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Virulence of Sogatella furcifera field populations to rice varieties:A determination with electronic monitoring system

SHEN Junhui~,LI Ping~,LIU Guangjie~,
沈君辉 李平

应用生态学报 , 2005,
Abstract: With electronic monitoring system (EMS) and honeydew measurement, this paper determined the virulence of Sogatella furcifera field populations in Fuyang County of Zhejiang Province and Changfeng County of Anhui Province. The results showed that in the three EMS recording periods (2, 4 and 6 h), the ratios of phloem ingestion duration to susceptible rice variety TN1 (check) and highly resistant variety RHT were relatively stable. Two hours duration was defined as the shortest period to detect the virulence of S. furcifera field population by EMS. The amounts of honeydew excreted by S. furcifera field population on rice varieties N22, ARC, ADR52 and ND in Fuyang County, which carried the dominant resistance gene Wbph 1, Wbph 2, Wbph 3 and Wbph 5, respectively, were not significantly different from each other, but significantly lower than that on TN1. The durations of phloem ingestion on ARC and ADR52 were not significantly different, but significantly shorter than that on TN1. For the field population in Changfeng County, the amounts of honeydew excreted by S. furcifera did not differ significantly on N22 and ARC or on ADR52 and ND, but the honeydew on the former two rice varieties was significantly more than that on the latter two. The duration of phloem ingestion on ADR52 (22.3 min x 2 h(-1)) was significantly shorter than that on ARC (49.8 min x 2 h(-1)). Therefore, the virulence of S. furcifera field population in Fuyang County had no changes, whereas in Changfeng County, the population showed a definite adaptation to N22 and ARC, displaying the trend of virulence shift. Electronic monitoring system provided a new means for rapidly and accurately detecting the virulence and monitoring its change of S. furcifera field population.
Tolerance of rice varieties to whitebacked planthopper Sogatella furcifera and variation of nutrient components in rice plants

Jianming Chen,Xiaoping Yu,Zhongxian Lü,Xusong Zheng,Hongxing Xu,Jia''an Cheng,Guangjie Liu,

应用生态学报 , 2003,
Abstract: The study showed that the rice varieties N22, Luyuanzhan No. 1 and 94D-22 had a stronger tolerance to Sogatella furcifera, while Mudgo and K89-B5 had a weaker tolerance. The varieties Ptb33 and Zhongzu 74 were of antibiosis, and susceptible varieties Xiushui 11, Shanyou 63 and susceptible check varieties TN1 had no tolerance. After rice plants were infested by S. furcifera, the percentages of nitrogen content (N%) and soluble sugar content (S%) in tolerant varieties increased, but the ratio of nitrogen content to soluble sugar content (N/S) decreased obviously. For susceptible varieties, the variations of N%, S% and N/S were opposite to those of the tolerant varieties. In different varieties the contents of most kinds of free amino acid increased at various degrees, but those of alanine in susceptible variety TN1, alanine, threonine and methionine in tolerant varieties N22, and arginine in resistant variety Ptb33 decreased.
Life Table and Population Parameter of Sogatella furcifera (Horvath) (Homoptera: Delphacidae) on Rice  [PDF]
S.S. Win,R. Muhamad,Z.A.M. Ahmad,N.A. Adam
Journal of Biological Sciences , 2009,
Abstract: Survivorship and fertility of the White Backed Plant Hopper (WBPH), Sogatella furcifera were assessed under laboratory conditions in Myanmar. A pair of five days old WBPH was released into a wooden cage covered with wire mesh sieve. Thirty days old rice plant in a pot was placed on the floor of the wooden cage. The single sex method was applied in the life table study. Life tables and population parameters were constructed based on unlimited food supply and a natural enemies-free environment. Results showed that the highest mortality occurred in the immature stages, especially in the first and second instars. The life table analysis showed that population densities of S. furcifera decreased gradually. The proportion of male to female observed was 1:0.88. The females could live for a maximum of 12 days. The trend of oviposition showed a peak at about the 10th day of the female life span. The mean number of eggs produced per female was 8.75. The intrinsic rate of increase (rm) was 0.06999 per female per day and daily finite of increase (λ) was 1.0255 per female per day, with a mean generation time (T) of 34.97 days. The net reproductive rate (Ro) of the population was 9.2732. The population Doubling Time (DT) was within 10.88 days. It could be concluded that the survivorship curve reflected a modest rate of mortality during the early life stages and a gradual reduction when approaching adulthood. All the surviving nymphs underwent four moults. The life table showed that about 37.26% of S. furcifera eggs successfully emerged as adults and high mortality occurred during the early immature stages. This type of survivorship is commonly classified as type II.

生态学报 , 1981,
Abstract: In order to verify a hypothesis on the migratory route in seasonal migration of Nitaparvata lugens and Sogalella furcifera, test on the releasing and recapturing of marked planthoppers were carried out in 1978 and in 1979. The results showed that both Nilaparvata lugens and Sogatella furcifera are capable of flying for long distance.In 1978, one red marked brown planthopper, released at Dongguan county, has been recaptured at Chen county in the northward migration, another green marked brown planthopper, re...
Clonging and phylogenetic analysis of 18S rDNA gene from Sogatella furcifera (Horvath)

LIANG Ziqiang
,LIANG Shike,LIU Tingting,LI Guanghong,WANG Fanghai

- , 2017,
Abstract: 以白背飞虱Sogatella furcifera长翅雌虫为材料,提取其基因组DNA,以已知的半翅目昆虫18S rDNA全序列和白背飞虱18S rDNA部分序列为参考,通过PCR扩增出白背飞虱18S rDNA的未知部分序列,最后通过拼接,首次得到了白背飞虱18S rDNA的全长序列,长度为1 891 bp,碱基组成比例均衡,分别为:24.1% A;23.7% C;27.7% G;24.5% T。将此全长序列与分属6个目(半翅目、双翅目、膜翅目、直翅目、鞘翅目、等翅目)昆虫的18S rDNA序列进行比较,一共发现有4个保守区域,其中第二个区域发生插入或缺失的情况最少。以18S rDNA第二保守区域进行系统发育分析,发现原同翅目昆虫多数均与半翅目昆虫菜蝽亲缘关系较近,但原同翅目飞虱科昆虫,如白背飞虱、褐飞虱则与半翅目昆虫菜蝽的亲缘关系较远,表明近年来将原同翅目昆虫全部划归为半翅目还有待商榷之处
Silencing of OsERF7 enhances the resistance of rice to the brown planthopper Nilaparvata lugens and the white-backed planthopper Sogatella furcifera

陈梦婷,周书行,张月白,杨丽娟,吕静,娄永根,Chen Mengting,Zhou Shuxing,Zhang Yuebai,Yang Lijuan,Lü Jing,Lou Yonggen
- , 2018, DOI: 10.13802/j.cnki.zwbhxb.2018.2018928
Abstract: 为了解植物中特有的转录因子乙烯响应因子(ethylene responsive factor,ERF)在植物诱导抗虫反应中的作用,通过克隆1个水稻ERF转录因子基因OsERF7,并结合分子生物学、反向遗传学及生物测定,探究其在水稻防御褐飞虱Nilaparvata lugens和白背飞虱Sogatella furcifera为害过程中的作用。结果显示,机械损伤处理与褐飞虱产卵雌成虫为害均能在中后期诱导OsERF7的表达。沉默OsERF7能显著降低水稻上褐飞虱及白背飞虱卵的孵化率,并延长褐飞虱卵的发育历期;与野生型水稻相比,褐飞虱和白背飞虱在沉默突变体品系R1和R30上的卵孵化率分别只有野生型水稻上的62.5%~68.3%和68.0%~76.0%,褐飞虱卵的发育历期则延长0.37~0.45 d。沉默OsERF7不影响褐飞虱产卵雌成虫为害诱导的水稻防御相关信号分子—茉莉酸(JA)、水杨酸(SA)、乙烯(ET)和过氧化氢(H2O2)的含量。表明转录因子OsERF7作用于防御相关信号途径的下游,并且负调控水稻对褐飞虱和白背飞虱的抗性。
A kind of plant-specific transcription factors in herbivore-induced plant defenses and a rice ERF gene of OsERF7 was cloned to clarify the role of the ethylene responsive factors (ERFs), and its functions in the resistance of rice to Nilaparvata lugens (rice brown planthopper, BPH) and Sogatella furcifera (white-backed planthopper, WBPH) were explored by combining molecular biology, reverse genetics and bioassays. The results showed that the expression of OsERF7 was induced by mechanical damage and by infestation of gravid BPH females at middle and late stages. Silencing OsERF7 significantly reduced hatching rates of eggs of BPH and WBPH:the hatching rates of BPH and WBPH eggs in lines silencing OsERF7 were 62.5%-68.3% and 68.0%-76.0% of those in wide-type plants. Moreover, silencing OsERF7 also prolonged the developmental duration of BPH eggs by 0.37-0.45 d. Compared to wild-type rice, silencing OsERF7 couldn't affect gravid BPH female-elicited levels of jasmonic acid (JA), salicylic acid (SA), ethylene (ET) and H2O2. The results indicated that OsERF7 functions downstream of defense-related signaling pathways, and negatively regulates the resistance of rice to BPH and WBPH.
RNA Interference Depletion of the Halloween Gene Disembodied Implies its Potential Application for Management of Planthopper Sogatella furcifera and Laodelphax striatellus  [PDF]
Pin-Jun Wan, Shuang Jia, Na Li, Jin-Mei Fan, Guo-Qing Li
PLOS ONE , 2014, DOI: 10.1371/journal.pone.0086675
Abstract: Sogatella furcifera and Laodelphax striatellus are economically important rice pests in China by acting as vectors of several rice viruses, sucking the phloem sap and blocking the phloem vessels. Ecdysteroid hormone 20-hydroxyecdysone regulates insect development and reproduction. A cytochrome P450 monooxygenase CYP302A1 (22-hydroxylase), encoded by the Halloween gene disembodied (dib), plays a critical role in ecdysteroidogenesis. The objective of this study is to test whether dib genes are potential targets for RNA interference-based management of S. furcifera and L. striatellus. We cloned and characterized Sfdib and Lsdib. The open reading frame regions of dib genes were generated and used for designing and constructing dsRNA fragments. Experiments were conducted using oral delivery of dsdib to investigate the effectiveness of RNAi in S. furcifera and L. striatellus nymphs. Real-time quantitative reverse transcriptase-PCR analysis demonstrated that continuous ingestion of dsdib at the concentration of 0.01, 0.05 and 0.50 mg/ml diminished Sfdib expression levels by 35.9%, 45.1% and 66.2%, and ecdysone receptor (SfEcR) gene mRNA levels by 34.0%, 36.2% and 58.5% respectively in S. furcifera, and decreased Lsdib expression level by 18.8%, 35.8% and 56.7%, and LsEcR mRNA levels by 25.2%, 46.8% and 68.8% respectively in L. striatellus. The reduction in dib and EcR transcript abundance resulted in observable phenotypes. The development of nymphs was impaired and the survival was negatively affected. Our data will enable the development of new insect control strategies and functional analysis of vital genes in S. furcifera and L. striatellus nymphs.
Comparison of the defense responses in rice induced by brown planthopper Nilaparvata lugens (St?l) and white-backed planthopper Sogatella furcifera (Horváth)

刘晓丽,娄永根,Liu Xiaoli,Lou Yonggen
- , 2018, DOI: 10.13802/j.cnki.zwbhxb.2018.2018927
Abstract: 为探究2种稻飞虱——褐飞虱Nilaparvata lugens(St?l)和白背飞虱Sogatella furcifera(Horváth)诱导的水稻防御反应差异,于室内测定了水稻在分别受褐飞虱或白背飞虱产卵雌成虫为害时,其茉莉酸、水杨酸、乙烯、H2O2以及挥发物含量的变化。结果表明,尽管褐飞虱和白背飞虱产卵雌成虫的为害均可以诱导水稻茉莉酸、水杨酸、乙烯和H2O2等防御相关信号分子以及一些水稻挥发物含量的增加,但是二者的诱导作用存在差异。水稻在受白背飞虱产卵雌成虫为害时,茉莉酸的含量在3 h时就显著升高,12 h时含量达到最高;而受褐飞虱产卵雌成虫为害时,6 h时茉莉酸含量才显著升高,72 h时含量达最高;并且在2种稻飞虱为害的3~48 h内,白背飞虱为害诱导的茉莉酸含量始终显著高于褐飞虱为害诱导的。水稻受白背飞虱产卵雌成虫为害24 h后诱导的水杨酸含量、为害48 h后诱导的乙烯含量、为害72 h后诱导的H2O2含量及为害24 h后诱导的挥发物释放量分别是褐飞虱产卵雌成虫为害诱导的1.28、1.45、4.10和1.77倍。表明水稻能识别褐飞虱和白背飞虱的为害,从而做出针对害虫种类特异性的防御反应;并且水稻对白背飞虱产卵雌成虫为害所做出的防御反应比对褐飞虱的更强烈。
To explore the difference in the defense responses of rice induced by brown planthopper (BPH) Nilaparvata lugens (St?l) and white-backed planthopper (WBPH) Sogatella furcifera (Horváth), the levels of defense-related signals, including jasmonic acid (JA), salicylic acid (SA), hydrogen peroxide (H2O2) and ethylene (ET), and the levels of volatiles emitted from rice plants when they were infested with gravid BPH or WBPH females were investigated. The results showed that, although infestation of both gravid BPH and WBPH females increased levels of JA, SA, ET and H2O2 in rice plants as well as the production of rice volatiles, there were differences in the defense responses in rice induced by these two herbivores. WBPH infestation increased JA levels in rice significantly starting at 3 h and peaked at 12 h, whereas BPH infestation increased JA levels starting at 6 h and peaked at 72 h. Moreover, the levels of JA in rice plants infested by WBPH were stably higher than those in rice plants infested by BPH during 3-48 h after infestation. In addition, SA levels at 24 h, ET levels at 48 h and H2O2 levels at 72 h after infestation as well as the total amount of volatiles at 24 h after infestation from rice plants infested by gravid WBPH females were 1.28-, 1.45-, 4.10-, and 1.77-fold higher than those in or from rice plants infested by gravid BPH females. These results indicated that rice plants could distinguish between BPH infestation and WBPH infestation and then produce herbivore species-specific defense responses. Moreover, the defense response of rice to infestation by gravid WBPH female was quicker and stronger than that by gravid BPH females.
Control effects of mermithid nematodes (Enoplida: Mermithidae) to rice pests Sogatella furcifera (Horváth) and Nilaparvata lugens (St?l)

马明勇,彭兆普,赵鑫,唐涛,王培,符伟,Ma Mingyong,Peng Zhaopu,Zhao Xin,Tang Tao,Wang Pei,Fu Wei
- , 2017, DOI: 10.13802/j.cnki.zwbhxb.2017.2017912
Abstract: 为明确田间水稻白背飞虱Sogatella furcifera(Horváth)和褐飞虱Nilaparvata lugens(St?l)的主要寄生性天敌索线虫科线虫的寄生动态及防控效果,于2013—2015年在湖南省长沙市宁乡市通过田间调查和线虫罩笼法研究了索线虫科线虫对白背飞虱和褐飞虱的寄生动态以及优势种长沙多索线虫Agamermis changshaensis Bao,Luo et Luo对褐飞虱的防控效果。结果表明,在长沙市,索线虫科线虫寄生白背飞虱始见期为6月底至7月初,1个月后出现高峰期,基本与白背飞虱发生高峰期同步;对褐飞虱寄生高峰期早稻多发生在7月中下旬,而晚稻在8月底至9月中旬。索线虫科线虫对白背飞虱雌虫、高龄若虫和雄虫最高寄生率分别为16.95%、14.81%和7.69%;而对褐飞虱雌虫、高龄若虫和雄虫最高寄生率分别为43.33%、20.93%和11.63%。2014年和2015年罩笼盆栽试验结果表明,处理后45 d长沙多索线虫对褐飞虱的防控效果分别为36.11%和33.19%。研究结果表明长沙多索线虫可以作为水稻稻飞虱绿色防控的一种重要辅助性措施。
The white-backed planthopper, Sogatella furcifera (Horváth), and brown planthopper, Nilaparvata lugens (St?l), are the most destructive pests for rice in Hunan Province. Mermithid nematodes are very important parasite natural enemies for rice planthoppers in the paddy area. To understand the dynamics of mermithid nematode parasitic rates to white-backed planthoppers and brown planthoppers in the paddy area, the field investigation were conducted in Ningxiang City from 2013 to 2015. Moreover, the control effects of Agamermis changshaensis against brown planthoppers were evaluated with cage trial. The results showed that the first appearance of parasitic behavior of mermithid nematodes to white-backed planthoppers and brown planthoppers mainly occurred from late June to early July. The major parasitic period of mermithid nematodes was synchronized with occurrence peak of white-backed planthoppers. However, for brown planthoppers, the parasitic peaks in early rice were observed in middle or late July, and in late rice a sustained parasitic peak was recorded from late August to middle September. During 2013 and 2015, the highest parasitic rates of mermithid nematodes to females, 3rd-5th instar nymphs and males of white-backed planthoppers were 16.95%, 14.81% and 7.69%, respectively,and to brown planthoppers were 43.33%, 20.93% and 11.63% respectively. Moreover, during 2014 and 2015, the control effects at 45 days after treatment of A. changshaensis against brown planthoppers were 36.11% and 33.19%, respectively. The results suggested that A. changshaensis using could be considered as an important supporting technology to green integrated management technology for rice planthoppers.
Intra-and interspecific relationship of Nilaparvata lugens(stl) and Sogatella furcifera (Horváth) on various rice varieties

ZHAO Wei-Chun,

生态学报 , 2001,
Abstract: The intra\|and inter\|specific relationship of Nilaparvata lugens (stl) and Sogatella furcifera (Horvath) on three rice varieties, Z852, XS11 and XY9308, were studied in the laboratory. The density\|dependent effects of S. furcifera and N. lugens were weak on the three rice varieties at nymphal densities ranging from 6 to 24 or adult densities ranging from 2 to 6 pairs per cage. The density\|dependent effects of N. lugens were weaker than those of S. furcifera. There were various adverse effects of intra specific crowding of the two species on the three varieties. The density\|dependent effect of S. furcifera were stronger on XS11 and XY9308 than that on Z852; The density\|dependent effect of N. lugens were stronger on Z852 and XY9308 than that on XS11.The interspecific interactions between S. furcifera and N. lugens were beneficial to each other. The nymphal survival rate, brachypter rate, fecundity, and hatchibility of each species in the mixed culturing of the two species were significantly higher than those in separated culturing.
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