatic segmentation technology are 0.956, 0.911, 0.897 and 0.856 respectively. When the precision rate is 0.900, the recall rates of the four models corresponding to the research method, Unet 3+, ResNet-RCNN and DL-GS are 0.801, 0.663, 0.574 and 0.438 respectively. At the same time, the system can reach a stable state within 0.501s of the running time of the research method. When applying the research method to the segmentation of practical visual ophthalmicOCTimages,the outcomes are closer to the results of artificial expert annotation. Based on the above, the research method's segmentation accuracy and system stability are better, providing a certain reference for the optimization of image segmentation technology in the medical field.

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“…The genus comprises about 50 species (Wu & Larsen 2000), of which 35 are known from China (Wu & Larsen 2000, Yu et al . 2010, Hu & Liu 2010a, 2010b, Picheansoonthon & Wongsuwan 2013, Hu et al 2018, Bai et al 2021).…”

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confidence: 99%

Hedychium wangmoense (Zingiberaceae), a New Species from Southwest Guizhou, China

Mou

Zhong

Xiu

et al. 2023

Annales Botanici Fennici

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Hedychium wangmoense F.J. Mou & X. Hu (Zingiberaceae), a new species from southwest Guizhou Province, China, is described and illustrated, including the information on its phenology, distribution, habitat, and conservation status. Hedychium wangmoense is morphologically most similar to H. forrestii by having involute bracts, large labella and wide lateral staminodes, but can be distinguished from it by its orange-pink and faintly fragrant flowers (vs. white and fragrant flowers), longer corolla tubes, wider lateral staminodes, larger labella, longer stamens, as well as glabrous bracts (vs. pilose bracts). A key to species of Hedychium in China is also provided. Species of Hedychium (Zingiberaceae) are distributed mainly from eastern Himalayas to south China and southeast Asia. The genus comprises about 50 species (

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Hedychium viridibracteatum X.Hu, a new species from Guangxi Autonomous Region, South China

Cited by 4 publications

References 7 publications

Uncharted Source of Medicinal Products: The Case of the Hedychium Genus

Uncharted Source of Medicinal Products: The Case of the Hedychium Genus

Ophthalmic OCT Segmentation Method Based on RCNN-Attention

Hedychium wangmoense (Zingiberaceae), a New Species from Southwest Guizhou, China

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