This page has only limited features, please log in for full access.

Unclaimed
Yuhong Zhang
Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, China

Basic Info

Basic Info is private.

Honors and Awards

The user has no records in this section


Career Timeline

The user has no records in this section.


Short Biography

The user biography is not available.
Following
Followers
Co Authors
The list of users this user is following is empty.
Following: 0 users

Feed

Journal article
Published: 01 February 2021 in Sustainability
Reads 0
Downloads 0

The efficacy of traditional control measures for the management of plant pathogens is decreasing, and the resistance of these pathogens to pesticides is increasing, which poses a serious threat to global food security. The exploration of novel and efficient management measures to combat plant disease is an urgent need at this time. In this study, fungal metabolites from three Trichoderma spp. (T. harzianum, T. virens and T. koningii) were prepared on three different growth media (STP, MOF and supermalt (SuM)). The fungal metabolites were tested in vitro and in vivo from March–April 2020 under greenhouse conditions in a pot experiment utilizing completely randomized design to test their management of the bacterial wilt disease caused by R. solanacearum in tomato plants. The effect of the fungal metabolites on bacterial cell morphology was also investigated through scanning electron microscopy (SEM) analysis. In vitro investigation showed that the fungal metabolites of T. harzianum obtained on the STP medium were the most effective in inhibiting in vitro bacterial growth and produced a 17.6 mm growth inhibition zone. SEM analysis confirms the rupture of the cell walls and cell membranes of the bacterium, along with the leakage of its cell contents. Generally, fungal metabolites obtained on an STP medium showed higher activity than those obtained on the other two media, and these metabolites were then evaluated in vivo according to three application times (0 days before transplantation (DBT), 4 DBT and 8 DBT) in a greenhouse trial to examine their ability to manage R. solanacearum in tomato plants. Consistent with in vitro results, the results from the greenhouse studies showed a level of higher anti-bacterial activity of T. harzianum metabolites than they did for the metabolites of other fungi, while among the three application times, the longest time (8 DBT) was more effective in controlling bacterial wilt disease in tomato plants. Metabolites of T. harzianum applied at 8 DBT caused the maximum decrease in soil bacterial population (1.526 log cfu/g), resulting in the lowest level of disease severity (area under disease progressive curve (AUDPC) value: 400), and maximum plant freshness (with a resulting biomass of 36.7 g, a root length of 18.3 cm and a plant height of 33.0 cm). It can be concluded that T. harzianum metabolites obtained on an STP medium, when applied after 8 DBT, can suppress soil bacterial population and enhance plant growth, and thus can be used as a safe, environmentally-conscious and consumer-friendly approach to managing bacterial wilt disease in tomato plants and possibly other crops.

ACS Style

Yancui Guo; Zhenyu Fan; Xiong Yi; Yuhong Zhang; Raja Khan; Zhiqiang Zhou. Sustainable Management of Soil-Borne Bacterium Ralstonia solanacearum In Vitro and In Vivo through Fungal Metabolites of Different Trichoderma spp. Sustainability 2021, 13, 1491 .

AMA Style

Yancui Guo, Zhenyu Fan, Xiong Yi, Yuhong Zhang, Raja Khan, Zhiqiang Zhou. Sustainable Management of Soil-Borne Bacterium Ralstonia solanacearum In Vitro and In Vivo through Fungal Metabolites of Different Trichoderma spp. Sustainability. 2021; 13 (3):1491.

Chicago/Turabian Style

Yancui Guo; Zhenyu Fan; Xiong Yi; Yuhong Zhang; Raja Khan; Zhiqiang Zhou. 2021. "Sustainable Management of Soil-Borne Bacterium Ralstonia solanacearum In Vitro and In Vivo through Fungal Metabolites of Different Trichoderma spp." Sustainability 13, no. 3: 1491.

Journal article
Published: 22 December 2015 in Journal of Forestry Research
Reads 0
Downloads 0

Palmatine is a valuable ingredient in Chinese medicine that is produced by Phellodendron amurense Rupr. The contents of palmatine content in root bark, trunk bark, perennial branch bark, annual branches, and leaves of the trees with different ages and geographies in Northeast China were measured by high-performance liquid chromatography. The contents of palmatine in the barks of root, trunk, and perennial branch were significantly higher than those in annual branches and leaves. The contents of palmatine in trunk bark and root bark from Lesser Khingan Mountains increased with age, which is significantly opposite to other three vegetation types. The contents of palmatine in perennial branch bark, annual bark and leaves had no significant regularity. Moreover, the contents of palmatine in samples of root bark, trunk bark, perennial branch bark and annual bark varied significantly with latitude. The nature populations of P. amurense growing at low latitude contained significantly more palmatine than those growing at high latitude. These results provide a scientific basis for the reasonable cultivation and efficient utilization of P. amurense.

ACS Style

Minglong Sun; Lijiao Xu; Yingli Peng; Tong Liu; Yuhong Zhang; Zhiqiang Zhou. Multiscale analysis of the contents of palmatine in the Nature populations of Phellodendron amurense in Northeast China. Journal of Forestry Research 2015, 27, 265 -272.

AMA Style

Minglong Sun, Lijiao Xu, Yingli Peng, Tong Liu, Yuhong Zhang, Zhiqiang Zhou. Multiscale analysis of the contents of palmatine in the Nature populations of Phellodendron amurense in Northeast China. Journal of Forestry Research. 2015; 27 (2):265-272.

Chicago/Turabian Style

Minglong Sun; Lijiao Xu; Yingli Peng; Tong Liu; Yuhong Zhang; Zhiqiang Zhou. 2015. "Multiscale analysis of the contents of palmatine in the Nature populations of Phellodendron amurense in Northeast China." Journal of Forestry Research 27, no. 2: 265-272.

Journal article
Published: 12 November 2014 in Scandinavian Journal of Forest Research
Reads 0
Downloads 0
ACS Style

Yuhong Zhang; Lijiao Xu; Jingjun Qiu; Minglong Sun; Chunmei Xia; Zhiqiang Zhou; Tong Liu. Provenance variations in berberine content of Phellodendron amurense , a rare and endangered medicinal plant grown in Northeast China. Scandinavian Journal of Forest Research 2014, 29, 725 -733.

AMA Style

Yuhong Zhang, Lijiao Xu, Jingjun Qiu, Minglong Sun, Chunmei Xia, Zhiqiang Zhou, Tong Liu. Provenance variations in berberine content of Phellodendron amurense , a rare and endangered medicinal plant grown in Northeast China. Scandinavian Journal of Forest Research. 2014; 29 (8):725-733.

Chicago/Turabian Style

Yuhong Zhang; Lijiao Xu; Jingjun Qiu; Minglong Sun; Chunmei Xia; Zhiqiang Zhou; Tong Liu. 2014. "Provenance variations in berberine content of Phellodendron amurense , a rare and endangered medicinal plant grown in Northeast China." Scandinavian Journal of Forest Research 29, no. 8: 725-733.

Journal article
Published: 01 July 2012 in Guang pu xue yu guang pu fen xi = Guang pu
Reads 0
Downloads 0
ACS Style

Ming-Jia Liu; Zhi-Qiang Zhou; Yuan-Gang Zu; Yu-Hong Zhang. [Determination of six metal elements in animal samples by flame atomic absorption spectrometry with wet digestion]. Guang pu xue yu guang pu fen xi = Guang pu 2012, 32, 1 .

AMA Style

Ming-Jia Liu, Zhi-Qiang Zhou, Yuan-Gang Zu, Yu-Hong Zhang. [Determination of six metal elements in animal samples by flame atomic absorption spectrometry with wet digestion]. Guang pu xue yu guang pu fen xi = Guang pu. 2012; 32 (7):1.

Chicago/Turabian Style

Ming-Jia Liu; Zhi-Qiang Zhou; Yuan-Gang Zu; Yu-Hong Zhang. 2012. "[Determination of six metal elements in animal samples by flame atomic absorption spectrometry with wet digestion]." Guang pu xue yu guang pu fen xi = Guang pu 32, no. 7: 1.