Facile Synthesis of Cu-Doped ZnO Nanoparticles for the Enhanced Photocatalytic Disinfection of Bacteria and Fungi.

In this study, Cu-doped ZnO was prepared via the facile one-pot solvothermal approach. The structure and composition of the synthesized samples were characterized by XRD (X-ray diffraction), TEM (transmission electron microscopy), and XPS (X-ray photoelectron spectroscopy) analyses, revealing that the synthesized samples consisted of Cu-doped ZnO nanoparticles. Ultraviolet-visible (UV-vis) spectroscopy analysis showed that Cu-doping significantly improves the visible light absorption properties of ZnO.

First Report of Leaf Spot on Cherry Tomatoes Caused by Exserohilum rostratum in Hainan Province, China.

Cherry tomatoes (Lycopersicon esculentum var. cerasiforme) is the main tomato variety planted in Hainan Province, China and is prized for its nutritional value and sweet taste (Zheng et al. 2020).

Permafrost degradation is accelerating beneath the bottom of Yanhu Lake in the Hoh Xil, Qinghai-Tibet Plateau.

Lakes on the Qinghai-Tibet Plateau (QTP) have notably expanded over the past 20 years. Due to lake water level rise and lake area expansion, the permafrost surrounding these lakes is increasingly becoming submerged by lake water. However, the change process of submerged permafrost remains unclear, which is not conducive to further analyzing the environmental effects of permafrost change.

First Report of Diaporthe longicolla Causing Leaf Spot on Kalanchoe pinnata in China.

Kalanchoe pinnata (Lam.) Pers. [syn.

Risk assessment of potential thaw settlement hazard in the permafrost regions of Qinghai-Tibet Plateau.

Climate warming could exacerbate the occurrence of thaw settlement hazard in the permafrost regions of the Qinghai-Tibet Plateau (QTP), which would threaten the stability of engineering infrastructure in cold regions. The risk associated with permafrost settlement, valuable for the regional sustainable development, remains poorly assessed or understood on the QTP. In this study, three common Geo-hazard indices were used to assess the settlement risks in the permafrost regions of the QTP, including the settlement index, the risk zonation index, and the allowable bearing capacity index.

First Report of Colletotrichum gloeosporioides Causing Anthracnose on Canna edulis Ker in China.

Canna edulis Ker has been an important economic plant in southern China. The tuberous stems are the most valued plant part and in the past were routinely used as animal feeds. In June 2019, leaf spot disease were detected on C.

First Record of Leaf Spot Disease on Costus speciosus Caused by Nigrospora oryzae in Hainan, China.

Costus speciosus (Koen.) Smith has been an important medicinal agent in the various traditional and folk systems of medicine in southern China. In September 2018, leaf spot disease was detected on C.

Soil organic carbon and total nitrogen pools in permafrost zones of the Qinghai-Tibetan Plateau.

There are several publications related to the soil organic carbon (SOC) on the Qinghai-Tibetan Plateau (QTP). However, most of these reports were from different parts of the plateau with various sampling depth. Here, we present the results from a systematic sampling and analysis of 200 soil pits.