Author(s): Harper, Scott; Cowell, Sarah-Jane; Dawson, William | Abstract: The physical effects of disease induced by Citrus tristeza virus (CTV) on its citrus host have long been known, but not how disease is induced either by the virus, or its effects on the host at the genetic level. In this study we aimed to examine the latter, by deliberate inoculation of Citrus macrophylla with a mutant T36-based infectious clone known to induce stem pitting and other growth abnormalities. The microRNA populations of disease-expressing plants were compared with plants infected with asymptomatic, wild-type T36, and with un-inoculated controls. We found that while virus infection induced change in expression of a large number of miRNAs, the onset of disease correlated with the downregulation of miR164, a miRNA associated with vascular differentiation. This is the first evidence of specific host miRNAs associated with the induction of a CTV disease syndrome.
{"title":"Changes in host microRNA expression during citrus tristeza virus induced disease","authors":"S. Harper, S. Cowell, W. Dawson","doi":"10.5070/c461041164","DOIUrl":"https://doi.org/10.5070/c461041164","url":null,"abstract":"Author(s): Harper, Scott; Cowell, Sarah-Jane; Dawson, William | Abstract: The physical effects of disease induced by Citrus tristeza virus (CTV) on its citrus host have long been known, but not how disease is induced either by the virus, or its effects on the host at the genetic level. In this study we aimed to examine the latter, by deliberate inoculation of Citrus macrophylla with a mutant T36-based infectious clone known to induce stem pitting and other growth abnormalities. The microRNA populations of disease-expressing plants were compared with plants infected with asymptomatic, wild-type T36, and with un-inoculated controls. We found that while virus infection induced change in expression of a large number of miRNAs, the onset of disease correlated with the downregulation of miR164, a miRNA associated with vascular differentiation. This is the first evidence of specific host miRNAs associated with the induction of a CTV disease syndrome.","PeriodicalId":166019,"journal":{"name":"Journal of Citrus Pathology","volume":"31 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120858819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Author(s): Johnson, E. G.; Wu, J.; Bright, D. B.; Graham, J. H. | Abstract: Huanglongbing in grove trees is initially identified by foliar symptoms, most commonly blotchy mottle. Detection of Candidatus Liberibacter asiaticus (Las) in leaf tissue by qPCR early in disease development is usually limited to symptomatic leaves and proximal young leaves. Over multiple years, disease symptoms spread to the rest of the canopy. Although Las has been detected in root tissue, the decline of roots has been assumed to happen later in disease development when photosynthate production and transport have been significantly diminished in the tree canopy. Observations of initial spread of Las from the bud-inoculation site in the trunk of 1-yr-old potted trees have revealed that Las is frequently detectable in roots months before detection of Las in leaves and foliar symptom development. Even after symptom development Las is more evenly distributed in root tissue than in the canopy. Preliminary evidence suggests that Las is also more evenly distributed in roots of grove trees. Asymptomatic 9 year old grove trees with root Las infection had 26-41% lower root density than asymptomatic trees without detectable root Las. The loss of root density was independent of Las detection in leaves. Root loss precedes carbohydrate starvation as evidenced by root starch concentrations, suggesting the bacteria may play a more active role in root loss than phloem plugging. These results suggest that early invasion of roots by Las leads to root decline before the appearance of foliar symptoms and is likely the cause of larger than expected yield reduction on trees with limited foliar symptoms.
{"title":"Early root infection and damage in Huanglongbing disease development","authors":"E. Johnson, J. Wu, D. Bright, J. Graham","doi":"10.5070/C411025181","DOIUrl":"https://doi.org/10.5070/C411025181","url":null,"abstract":"Author(s): Johnson, E. G.; Wu, J.; Bright, D. B.; Graham, J. H. | Abstract: Huanglongbing in grove trees is initially identified by foliar symptoms, most commonly blotchy mottle. Detection of Candidatus Liberibacter asiaticus (Las) in leaf tissue by qPCR early in disease development is usually limited to symptomatic leaves and proximal young leaves. Over multiple years, disease symptoms spread to the rest of the canopy. Although Las has been detected in root tissue, the decline of roots has been assumed to happen later in disease development when photosynthate production and transport have been significantly diminished in the tree canopy. Observations of initial spread of Las from the bud-inoculation site in the trunk of 1-yr-old potted trees have revealed that Las is frequently detectable in roots months before detection of Las in leaves and foliar symptom development. Even after symptom development Las is more evenly distributed in root tissue than in the canopy. Preliminary evidence suggests that Las is also more evenly distributed in roots of grove trees. Asymptomatic 9 year old grove trees with root Las infection had 26-41% lower root density than asymptomatic trees without detectable root Las. The loss of root density was independent of Las detection in leaves. Root loss precedes carbohydrate starvation as evidenced by root starch concentrations, suggesting the bacteria may play a more active role in root loss than phloem plugging. These results suggest that early invasion of roots by Las leads to root decline before the appearance of foliar symptoms and is likely the cause of larger than expected yield reduction on trees with limited foliar symptoms.","PeriodicalId":166019,"journal":{"name":"Journal of Citrus Pathology","volume":"48 24","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120815431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Author(s): Bove, J M | Abstract: From spinach chloroplasts to endogenous bacteria causing diseases in citrus: an autobiography of Joseph Marie Bove
摘要:从菠菜叶绿体到柑橘内源致病菌:约瑟夫·玛丽·博夫自传
{"title":"From spinach chloroplasts to endogenous bacteria causing diseases in citrus: an autobiography of Joseph Marie Bové","authors":"J. Bové","doi":"10.5070/c461045133","DOIUrl":"https://doi.org/10.5070/c461045133","url":null,"abstract":"Author(s): Bove, J M | Abstract: From spinach chloroplasts to endogenous bacteria causing diseases in citrus: an autobiography of Joseph Marie Bove","PeriodicalId":166019,"journal":{"name":"Journal of Citrus Pathology","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133743789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Candidatus Liberibacter americanus and Candidatus Liberibacter asiaticus are two bacterial species that cause huanglongbing (HLB) disease in citrus-growing regions of Brazil. A concentrated sampling plan of a grove in Matao, Brazil was initiated to evaluate the spatial and temporal spread of these bacteria. The exact location of each of 8697 trees was recorded, and each symptomatic tree was assessed by PCR for the presence of Ca. L. americanus and Ca. L. asiaticus during 17 different months from April 2006 to May 2008 (Fig. 1). In the first month, only five trees were confirmed to have Ca. L. asiaticus. The first trees with confirmed cases of Ca. L. americanus were not found until February 2007. By the end of the study, 43 trees were confirmed to have Ca. L. americanus, 1164 trees were confirmed to have Ca. L. asiaticus, and three trees were coinfected.
{"title":"Variability of direction of tree-to-tree spread of HLB over time","authors":"A. Kriss, S. Lopes, T. Gottwald","doi":"10.5070/C411024825","DOIUrl":"https://doi.org/10.5070/C411024825","url":null,"abstract":"Candidatus Liberibacter americanus and Candidatus Liberibacter asiaticus are two bacterial species that cause huanglongbing (HLB) disease in citrus-growing regions of Brazil. A concentrated sampling plan of a grove in Matao, Brazil was initiated to evaluate the spatial and temporal spread of these bacteria. The exact location of each of 8697 trees was recorded, and each symptomatic tree was assessed by PCR for the presence of Ca. L. americanus and Ca. L. asiaticus during 17 different months from April 2006 to May 2008 (Fig. 1). In the first month, only five trees were confirmed to have Ca. L. asiaticus. The first trees with confirmed cases of Ca. L. americanus were not found until February 2007. By the end of the study, 43 trees were confirmed to have Ca. L. americanus, 1164 trees were confirmed to have Ca. L. asiaticus, and three trees were coinfected.","PeriodicalId":166019,"journal":{"name":"Journal of Citrus Pathology","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115057118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
L. Khot, S. E. Jones, P. Trivedi, M. Ehsani, N. Wang, J. Reyes-De-Corcuera
Author(s): Khot, L. R.; Jones, S. E.; Trivedi, P.; Ehsani, M. R.; Wang, N.; Reyes-De-Corcuera, J. I. | Abstract: To decrease Candidatus Liberibacter asiaticus titer and increase the productive life of infected trees, thermal treatment of orange trees was proposed. A moving greenhouse was developed to cover single trees during the summer of 2012. Four trees (~ 2.5×2.5×2.5 m) were treated, one tree per day, during the months of September (trees T1 through T3) and October (tree T4). From each tree, three symptomatic branches were sampled to determine microbial kill before (0 h) and at 2, 3, 4, and 5 h during the treatment. Temperature distribution throughout the canopy and on the sampled branches was also recorded. Maximal temperatures in the ranges 50 to 53 °C were reached at the top (2.4 m) of the canopy whereas at the bottom of the canopy (i.e., 0.6 m) maximal temperatures ranged from 36 to 43 °C. Due to varied micro-meteorological conditions during the treatment, temperatures of the T1 through T4 sampled branches reached above 40⁰C for 217, 166, 35, 228 min, respectively. For T1, T2 and T4 trees, average temperatures of the sampled branches reached above 45 °C for 87, 35, and 49 min or more. Attempts to quantitatively determine microbial kill by determining percent live bacteria at selected time intervals during thermal treatment was unreliable due to the very uneven distribution of initial proportion of live-to-dead bacteria and analysis variability. However, overall, after thermal treatments, live microbial populations decreased. These findings indicate that adequate thermal treatment of trees required forced convection air flow and supplemental heating.
{"title":"In-Field Thermal Treatment of Huanglongbing (HLB) infected Trees","authors":"L. Khot, S. E. Jones, P. Trivedi, M. Ehsani, N. Wang, J. Reyes-De-Corcuera","doi":"10.5070/C411025141","DOIUrl":"https://doi.org/10.5070/C411025141","url":null,"abstract":"Author(s): Khot, L. R.; Jones, S. E.; Trivedi, P.; Ehsani, M. R.; Wang, N.; Reyes-De-Corcuera, J. I. | Abstract: To decrease Candidatus Liberibacter asiaticus titer and increase the productive life of infected trees, thermal treatment of orange trees was proposed. A moving greenhouse was developed to cover single trees during the summer of 2012. Four trees (~ 2.5×2.5×2.5 m) were treated, one tree per day, during the months of September (trees T1 through T3) and October (tree T4). From each tree, three symptomatic branches were sampled to determine microbial kill before (0 h) and at 2, 3, 4, and 5 h during the treatment. Temperature distribution throughout the canopy and on the sampled branches was also recorded. Maximal temperatures in the ranges 50 to 53 °C were reached at the top (2.4 m) of the canopy whereas at the bottom of the canopy (i.e., 0.6 m) maximal temperatures ranged from 36 to 43 °C. Due to varied micro-meteorological conditions during the treatment, temperatures of the T1 through T4 sampled branches reached above 40⁰C for 217, 166, 35, 228 min, respectively. For T1, T2 and T4 trees, average temperatures of the sampled branches reached above 45 °C for 87, 35, and 49 min or more. Attempts to quantitatively determine microbial kill by determining percent live bacteria at selected time intervals during thermal treatment was unreliable due to the very uneven distribution of initial proportion of live-to-dead bacteria and analysis variability. However, overall, after thermal treatments, live microbial populations decreased. These findings indicate that adequate thermal treatment of trees required forced convection air flow and supplemental heating.","PeriodicalId":166019,"journal":{"name":"Journal of Citrus Pathology","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127474940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1094/grow-cit-10-13-001
T. Gottwald, W. Luo, N. McRoberts
The recent discoveries of HLB in the Los Angeles Basin and the Rio Grande Valley of Texas underscore the imminent danger of HLB spread in these two States and the urgent need for highly sensitive survey methods for early detection of new residential infections of HLB combined with rapid intervention to contain and eliminate further spread. The Arizona citrus industry is also at considerable risk due to the proximity to the Mexican border and continued immigration of ACP from Mexico. The 2008 economic downturn has led to dwindling fiscal resources for many regulatory agencies including those tasked with conducting the survey for HLB. Therefore, sampling efforts need to be deployed based on potential risk introduction and threat to commercial citrus to optimize early detection. A risk-based residential survey has recently been constructed and deployed in Southern California and the Rio Grande Valley of Texas, and is being designed for Southern Arizona.
{"title":"Risk-based residential HLB/ACP survey for California, Texas and Arizona","authors":"T. Gottwald, W. Luo, N. McRoberts","doi":"10.1094/grow-cit-10-13-001","DOIUrl":"https://doi.org/10.1094/grow-cit-10-13-001","url":null,"abstract":"The recent discoveries of HLB in the Los Angeles Basin and the Rio Grande Valley of Texas underscore the imminent danger of HLB spread in these two States and the urgent need for highly sensitive survey methods for early detection of new residential infections of HLB combined with rapid intervention to contain and eliminate further spread. The Arizona citrus industry is also at considerable risk due to the proximity to the Mexican border and continued immigration of ACP from Mexico. The 2008 economic downturn has led to dwindling fiscal resources for many regulatory agencies including those tasked with conducting the survey for HLB. Therefore, sampling efforts need to be deployed based on potential risk introduction and threat to commercial citrus to optimize early detection. A risk-based residential survey has recently been constructed and deployed in Southern California and the Rio Grande Valley of Texas, and is being designed for Southern Arizona.","PeriodicalId":166019,"journal":{"name":"Journal of Citrus Pathology","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114484200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Author(s): Bitters, Willard P | Abstract: IOCV is pleased to present “Citrus Rootstocks: Their Characters and Reactions”, an unpublished manuscript by the late Prof. W.P. Bitters, University of California, Riverside. Based upon Prof. Bitters research and many other sources, this work was compiled between the late 1960’s and 1986 (additional information in preface). It represents a comprehensive (for that era) treatment of many facets of citrus rootstock physiology, horticulture, and pathology. Rootstocks serve as both conduits for citrus disease development and potential disease management tools, as well as tools in dealing with abiotic stresses. The history of the use of rootstocks for citrus has largely been determined by these factors, and they continue to greatly influence citrus rootstock research and usage. Although many advances in knowledge regarding citrus rootstocks have been made since 1986, the basic information presented remains important for all citriculturists. We hope that this Special Topic in IOCV’s Journal of Citrus Pathology makes this valuable resource more widely available.
{"title":"Citrus Rootstocks: Their characters and reactions (an unpublished manuscript)","authors":"W. Bitters","doi":"10.5070/C481052938","DOIUrl":"https://doi.org/10.5070/C481052938","url":null,"abstract":"Author(s): Bitters, Willard P | Abstract: IOCV is pleased to present “Citrus Rootstocks: Their Characters and Reactions”, an unpublished manuscript by the late Prof. W.P. Bitters, University of California, Riverside. Based upon Prof. Bitters research and many other sources, this work was compiled between the late 1960’s and 1986 (additional information in preface). It represents a comprehensive (for that era) treatment of many facets of citrus rootstock physiology, horticulture, and pathology. Rootstocks serve as both conduits for citrus disease development and potential disease management tools, as well as tools in dealing with abiotic stresses. The history of the use of rootstocks for citrus has largely been determined by these factors, and they continue to greatly influence citrus rootstock research and usage. Although many advances in knowledge regarding citrus rootstocks have been made since 1986, the basic information presented remains important for all citriculturists. We hope that this Special Topic in IOCV’s Journal of Citrus Pathology makes this valuable resource more widely available.","PeriodicalId":166019,"journal":{"name":"Journal of Citrus Pathology","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134522916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
D. Aldrich, R. Bester, G. Cook, A. Plessis, J. Burger, H. J. Maree
Author(s): Aldrich, Dirk Jacobus; Bester, Rachelle; Cook, Glynnis; du Plessis, Anton; Burger, Johan Theodorus; Maree, Hans Jacob | Abstract: Citrus tristeza virus (CTV) is the most important viral pathogen of citrus. CTV-induced stem pitting negatively impacts grapefruit and sweet orange production. The mechanisms of stem pitting development in CTV-infected citrus remain unclear. This study evaluated the utility of high-resolution CT scanning as a tool to study stem pitting in live citrus material. CT scans were used to easily identify pits based on differences in tissue density. Stem pits were also mapped and modelled three-dimensionally along the length of the stem. Nano-CT scanning proved to be a potentially valuable, non-destructive method for stem pitting characterization in citrus.
{"title":"Evaluating high-resolution computed tomography to study citrus tristeza virus-induced stem pitting","authors":"D. Aldrich, R. Bester, G. Cook, A. Plessis, J. Burger, H. J. Maree","doi":"10.5070/C481050093","DOIUrl":"https://doi.org/10.5070/C481050093","url":null,"abstract":"Author(s): Aldrich, Dirk Jacobus; Bester, Rachelle; Cook, Glynnis; du Plessis, Anton; Burger, Johan Theodorus; Maree, Hans Jacob | Abstract: Citrus tristeza virus (CTV) is the most important viral pathogen of citrus. CTV-induced stem pitting negatively impacts grapefruit and sweet orange production. The mechanisms of stem pitting development in CTV-infected citrus remain unclear. This study evaluated the utility of high-resolution CT scanning as a tool to study stem pitting in live citrus material. CT scans were used to easily identify pits based on differences in tissue density. Stem pits were also mapped and modelled three-dimensionally along the length of the stem. Nano-CT scanning proved to be a potentially valuable, non-destructive method for stem pitting characterization in citrus.","PeriodicalId":166019,"journal":{"name":"Journal of Citrus Pathology","volume":"122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116401781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Author(s): Cowell, SJ; Harper, SJ; Dawson, WO | Abstract: Efficient disease management is critical in the production of citrus; a crop that is susceptible to several plant pathogens. The ongoing battle with citrus greening has led to a shift in cultural practices, which could lead to a resurgence of previously controlled diseases. Here we investigated the presence of several common citrus-infecting viruses and viroids (Citrus leaf blotch virus, Apple stem grooving virus (synonym: Citrus tatter leaf virus), Citrus exocortis viroid, Hop stunt viroid (synonym: Citrus viroid II), and Citrus dwarfing viroid (synonym: Citrus viroid III) in Florida citrus groves. All five viruses and viroids are still present, with varying incidence. It would be prudent to take them into consideration when developing citrus disease management strategies.
{"title":"A survey of Florida citrus viruses and viroids","authors":"S. Cowell, S. Harper, W. Dawson","doi":"10.5070/C451040701","DOIUrl":"https://doi.org/10.5070/C451040701","url":null,"abstract":"Author(s): Cowell, SJ; Harper, SJ; Dawson, WO | Abstract: Efficient disease management is critical in the production of citrus; a crop that is susceptible to several plant pathogens. The ongoing battle with citrus greening has led to a shift in cultural practices, which could lead to a resurgence of previously controlled diseases. Here we investigated the presence of several common citrus-infecting viruses and viroids (Citrus leaf blotch virus, Apple stem grooving virus (synonym: Citrus tatter leaf virus), Citrus exocortis viroid, Hop stunt viroid (synonym: Citrus viroid II), and Citrus dwarfing viroid (synonym: Citrus viroid III) in Florida citrus groves. All five viruses and viroids are still present, with varying incidence. It would be prudent to take them into consideration when developing citrus disease management strategies.","PeriodicalId":166019,"journal":{"name":"Journal of Citrus Pathology","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117130851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Sanchez-Peña, L. Guízar-Guzmán, R. I. Torres-Acosta, J. López-Arroyo, R. Casique-Valdés
Entomopathogenic fungi are natural enemies of D. citri adults in Mexico. Natural prevalence (%) of fungi on live adults in central Veracruz (summer) and southern Tamaulipas (fall) were: Hirsutella citriformis (7-35); Isaria fumosorosea (5-15); Lecanicillium (2 in Tamaulipas), and Beauveria (<1). Torrubiella (=Sporothrix) is a hyperparasite of Hirsutella. In inland Tamaulipas only Isaria was found. Entomophthora (<2%), a new report for Diaphorina, was found at Veracruz in October 2012.
{"title":"Perspectives to the use of entomopathogenic fungi for biological control of Diaphorina citri in Mexico","authors":"S. Sanchez-Peña, L. Guízar-Guzmán, R. I. Torres-Acosta, J. López-Arroyo, R. Casique-Valdés","doi":"10.5070/C411025103","DOIUrl":"https://doi.org/10.5070/C411025103","url":null,"abstract":"Entomopathogenic fungi are natural enemies of D. citri adults in Mexico. Natural prevalence (%) of fungi on live adults in central Veracruz (summer) and southern Tamaulipas (fall) were: Hirsutella citriformis (7-35); Isaria fumosorosea (5-15); Lecanicillium (2 in Tamaulipas), and Beauveria (<1). Torrubiella (=Sporothrix) is a hyperparasite of Hirsutella. In inland Tamaulipas only Isaria was found. Entomophthora (<2%), a new report for Diaphorina, was found at Veracruz in October 2012.","PeriodicalId":166019,"journal":{"name":"Journal of Citrus Pathology","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116259040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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