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Quercus gilva , an evergreen tree species in Quercus section Cyclobalanopsis , is an ecologically and economically valuable species in subtropical regions of East Asia. Predicting the impact of climate change on potential distribution of Q. gilva can provide a scientific basis for the conservation and utilization of its genetic resources, as well as for afforestation. In this study, 74 distribution records of Q. gilva and nine climate variables were obtained after data collection and processing. Current climate data downloaded from WorldClim and future climate data predicted by four future climate scenarios (2040s SSP1-2.6, 2040s SSP5-8.5, 2060s SSP1-2.6, and 2060s SSP5-8.5) mainly based on greenhouse gases emissions of distribution sites were used in MaxEnt model with optimized parameters to predict distribution dynamics of Q. gilva and its response to climate change. The results showed that the predicted current distribution was consistent with natural distribution of Q. gilva , which was mainly located in Hunan, Jiangxi, Zhejiang, Fujian, Guizhou, and Taiwan provinces of China, as well as Japan and Jeju Island of South Korea. Under current climate conditions, precipitation factors played a more significant role than temperature factors on distribution of Q. gilva , and precipitation of driest quarter (BIO17) is the most important restriction factor for its current distribution (contribution rate of 57.35%). Under future climate conditions, mean temperature of driest quarter (BIO9) was the essential climate factor affecting future change in potential distribution of Q. gilva. As the degree of climatic anomaly increased in the future, the total area of predicted distribution of Q. gilva showed a shrinking trend (decreased by 12.24%–45.21%) and Q. gilva would migrate to high altitudes and latitudes. The research results illustrated potential distribution range and suitable climate conditions of Q. gilva , which can provide essential theoretical references for the conservation, development, and utilization of Q. gilva and other related species. • Future climate data predicted based on GHGs emission were used in SDM of Q. gilva. • BIO17 was the most important restriction factor for Q. gilva 's current distribution. • BIO9 would be the essential factor affecting Q. gilva 's future potential distribution change. • As the degree of climatic anomaly increases, Q. gilva 's distribution tends to shrink. • Northward migration of Q. gilva was accompanied by a shift to the south in 2040s. [ABSTRACT FROM AUTHOR]

Ginkgo biloba seeds contain a variety of nutritional and functional components and have high edible and medicinal effects, making them one of the famous food and medicine homologous materials. But G. biloba seeds also contain some harmful ingredients, which have severely restricted the healthy development of the G. biloba seed food industry. Overconsumption of G. biloba seeds can lead to food poisoning. Ginkgotoxin (4′-O-methylpyridoxine, MPN) and ginkgotoxin-5′-glucoside (4′-O-methylpyridoxine-5′-glucoside, MPNG) are the main toxic ingredients of G. biloba seeds and have been studied intensively. This work tries to comprehensively summarize the research status of MPN and MPNG (collectively known as ginkgotoxins), building the scientific basis for further research on ginkgotoxins, with the aspiration to promote the healthy development of the G. biloba seed food industry. In this review, the isolation, identification, extraction, and detection of ginkgotoxins are first introduced. Then, the synthesis and distribution of ginkgotoxins are described and discussed. Finally, the methods used for removing ginkgotoxins and the effects of processing on the ginkgotoxins are analyzed and compared. Reducing ginkgotoxins while preserving the nutritional and functional components of G. biloba seed foods will undoubtedly be a pressing issue in further research. [Display omitted] • Ginkgo biloba seeds contain a variety of nutritional and functional components. • Overconsumption of Ginkgo biloba seeds leads to poisoning. • Ginkgotoxin and ginkgotoxin-5′-glucoside is responsible for Ginkgo biloba seeds poisoning. • MPN and MPNG can be completely removed by some physical and biotechnological methods. • Food processing techniques can only reduce toxicity to a limited extent. [ABSTRACT FROM AUTHOR]