Article
Plant Sciences
Yun Lian, Ming Yuan, He Wei, Jinying Li, Binke Ding, Jinshe Wang, Weiguo Lu, Georg Koch
Summary: The soybean cyst nematode (SCN, Heterodera glycines, HG) is a major pest that causes significant damage to soybean production worldwide by impairing root development. Breeding SCN-resistant cultivars is crucial for maintaining harvests without harming the environment. In this study, 12 soybean cultivars were evaluated for their resistance markers and shown to have resistance against multiple SCN races, indicating their potential as donor parents in breeding programs and their contribution to sustainable agriculture management by reducing SCN field populations.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Chelsea J. Harbach, Gregory L. Tylka
Summary: Greenhouse experiments showed that cover crops did not significantly decrease the population densities of soybean cyst nematode. However, the growth of multiple cover crops had adverse residual effects on the reproduction of nematodes on susceptible soybeans.
Article
Plant Sciences
Manhong Sun, Senyu Chen, James E. Kurle
Summary: Nutritional deficiency, especially iron deficiency, and soybean cyst nematode can negatively affect soybean yield. This study examined the interactive effects of arbuscular mycorrhizal fungi (MF), soybean cyst nematode (SCN), and soil pH on soybean growth. The results showed that SCN reduced leaf chlorophyll content (LCC), especially in high-pH soil. MF increased LCC in low-pH soil and high-pH soil without SCN, but reduced LCC in high-SCN and high-pH soil conditions. SCN and MF also affected soybean shoot weight, with MF increasing shoot weight in certain pH conditions. Overall, this study highlights the importance of considering the interactions between SCN, MF, and soil pH in managing soybean growth.
PHYTOBIOMES JOURNAL
(2022)
Article
Agriculture, Multidisciplinary
Zhi Liu, Liu-ping Zhang, Jie Zhao, Jin-zhuo Jian, Huan Peng, Wen-kun Huang, Ling-an Kong, De-liang Peng, Shi-ming Liu
Summary: Yeast two-hybrid screening and subsequent experimental validation revealed that the heat shock protein HgHSP70 interacts with GmSHMT08, suggesting its potential involvement in the resistance mechanism mediated by GmSHMT08 against SCN H. glycines.
JOURNAL OF INTEGRATIVE AGRICULTURE
(2022)
Article
Agronomy
Yuanyuan Zhou, Jingsheng Chen, Xiaofeng Zhu, Yuanyuan Wang, Xiaoyu Liu, Haiyan Fan, Yuxi Duan, Lijie Chen
Summary: The study demonstrated that B. megaterium Sneb207 inhibits the invasion, development, and reproduction of SCN by inducing systemic resistance, significantly impacting soybean growth and SCN numbers.
PEST MANAGEMENT SCIENCE
(2021)
Article
Biotechnology & Applied Microbiology
Deepak Haarith, Dong-gyu Kim, Senyu Chen, Kathryn E. Bushley
Summary: This study evaluated 20 candidate biological control organisms for soybean cyst nematode (SCN) and identified promising candidates that are more effective than existing products on the market.
BIOLOGICAL CONTROL
(2021)
Article
Multidisciplinary Sciences
Kosuke Shimizu, Ryota Akiyama, Yuya Okamura, Chihiro Ogawa, Yuki Masuda, Itaru Sakata, Bunta Watanabe, Yukihiro Sugimoto, Atsuhiko Kushida, Keiji Tanino, Masaharu Mizutani
Summary: The potato cyst nematode (PCN) is a significant worldwide crop pest causing extensive crop losses. By studying host-derived molecules known as hatching factors (HFs), researchers have discovered a HF called solanoeclepin B (SEB) from potato and tomato root exudates. They found that SEB is biosynthesized in the plant and converted to the most active HF for PCN, solanoeclepin A (SEA), outside the plant by biotic agents. Furthermore, the identification of SEB biosynthetic genes in tomato and their disruption resulted in a decrease in hatch-stimulating activity for PCN. These findings have practical implications for breeding crops with lower risk of PCN infection.
Article
Plant Sciences
Yun Lian, Georg Koch, Dexin Bo, Jinshe Wang, Henry T. Nguyen, Chun Li, Weiguo Lu
Summary: The continuous evolution and spread of virulent forms of soybean cyst nematode (SCN) pose a serious threat to soybean production worldwide, including China. In this study, we conducted a comprehensive analysis of the spread and spatial distribution of SCN in China, and identified spreading patterns and genetic relatedness among populations. We also highlighted the need for accelerated SCN resistance breeding, increased planting of resistant cultivars, and support for farmers to implement wider crop rotation for sustainable soybean production in China.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Nawei Qi, Jichen Yan, Piao Lei, Xiaofeng Zhu, Xiaoyu Liu, Yuanhu Xuan, Haiyan Fan, Yuanyuan Wang, Lijie Chen, Yuxi Duan
Summary: This study found that GmPUB genes in soybean respond to infection by soybean cyst nematode (SCN) and that the expression levels of GmPUB16A, GmPUB20A, GmCHIPA, GmPUB33A, GmPUB23A, and GmPUB24A significantly change during SCN infection. Further functional analysis revealed that GmPUB20A, GmPUB33A, and GmPUB24A negatively regulate soybean resistance under SCN stress.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Agronomy
Yu Tian, Delin Li, Xueqing Wang, Hao Zhang, Jiajun Wang, Lijie Yu, Changhong Guo, Xiaoyan Luan, Xinlei Liu, Hongjie Li, Jochen C. Reif, Ying-hui Li, Li-juan Qiu
Summary: In this study, through pedigree analysis and SNP markers, important genomic fragments related to soybean cyst nematode (SCN) resistance were identified. A total of 23 genomic loci underlying resistance to SCN were found, and a causative SNP in the Glyma.08G096500 gene, encoding a predicted TIFY5b-related protein, was highly correlated with SCN resistance. These findings provide valuable information for gene cloning and the development of resistant soybean cultivars.
THEORETICAL AND APPLIED GENETICS
(2023)
Article
Plant Sciences
Michael T. Mccarville, Julia Daum, Liqun Xing, Hal Moser
Summary: Field trials were conducted to evaluate the benefit of combining a transgenic soybean cyst nematode (SCN) resistance trait and a native resistance allele for SCN management. Both the transgenic and native resistance reduced SCN reproduction and significantly increased soybean yield. The combination of the two types of resistance provided better control of SCN and improved yield.
Article
Plant Sciences
Sarbottam Piya, Tracy Hawk, Bhoomi Patel, Logan Baldwin, John H. Rice, C. Neal Stewart, Tarek Hewezi
Summary: The study demonstrates that inactivating protein kinases through kinase-dead mutations can enhance soybean resistance to nematodes, showing the potential of this approach in increasing plant resistance to biotic and abiotic stresses.
MOLECULAR PLANT PATHOLOGY
(2022)
Article
Microbiology
Elisee Emmanuel Dabre, Mohamed Hijri, Colin Favret
Summary: The co-inoculation of arbuscular mycorrhizal fungi and rhizobia in soybean has been found to increase plant growth and yield, as well as enhance the reproductive rate of soybean aphids. This symbiotic relationship leads to an increase in plant biomass, nodulation, mycorrhizal colonization, nitrogen, and carbon concentrations, while decreasing phosphorus concentration. The effects are more pronounced compared to the inoculation of rhizobia alone.
Article
Plant Sciences
Heonil Kang, Hyoungrai Ko, Donggeun Kim, Insoo Choi
Summary: Both Heterodera sojae and Heterodera glycines are widely distributed in soybean fields in Korea, playing important roles in parasitizing soybean plants.
Article
Biochemistry & Molecular Biology
Dave T. Ste-Croix, Richard R. Belanger, Benjamin Mimee
Summary: The soybean cyst nematode (SCN) is the most damaging disease of soybean in North America. Prolonged exposure to resistant soybean cultivars has led to the emergence of virulence, but the mechanisms responsible for resistance breakdown are still unknown. This study used transcriptomic profiling and long-read sequencing to reannotate the SCN genome and identified novel transcripts and gene features. Although alternative splicing in effectors was observed, limited evidence of its involvement in resistance breakdown was found. However, the analysis suggested a possible adaptation process by SCN to host resistance.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)