Results 91 to 100 of about 354 (135)

Identification of Phytophthora sojae genes involved in asexual sporogenesis

Journal of Genetics, 2009
To explore the molecular mechanisms involved in asexual spore development in Phytophthora sojae, the zoospores of strain PS26 were treated with ultraviolet (UV) irradiation. After selection, a mutant progeny, termed PS26-U03, was obtained and demonstrated to exhibit no oospore production.
Ziying, Wang, Zhaoxia, Wang, Jie, Shen, Guangyue, Wang, Xiaoxi, Zhu, Hongxia, Lu   +5 more
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Pathotypes of Phytophthora sojae and their distribution in Jilin, China

Journal of Plant Pathology, 2021
A nine-year survey on pathotypes of Phytophthora sojae from 2007 to 2015 throughout Jilin Province of China was conducted. A total of 219 single-zoospore isolates of P. sojae that came from 250 commercial soybean fields in 25 counties were tested for their virulence phenotypes by using eight soybean differentials representing eight Rps alleles.
Zhuoqun Zhang, Yuqi Zhao, Han Yu, Yufei Chen, Xin Gu, Jingzhi Wen   +5 more
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Glucan synthase of Phytophthora sojae

2002
Glucans, with the (1-3)-b-glucosidic linkage as major feature, are present in most of the higher plants, in many lower plants, as well as in microorganisms (Stone and Clarke, 1992). The synthesis of (1-3)-b-glucan in vivo is catalysed by the enzyme (1-3)-b-glucan synthase (EC 2.4.1.34; UDP-glucose:1,3-b-D-glucan 3-b-D-glucosyl transferase) using UDP ...
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Phytophthora sojae Pathotype Distribution and Fungicide Sensitivity in Michigan

Plant Disease, 2022
Identifying the pathotype structure of a Phytophthora sojae population is crucial for the effective management of Phytophthora stem and root rot of soybean (PRR). P. sojae has been successfully managed with major resistance genes, partial resistance, and fungicide seed treatments.
Austin G. McCoy, Zachary A. Noel, Janette L. Jacobs, Kayla M. Clouse, Martin I. Chilvers   +4 more
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Inheritance and mapping of 11 avirulence genes in Phytophthora sojae

Fungal Genetics and Biology, 2002
Two new crosses involving four races (races 7, 16, 17, and 25) of the soybean root and stem rot pathogen Phytophthora sojae were established (7/16 cross; 17/25 cross). An F2 population derived from each cross was used to determine the genetic basis of avirulence towards 11 different resistance genes in soybean.
May, K.J., Whisson, S.C., Zwart R.S., Searle, I.R., Irwin, J.A.G., Maclean, D.J., Carroll, B.J., Drenth, A.   +7 more
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A Shift in Pathotype Diversity and Complexity of Phytophthora sojae in Brazil

Plant Disease, 2023
Soybean root and stem rot caused by the oomycete Phytophthora sojae is a destructive disease worldwide that can affect plants at any growth stage. The use of resistant cultivars is the most effective method of controlling the disease. Therefore, monitoring changes in the population of P.
Izabel C. A. Batista, Maria P. C. Silva, Amarildo L. Silva Junior, Mariela P. G. Arrigada, Meyriele. P. de Camargo, Adriana Figueiredo, Braz T. H. Júnior, Eduardo S. G. Mizubuti   +7 more
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Effect of a benzothiadiazole on inducing resistance of soybean to Phytophthora sojae

Protoplasma, 2012
Effects of benzothidiazole (BTH), an inducer of resistance, were examined in a compatible interaction of soybean seedlings and Phytophthora sojae using electron microscopy and quantitative real-time polymerase chain reaction (qRT-PCR) techniques. Seedlings were sprayed with BTH 2 days before inoculation of hypocotyls with zoospore suspension of P ...
Qingmei, Han, Hao, Feng, Haiyan, Zhao, Lili, Huang, Xiaojie, Wang, Xiaodong, Wang, Zhensheng, Kang   +6 more
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Phytophthora sojae Resistance in Soybean: Isoflavonoids as Weapons

Physiologia Plantarum
ABSTRACT Isoflavonoids, which are abundant in soybeans, increase the utility value of soybean products and mediate plant defenses against diverse stresses. In this study, integrated transcriptomic and ultra‐performance liquid chromatography (UPLC) analyses revealed that Phytophthora sojae
Yang Lu, Yu Zhang, Tianyue Sun, Pengwei Wang, Lingling Xian, Yan Li, Jinming Zhao, Han Xing, Na Guo   +8 more
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A survey of soybean germplasm for resistance to Phytophthora sojae

Euphytica, 2010
Phytophthora root and stem rot of soybean caused by Phytophthora sojae is a destructive disease affecting soybean production regions throughout the world. The utilization of resistant cultivars is the most economical and environmentally safe method for controlling this disease.
Xiao-Ling Wu, Jin-Ming Zhao, Shi Sun, Feng Yang, Yuan-Chao Wang, Jun-Yi Gai, Han Xing   +6 more
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Hyperparasitism of oospores of Phytophthora megasperma var. sojae

Soil Biology and Biochemistry, 1981
Abstract Hyperparasites of oospores of Phytophthora megasperma Drechs. var. sojae Hildb. were present in each of 15 field soils tested. Maximum numbers of oospores parasitized ranged from 42.5 to 87.5% for flooded soils, and from 25.5 to 73.0% for soils adjusted to 50% water holding capacity; the mean for all soils was 51.5%.
Susan J. Humble, J.L. Lockwood
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