Pub Date : 2016-10-03DOI: 10.4172/2168-9776.1000184
Patel Dd
Salmalia rubra (Buch-Ham.) S. Dutta & P. Harvey forma Hiteshii is new combination forma from the Dharampur, Valsad district, Gujarat, India. Three individuals have been observed in that area only. The yellow color flower has been observed for four years.
大鲵(大鲵)S. Dutta & P. Harvey forma Hiteshii是来自印度古吉拉特邦Valsad地区Dharampur的新型组合形式。只在那个地区观察到三个人。黄色的花已经被观察了四年。
{"title":"Salmalia rubra (Buch.-Ham.) S. Dutta & P. Harvey Forma Hiteshii (Comb. nov.), New Record of a Forma from Gujarat, India","authors":"Patel Dd","doi":"10.4172/2168-9776.1000184","DOIUrl":"https://doi.org/10.4172/2168-9776.1000184","url":null,"abstract":"Salmalia rubra (Buch-Ham.) S. Dutta & P. Harvey forma Hiteshii is new combination forma from the Dharampur, Valsad district, Gujarat, India. Three individuals have been observed in that area only. The yellow color flower has been observed for four years.","PeriodicalId":35920,"journal":{"name":"林业科学研究","volume":"13 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2016-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86037908","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 : 2016-09-30DOI: 10.4172/2168-9776.1000178
Rodríguez Hg, Maiti Rm, Balboa Pcrb, Tijerina Had, A. Kumari
During last three to four years we studied various aspects of woody plant species in Forest Science School, Universidad de Nuevo Leon, UANL, Mexico. The present study describes salient characteristics of habitat, leaf morphology, wood anatomy, wood density and few eco-physiological traits of major woody plant species of Tamaulipan Thornscrub, at Linares, Northeastern Mexico. This will serve as guide to know about all these traits for the students, researchers and foresters to unveil the various aspects of these woody species of high economic importance and ecological importance.
{"title":"Woody Plants of Tamaulipan Thorn Scrub: Morphology, Wood Anatomy and Ecophysiology","authors":"Rodríguez Hg, Maiti Rm, Balboa Pcrb, Tijerina Had, A. Kumari","doi":"10.4172/2168-9776.1000178","DOIUrl":"https://doi.org/10.4172/2168-9776.1000178","url":null,"abstract":"During last three to four years we studied various aspects of woody plant species in Forest Science School, Universidad de Nuevo Leon, UANL, Mexico. The present study describes salient characteristics of habitat, leaf morphology, wood anatomy, wood density and few eco-physiological traits of major woody plant species of Tamaulipan Thornscrub, at Linares, Northeastern Mexico. This will serve as guide to know about all these traits for the students, researchers and foresters to unveil the various aspects of these woody species of high economic importance and ecological importance.","PeriodicalId":35920,"journal":{"name":"林业科学研究","volume":"177 1","pages":"1-19"},"PeriodicalIF":0.0,"publicationDate":"2016-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83543686","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 : 2016-09-30DOI: 10.4172/2168-9776.1000182
W. Hong, D. Claire, Z. Yu, S. Yin, L. Yu, Z. Yi
Soil quality has significant importance for the growth and sustainability of plants. However, due to the variability and diversity of soil characteristics, many trees suffered death according to their confrontation degree. Over the past several decades, Robinia pseudoacacia forests in the Yellow River delta of China, lose health and died without an obvious cause. This study focuses on evaluating the role of soil characteristics (moisture content, soil salinity content, soil bulk density, soil texture (the percentages of soil sand, soil silt, and soil clay) and pH value on the deterioration of health level of Robinia pseudoacacia forests in the area. To do so, three health levels such as healthy, medium dieback, and severe dieback forest were firstly classified based on the United States Department of Agriculture Forestry Bureau of crown condition classification guide and in situ survey, then soil properties in vertical direction were analyzed by five sampling points for each forest type from surface to the depth of 260 cm with eight layers (0-20 cm, 20-40 cm, 40-60 cm, 60-100 cm, 100-140 cm, 140-180 cm, 180-220 cm and 220-260 cm) for healthy and moderate dieback and 0- 220 cm depth with seven layers for severe dieback because the water occurred after 220 cm depth. The results indicated that there are significant differences in soil moisture content and soil conductivity among three forest health conditions. For a vertical change of soil characteristics only soil particle sizes (sand, silt and clay) had a significant difference in three forest health conditions. For system roots, absorptive roots were observed down to 230 cm depth for healthy Robinia pseudoacacia forest but moderate and severe dieback Robinia pseudoacacia forests, roots are found in the surface layer.
{"title":"Effects of Soil on Degradation of Robinia pseudoacacia Forests in the Yellow River Delta in China","authors":"W. Hong, D. Claire, Z. Yu, S. Yin, L. Yu, Z. Yi","doi":"10.4172/2168-9776.1000182","DOIUrl":"https://doi.org/10.4172/2168-9776.1000182","url":null,"abstract":"Soil quality has significant importance for the growth and sustainability of plants. However, due to the variability and diversity of soil characteristics, many trees suffered death according to their confrontation degree. Over the past several decades, Robinia pseudoacacia forests in the Yellow River delta of China, lose health and died without an obvious cause. This study focuses on evaluating the role of soil characteristics (moisture content, soil salinity content, soil bulk density, soil texture (the percentages of soil sand, soil silt, and soil clay) and pH value on the deterioration of health level of Robinia pseudoacacia forests in the area. To do so, three health levels such as healthy, medium dieback, and severe dieback forest were firstly classified based on the United States Department of Agriculture Forestry Bureau of crown condition classification guide and in situ survey, then soil properties in vertical direction were analyzed by five sampling points for each forest type from surface to the depth of 260 cm with eight layers (0-20 cm, 20-40 cm, 40-60 cm, 60-100 cm, 100-140 cm, 140-180 cm, 180-220 cm and 220-260 cm) for healthy and moderate dieback and 0- 220 cm depth with seven layers for severe dieback because the water occurred after 220 cm depth. The results indicated that there are significant differences in soil moisture content and soil conductivity among three forest health conditions. For a vertical change of soil characteristics only soil particle sizes (sand, silt and clay) had a significant difference in three forest health conditions. For system roots, absorptive roots were observed down to 230 cm depth for healthy Robinia pseudoacacia forest but moderate and severe dieback Robinia pseudoacacia forests, roots are found in the surface layer.","PeriodicalId":35920,"journal":{"name":"林业科学研究","volume":"14 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2016-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72893427","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 : 2016-08-30DOI: 10.4172/2168-9776.1000180
R. Walker, R. M. Fecko, Dale W. Johnson, W. W. Miller
Forest thinnings accomplished through cut-to-length and whole-tree harvesting followed by a prescribed underburn were assessed for their influences on mineral nutrition in eastern Sierran Jeffrey pine (Pinus jeffreyi Grev. & Balf.). As derived from foliar elemental concentrations determined at six samplings distributed over three growing seasons, molar Ca/Al, Mg/Al, K/Al, Ca/Mn, Mg/Mn, and K/Mn were generally higher in the unthinned treatment and lower in burned stand portions. Conducted under drought conditions, the driest phase of the study resulted in lower Ca/Al, Mg/Al, and K/Al and higher Ca/Mn and Ca/Zn when averaged across treatments. Foliar K/Mn, K/Zn, and K/Cu were generally lower in the early portion of the growing season compared to the late portion. At mid growing season, Mg/Al, K/Al, Mg/Mn, K/Mn, K/Fe, K/Zn, and K/Cu were higher in young needles while Ca/Al, Ca/Fe, Mg/Fe, Ca/Zn, Ca/Cu, and Mg/Cu were so in older ones. At mid study, soil Ca/Fe was higher in the unthinned treatment generally and especially in its unburned portion while K/Cu was higher overall in burned stand portions, most especially in the unthinned treatment. These findings provide insight into the interrelationships of base cations and metallic elements in forest nutrition as influenced by restoration practices.
{"title":"Elemental Ratios in Foliage and Soil of a Jeffrey Pine Stand Subjected to Thinning and Burning Restoration Practices","authors":"R. Walker, R. M. Fecko, Dale W. Johnson, W. W. Miller","doi":"10.4172/2168-9776.1000180","DOIUrl":"https://doi.org/10.4172/2168-9776.1000180","url":null,"abstract":"Forest thinnings accomplished through cut-to-length and whole-tree harvesting followed by a prescribed underburn were assessed for their influences on mineral nutrition in eastern Sierran Jeffrey pine (Pinus jeffreyi Grev. & Balf.). As derived from foliar elemental concentrations determined at six samplings distributed over three growing seasons, molar Ca/Al, Mg/Al, K/Al, Ca/Mn, Mg/Mn, and K/Mn were generally higher in the unthinned treatment and lower in burned stand portions. Conducted under drought conditions, the driest phase of the study resulted in lower Ca/Al, Mg/Al, and K/Al and higher Ca/Mn and Ca/Zn when averaged across treatments. Foliar K/Mn, K/Zn, and K/Cu were generally lower in the early portion of the growing season compared to the late portion. At mid growing season, Mg/Al, K/Al, Mg/Mn, K/Mn, K/Fe, K/Zn, and K/Cu were higher in young needles while Ca/Al, Ca/Fe, Mg/Fe, Ca/Zn, Ca/Cu, and Mg/Cu were so in older ones. At mid study, soil Ca/Fe was higher in the unthinned treatment generally and especially in its unburned portion while K/Cu was higher overall in burned stand portions, most especially in the unthinned treatment. These findings provide insight into the interrelationships of base cations and metallic elements in forest nutrition as influenced by restoration practices.","PeriodicalId":35920,"journal":{"name":"林业科学研究","volume":"1 1","pages":"1-19"},"PeriodicalIF":0.0,"publicationDate":"2016-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75926516","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 : 2016-08-30DOI: 10.4172/2168-9776.1000179
Hong Wei, Xiang Zhao, T. Zhou, Ling Du, Bijian Tang, Wenqian Zhao, Rongyun Tang, Jia Chen
Forest growth is easily influenced and disturbed by extreme climate change. Exploring the spatial and temporal changes of forest biomass and its response to climate change is of significant importance to assess the carbon dynamics of terrestrial ecosystem. During 2009-2012, continuous severe drought happened in southwestern China, and large-scale extreme drought occurred in 2009 and 2010. Although previous studies have revealed the responses of vegetation to the drought in southwestern China, there is no study on quantifying the effects of drought disturbance on forest biomass. In this study, annual forest Biomass Carbon Density (BCD) was estimated first using forest resources statistics of China (1984-2013), the Global Inventory Modeling and Mapping Studies (GIMMS) Normalized Difference Vegetation Index (NDVI) and elevation data in southwestern China. Then the effects of drought disturbance on forest biomass were evaluated through correlation analysis combined with the Palmer Drought Severity Index (PDSI) data. The results showed that: (1) the accuracy of forest BCD was enhanced by using Inventory-satellite-based method, and the accuracy reached R2=0.86 (P<0.001); (2) from 2000 to 2013, the mean BCD in southwestern China was 38.66 Mg C/ha, and was increasing annually with rate of 0.102 Mg C/ha; (3) forest BCD continuously declined due to the drought from 2010 to 2012, and in the extreme drought year 2010, BCD anomaly reduced to -1.004 and returned to 0.371 in 2013. Our results indicate that drought disturbances could significantly impact the forest biomass and the carbon dynamics of terrestrial ecosystem.
{"title":"Effects of Drought Disturbance on Forest Biomass in Southwestern China","authors":"Hong Wei, Xiang Zhao, T. Zhou, Ling Du, Bijian Tang, Wenqian Zhao, Rongyun Tang, Jia Chen","doi":"10.4172/2168-9776.1000179","DOIUrl":"https://doi.org/10.4172/2168-9776.1000179","url":null,"abstract":"Forest growth is easily influenced and disturbed by extreme climate change. Exploring the spatial and temporal changes of forest biomass and its response to climate change is of significant importance to assess the carbon dynamics of terrestrial ecosystem. During 2009-2012, continuous severe drought happened in southwestern China, and large-scale extreme drought occurred in 2009 and 2010. Although previous studies have revealed the responses of vegetation to the drought in southwestern China, there is no study on quantifying the effects of drought disturbance on forest biomass. In this study, annual forest Biomass Carbon Density (BCD) was estimated first using forest resources statistics of China (1984-2013), the Global Inventory Modeling and Mapping Studies (GIMMS) Normalized Difference Vegetation Index (NDVI) and elevation data in southwestern China. Then the effects of drought disturbance on forest biomass were evaluated through correlation analysis combined with the Palmer Drought Severity Index (PDSI) data. The results showed that: (1) the accuracy of forest BCD was enhanced by using Inventory-satellite-based method, and the accuracy reached R2=0.86 (P<0.001); (2) from 2000 to 2013, the mean BCD in southwestern China was 38.66 Mg C/ha, and was increasing annually with rate of 0.102 Mg C/ha; (3) forest BCD continuously declined due to the drought from 2010 to 2012, and in the extreme drought year 2010, BCD anomaly reduced to -1.004 and returned to 0.371 in 2013. Our results indicate that drought disturbances could significantly impact the forest biomass and the carbon dynamics of terrestrial ecosystem.","PeriodicalId":35920,"journal":{"name":"林业科学研究","volume":"53 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2016-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91255720","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 : 2016-07-21DOI: 10.4172/2168-9776.1000E123
M. Nasr
{"title":"Utilization of Treated Wastewater and Sewage Sludge in Forest Ecosystems","authors":"M. Nasr","doi":"10.4172/2168-9776.1000E123","DOIUrl":"https://doi.org/10.4172/2168-9776.1000E123","url":null,"abstract":"","PeriodicalId":35920,"journal":{"name":"林业科学研究","volume":"64 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2016-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83121063","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 : 2016-07-21DOI: 10.4172/2168-9776.1000E124
M. Lucas‐Borja
{"title":"Climate Change and Initial Seedling Recruitment in Mediterranean Forest: The Role of Seed Origin","authors":"M. Lucas‐Borja","doi":"10.4172/2168-9776.1000E124","DOIUrl":"https://doi.org/10.4172/2168-9776.1000E124","url":null,"abstract":"","PeriodicalId":35920,"journal":{"name":"林业科学研究","volume":"13 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2016-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73754060","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 : 2016-07-06DOI: 10.4172/2168-9776.1000175
R. Maiti, H. Rodríguez, A. Kumari
The paper put forward few hypothetical concepts for co-existence and adaptation of woody plant species in a Tamaulipan thorn scrub, Northeastern Mexico. The hypotheses have been put forwarded on the basis of our results on various morphological, anatomical and eco-physiological traits of a Tamaulipan thorn scrub, North-eastern Mexican. Few future research lines are suggested to confirm the hypothesis.
{"title":"Adaptive Morpho-physiological Traits of Woody Plants for Co-existence in a Forest Ecosystem","authors":"R. Maiti, H. Rodríguez, A. Kumari","doi":"10.4172/2168-9776.1000175","DOIUrl":"https://doi.org/10.4172/2168-9776.1000175","url":null,"abstract":"The paper put forward few hypothetical concepts for co-existence and adaptation of woody plant species in a Tamaulipan thorn scrub, Northeastern Mexico. The hypotheses have been put forwarded on the basis of our results on various morphological, anatomical and eco-physiological traits of a Tamaulipan thorn scrub, North-eastern Mexican. Few future research lines are suggested to confirm the hypothesis.","PeriodicalId":35920,"journal":{"name":"林业科学研究","volume":"5 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2016-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72804528","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 : 2016-07-06DOI: 10.4172/2168-9776.1000169
H. Rodríguez, R. Maiti, C. Kumari
Leaves play a vital role in the growth, development and productivity of woody plants in a forest ecosystem. The present paper deals first with a concise review of research advances undertaken globally on leaf traits of trees and shrubs and then a brief synthesis of results of leaf traits in Linares, Northeastern Mexico. A synthesis is made on research advances on leaf traits, leaf morphology and eco-physiology of trees and shrubs at the global levels and few studies in Northeastern Mexico. There exists a large variability in various leaf morphological traits viz. leaf dimensions and eco-physiological traits viz. leaf area, leaf specific area, leaf dry weight etc. The magnitudes of these traits vary depending on environmental conditions.
{"title":"Biodiversity of Leaf Traits in Woody Plant Species in Northeastern Mexico: A Synthesis","authors":"H. Rodríguez, R. Maiti, C. Kumari","doi":"10.4172/2168-9776.1000169","DOIUrl":"https://doi.org/10.4172/2168-9776.1000169","url":null,"abstract":"Leaves play a vital role in the growth, development and productivity of woody plants in a forest ecosystem. The present paper deals first with a concise review of research advances undertaken globally on leaf traits of trees and shrubs and then a brief synthesis of results of leaf traits in Linares, Northeastern Mexico. A synthesis is made on research advances on leaf traits, leaf morphology and eco-physiology of trees and shrubs at the global levels and few studies in Northeastern Mexico. There exists a large variability in various leaf morphological traits viz. leaf dimensions and eco-physiological traits viz. leaf area, leaf specific area, leaf dry weight etc. The magnitudes of these traits vary depending on environmental conditions.","PeriodicalId":35920,"journal":{"name":"林业科学研究","volume":"1 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2016-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83072123","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 : 2016-07-06DOI: 10.4172/2168-9776.1000174
P. Moraga-Suazo, E. Sanfuentes, R. Le-Feuvre
Clonostachys rosea (teleomorph Bionectria ochrouleuca) is a powerful biological control agent (BCA), and has been categorized as a broad-spectrum agent against several phytopathogens affecting different crops and forest species. One possible way by which C. rosea can reduce the disease incidence is the Induced Systemic Resistance (ISR), an event associated to several biochemical changes conditioning plants to resist the attack of pathogens. Several studies have found that C. rosea induces resistance against pathogens in legumes, cereals and other crops, but there is a lack of information about the situation in forest species. Therefore, the main goal of this study was to evaluate the behavior of different C. rosea strains as inductors of resistance against the pathogen Fusarium circinatum Niremberg and O`Donnell in two contrasting genotypes of Pinus radiata D. Don. Ten C. rosea strains were applied to the substrate at 8 and 1 days before confronting P. radiata plants with F. circinatum, which was inoculated into 5 μL droplets at a previously cut shoot. The lesion length produced by the pathogen was measured at 60 days post inoculation. It was found that only the resistant P. radiata genotype showed evidence of ISR, with two C. rosea strains, Cr7 and Cr8, triggering resistance and decreasing lesion length to 48.7% and 47.4%, respectively, when compared to pathogen control. These results demonstrate the potential of some C. rosea strains to produce ISR on P. radiata, but at least for this particular pathosystem, this protection appears to be both dependent on the genotype of the host and the inducer C. rosea strain. This is the first report indicating that C. rosea can act as an inducer of resistance on the P. radiate-F. circinatum pathosystem.
摘要玫瑰克隆病菌(Clonostachys rochrouleuca)是一种强效生物防治剂(BCA)，是一种广谱防治多种植物病原菌的生物防治剂。一种可能的方法是诱导系统抗性(ISR)，这是一种与几种生化变化有关的事件，使植物能够抵抗病原体的攻击。几项研究发现，在豆类、谷物和其他作物中，玫瑰念珠菌诱导对病原体的抗性，但在森林物种中缺乏有关情况的信息。因此，本研究的主要目的是评价不同玫瑰红梭菌菌株作为两种不同基因型辐射松(Pinus radiata D. Don)对Niremberg和O 'Donnell镰刀菌(Fusarium circinatum Niremberg)抗性诱变剂的行为。将10株玫瑰红孢菌分别于辐射假单胞菌与环纹假单胞菌接触前8天和1天接种于底物上，并将环纹假单胞菌接种于先前扦插的5 μL液滴中。接种后60天测定病原菌产生的损伤长度。结果发现，只有耐药的辐射假单胞菌基因型表现出ISR，与对照相比，2株玫瑰假单胞菌Cr7和Cr8分别诱发了抗性和损伤长度的减少，分别为48.7%和47.4%。这些结果表明，一些玫瑰红孢杆菌菌株对辐射假单胞菌产生ISR的潜力，但至少对于这种特殊的病理系统，这种保护似乎既依赖于宿主的基因型，也依赖于诱导剂玫瑰红孢杆菌菌株。这是第一次有报道表明玫瑰红曲霉可以作为病原菌的抗性诱导剂。circinatum pathosystem。
{"title":"Induced Systemic Resistance Triggered by Clonostachys rosea Against Fusarium circinatum in Pinus radiata","authors":"P. Moraga-Suazo, E. Sanfuentes, R. Le-Feuvre","doi":"10.4172/2168-9776.1000174","DOIUrl":"https://doi.org/10.4172/2168-9776.1000174","url":null,"abstract":"Clonostachys rosea (teleomorph Bionectria ochrouleuca) is a powerful biological control agent (BCA), and has been categorized as a broad-spectrum agent against several phytopathogens affecting different crops and forest species. One possible way by which C. rosea can reduce the disease incidence is the Induced Systemic Resistance (ISR), an event associated to several biochemical changes conditioning plants to resist the attack of pathogens. Several studies have found that C. rosea induces resistance against pathogens in legumes, cereals and other crops, but there is a lack of information about the situation in forest species. Therefore, the main goal of this study was to evaluate the behavior of different C. rosea strains as inductors of resistance against the pathogen Fusarium circinatum Niremberg and O`Donnell in two contrasting genotypes of Pinus radiata D. Don. Ten C. rosea strains were applied to the substrate at 8 and 1 days before confronting P. radiata plants with F. circinatum, which was inoculated into 5 μL droplets at a previously cut shoot. The lesion length produced by the pathogen was measured at 60 days post inoculation. It was found that only the resistant P. radiata genotype showed evidence of ISR, with two C. rosea strains, Cr7 and Cr8, triggering resistance and decreasing lesion length to 48.7% and 47.4%, respectively, when compared to pathogen control. These results demonstrate the potential of some C. rosea strains to produce ISR on P. radiata, but at least for this particular pathosystem, this protection appears to be both dependent on the genotype of the host and the inducer C. rosea strain. This is the first report indicating that C. rosea can act as an inducer of resistance on the P. radiate-F. circinatum pathosystem.","PeriodicalId":35920,"journal":{"name":"林业科学研究","volume":"55 2","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2016-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72496588","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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