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| 1 | Comparative analysis of symbiotic phenotypes of soybean ’’Tianlong 1’’ with two different rhizobia and co-inoculation at different developmental stages显示文摘Symbiotic nitrogen fixation between soybean and rhizobia, which directly catalyze reduction of atmospheric nitrogen into ammonia, has critical importance in agricultural economy and environment. However, soybean symbiotic nitrogen efficiency, which changes with growth stage, largely relies on symbiotic host-specificity and nodule development. In this report, symbiotic phenotypes of soybean ‘Tianlong 1’ with different inoculation (inoculated with Bradyrhizobium japonicum strain 113-2, Sinorhizobium fredii USDA205 and co-inoculated with 113-2 and USDA205) were comparatively studied at different developmental stages. Without additional nitrogen, chlorophyll content, above ground fresh weight,plant height, nodule number and nodule dry weight changed with different rhizobia at various developmental stages. 113-2 had more advantages than USDA205 in promoting plant growth and nodulation. Nodulation morphology of co-inoculation was more similar to 113-2 than USDA205. Competitive nodulation between two rhizobia promoted plant growth, which had significant agricultural application prospect. For the first time, this study provided evidence for co-inoculation with different rhizobia having positive effect on plant growth, and shed new light on the competitive relationship between different rhizobia. | Rong Li Songli Yuan Haifeng Chen Chanjuan Zhang Limiao Chen Qingnan Hao Xiaojuan Zhang Zhihui Shan Zhonglu Yang Shuilian Chen Dezhen Qiu Xin’an Zhou | 2017 | Oil Crop Science2017，2，3： | 1 |
| 2 | Herbivore defense responses and associated herbivore defense mechanism as revealed by comparing a resistant wild soybean with a susceptible cultivar显示文摘Plants have evolved sophisticated defense mechanisms against herbivores to help them adapt to the environment. Understanding the defense mechanisms in plants can help us control insects in a more effective manner. In this study, we found that compared with Tianlong 2(a cultivated soybean with insect susceptibility), ED059(a wild soybean line with insect resistance)contains sharper pubescence tips, as well as lower transcript levels of wound-induced protein kinase(WIPK) and salicylic acid-induced protein kinase(SIPK), which are important mitogen-activated protein kinases involved in early defense response to herbivores. The observed lower transcript levels of WIPK and SIPK induced higher levels of jasmonic acid(JA), JA biosynthesis enzymes(AOC3) and some secondary metabolites in ED059. Functional analysis of the KTI1 gene via Agrobacterium-mediated transformation in Arabidopsis thaliana indicated that it plays an important role in herbivore defense in ED059. We further investigated the molecular response of third-instar Helicoverpa armigera(Hübner) larvae to Tianlong 2 and ED059. We found apoptotic cells only in the midguts of larvae that fed on ED059. Compared with larvae reared on the susceptible cultivar Tianlong 2, transcript levels of catalase(CAT) and glutathione S-transferase(GST) were up-regulated, whereas those of CAR, CHSB, and TRY were down-regulated in larvae that fed on the highly resistant variety ED059. We propose that these differences underlie the different herbivore defense responses of ED059 and Tianlong 2. | Xiaoyi Wang Haifeng Chen Zhihui Shan Qingnan Hao Chanjuan Zhang Zhonglu Yang Xiaojuan Zhang Songli Yuan Dezhen Qiu Shuilian Chen Yongqin Jiao Xin'an Zhou | 2015 | The Crop Journal2015，3，6： | 1 |
| 3 | Research status of soybean symbiosis nitrogen fixation显示文摘Soybean(Glycine max)is one of the most important economic legume crops with largest planting area,and is also an important oil crop,as well as food and feed material.Soybean-rhizobia symbiosis plays important roles in plant cultivation and fertilizer application.However,there are many problems in agricultural application of soybean symbiotic nitrogen fixation.In this review,we summarized three restriction factors(host specificity,low nitrogen fixation efficiency and abiotic stress)and discussed research progresses of these factors.Clarification of host specific mechanism will help to select and apply rhizobia inoculants.Both maintaining high nitrogenase activity and delaying nodule senescence can improve the efficiency of symbiotic nitrogen fixation.Abiotic stress-tolerant rhizobia can improve the abiotic stress tolerance of soybean.Breeding stress tolerant genotypes of soybean and rhizobia,obtaining correlated genes are the common strategies to improve soybean symbiotic nitrogen fixation under extreme conditions.Regulatory mechanisms of these restriction factors are still poorly understood and needs further clarification. | Rong Li Haifeng Chen Zhonglu Yang Songli Yuan Xin’an Zhou | 2020 | Oil Crop Science2020，5，1： | 1 |
| 4 | Symbiotic matching between soybean ‘Tianlong 1’ and rhizobia显示文摘‘Tianlong 1’ is widely popularized and applied with good comprehensive characters and is also good receptor for genetic transformation. However, little is known about symbiotic nitrogen fixation of ‘Tianlong 1’. In this report, 10 soybean rhizobia from different areas were selected to perform symbiotic matching test with ‘Tianlong 1’ in chamber. Two aboveground indicators (fresh weight aboveground and plant height) and 4 underground indicators (length of root, number of nodules, dry weight of root nodules per plant and morphology of nodules) were measured and data were statistically analyzed. Results showed that ‘Tianlong 1’ was a broad-hosted soybean which has different symbiotic matching abilities with these 10 rhizobia. Bradyrhizobium japonicum has more advantages than Sinorhizobium fredii in promoting plant growth and nodulation. 113-2 and 5036 were high effective strains. 113-2 was regarded as the most effective rhizobium matching to ‘Tianlong 1’ due to geographical advantages and adaptability. This research will promote symbiotic fixation of ‘Tianlong 1’ in agricultural industry for the first time. | Rong Li Songli Yuan Haifeng Chen Chanjuan Zhang Limiao Chen Qingnan Hao Xiaojuan Zhang Zhihui Shan Zhonglu Yang Shuilian Chen Dezhen Qiu Xin’an Zhou | 2017 | Oil Crop Science2017，2，2： | 1 |
| 5 | Suppression of LjBAK1-mediated immunity by SymRK promotes rhizobial infection in Lotus japonicus.显示文摘An important question in biology is how organisms can associate with different microbes that pose no threat (commensals), pose a severe threat (pathogens) and those that are beneficial (symbionts). The root nodule symbiosis serves as important model system to address such questions in the context of plant-microbe interactions. It is now generally accepted that rhizobia have the abilities to actively suppress host immune responses during the infection process, analogous to the way in which plant pathogens can evade immune recognition. However, much remains to be elucidated with regard to the mechanisms by which the host recognizes the rhizobia as pathogens and how, subsequently, these pathways are suppressed to allow establishment of the nitrogen fixing symbiosis. In this study, we found that SymRK (Symbiosis Receptor-like Kinase) is required for rhizobial suppression of plant innate immunity in Lotus japonicus. SymRK associates with LjBAK1 (BRASSINOSTEROID INSENSITIVE 1-Associated receptor Kinase 1), a well characterized, positive regulator of plant innate immunity, and directly inhibits LjBAK1 kinase activity. Rhizobial inoculation enhances the association between SymRK and LjBAK1 in planta. LjBAK1 is required to regulate plant innate immunity and plays a negative role in mediating rhizobial infection in L. japonicus. The data indicate that the protein complex of SymRK-LjBAK1 serves as an intersection point between rhizobial symbiotic signaling pathways and innate immunity pathways, which provides an evidence that rhizobia might actively suppress the host's ability to mount a defense response in the legume-rhizobium symbiosis. | Yong Feng Ping Wu Chao Liu Liwei Peng Tao Wang Chao Wang Qian Tan Bixuan Li Yajuan Ou Hui Zhu Songli Yuan Renliang Huang Gary Stacey Zhongming Zhang Yangrong Cao | 2021 | Molecular Plant2021，14，11： | 0 |
| 6 | Screening and evaluation for soybean resistance to Phakopsora pachyrhyzi in Glycine soja显示文摘 | Zhihui SHAN Haifeng CHEN Sheng ZHAO Zhonglu YANG Yanyan YANG Chanjuan ZHANG Limiao CHEN Songli YUAN Shuilian CHEN Dezhen QIU Xinan ZHOU | 2016 | Oil Crop Science2016，1，1： | 0 |
| 7 | High efficient broad-spectrum Bradyrhizobium elkanii Y63-1显示文摘Soybean(Glycine max),the primary source of high-quality plant protein,plays a crucial role as a grain and oil crop in China.Harnessing the full potential of symbiotic nitrogen fixation in soybean production holds immense significance for agriculture and ecology alike.Zhongdou 63,a newly developed early-maturing summer soybean cultivar in 2021,exhibits remarkable traits such as high yield,superior quality,multi-resistance,and wide adaptability.In this study,eight distinct rhizobia strains from diverse regions were meticulously screened to identify highly effective strains specifically suited for Zhongdou 63.The aboveground biomass,plant height,chlorophyll content,root length,nodule number,and nodule dry weight of Zhongdou 63 were measured and the data were subjected to statistical analysis.The results demonstrated that Y63-1 is a predominant strain of Zhongdou 63.Subsequently,we conducted further investigations on the broad-spectrum nodulation characteristics of Y63-1.Ten representative soybean cultivars were individually inoculated with Y63-1 and subsequently analyzed for nodule numbers and nodule dry weight in their symbiotic systems with rhizobia.The findings revealed that Y63-1 effectively formed nodules with all ten soybean varieties tested.In summary,our current study identified highly efficient broad-spectrum Bradyrhizobium elkanii strain Y63-1 as the predominant strain in Zhongdou 63 and provided a theoretical foundation for enhancing yield potential not only in Zhongdou 63 but also in other varieties through inoculation with highly efficient rhizobia in production. | Piao Leng Fuxiao Jin Song Li Yi Huang Chanjuan Zhang Zhihui Shan Zhonglu Yang Limiao Chen Dong Cao Qingnan Hao Wei Guo Hongli Yang Shuilian Chen Xinan Zhou Songli Yuan Haifeng Chen | 2023 | Oil Crop Science2023，8，4： | 0 |
| 8 | Application of soybean shoot-cutting in SMV-resistance genetic analysis显示文摘 | Haifeng Chen Zhonglu Yang Qiao Wan Yanyan Yang Shuilian Chen Chanjuan Zhang Limiao Chen Songli Yuan Dezhen Qiu Zhihui Sha Xin'an zhou | 2016 | Oil Crop Science2016，1，3： | 0 |
| 9 | Pedigree analysis of nationally approved soybean cultivars from 1984 to 2013 and implications for breeding显示文摘 | Zhonglu Yang Xiaomin Guan Yanqin He Zhihui Shan Dezhen Qiu Xiaojuan Zhang Limiao Chen Chanjuan Zhang Songli Yuan Shuilian Chen Qingnan Hao Haifeng Chen Xin'an Zhou | 2016 | Oil Crop Science2016，1，4： | 0 |
| 10 | How many proteins interacting with symbiosis receptor-like kinase (SymRK) involved in nodulation?显示文摘 | Songli Yuan Rong Li Zhongming Zhang Xinan Zhou | 2016 | Oil Crop Science2016，1，4： | 0 |
| 11 | Evaluation of seed vigor in soybean germplasms from different eco-regions显示文摘Seed vigor plays an essential role in soybean production.Soybean seed is sensitive to environment and easy to get seed deterioration.Generally soybean seed vigor can be maintained for less than one year and have to be multiplied every year.Varieties with good seed vigor are essential for maintaining planting population and stable yield.In this research,419 germplasms from three eco-regions,South China,Huanghuai region and Northeast China,were evaluated for seed vigor by assessing germination ratio,germination potential and germination index.About 34.8%of tested germplasm had germination ratio equal or more than 85%,suggested by the national soybean seed quality standard of China.Only 9 from 82 tested cultivars met the seed standard.Seed germination ratio distribution had obvious regional feature.Landraces performed better seed vigor than cultivars.Germplasms from South China had stronger seed vigor compared to those from Huanghuai and Northeast regions.Seed vigor has no significant relationship with maturity and 100-seed weight.Totally 21 germplasms with strong seed vigor,favor maturation and seed size were identified and can be used in future breeding program. | Qingnan Hao Yanyan Yang Changxun Guo Xuefei Liu Haifeng Chen Zhonglu Yang Chanjuan Zhang Limiao Chen Songli Yuan Shuilian Chen Dong Cao Wei Guo Dezhen Qiu Xiaojuan Zhang Zhihui Shan Xin’an Zhou | 2020 | Oil Crop Science2020，5，1： | 0 |
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