根系修剪和接种丛枝菌根真菌对枳实生苗根系形态的影响
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摘要
为探究根系修剪和接种丛枝菌根(AM)真菌对柑桔根系和植株生长的影响,以盆栽实生枳幼苗为试材,对根系修剪(切除1/2主根)和接种不同AM真菌(Diversispora versiformis、Funneliformis mosseae和Rhizoglomus intraradices)处理后植株生物量和根系形态变化进行了比较研究。结果表明,除D.versiformis外,根系修剪能显著提高F.mosseae和R.intraradices的侵染率。根系修剪降低了非菌根化植株地上部干重和植株总干重,但接种F.mosseae和R.intraradices后植株地上部干重、根系干重和植株总干重均显著增加,且接种F.mosseae的效果更好。根系修剪显著降低了植株主根长度,但三级侧根数量和一级侧根密度均显著增加,根系修剪下接种F.mosseae增加侧根数量和一级侧根密度的总体效应最优。根系修剪后接种F.mosseae和R.intraradices的植株根系表面积、投影面积和体积均显著增加,并增加了0～1.5 cm短根系的总长度。根系修剪和AM真菌对枳侧根的发生存在一定的叠加效应。
引文
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[30]CASIMIRO I,BEECKMAN T,GRAHAM N,et al.Dissecting Arabidopsis lateral root development[J].Trends in Plant Science,2003,8:165-171
[31]MEIXNER C,VEGVARI G,LUDWIG-MüLLER J,et al.Two defined alleles of the LRR receptor kinase GmNARKin supernodulating soybean govern differing autoregulation of mycorrhization[J].Physiologia Plantarum,2007,130:261-270
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[33]VYSOTSKAYA L B,TIMERGALINA L N,SIMO-NYAN M V,et al.Growth rate,IAA and cytokinin content ofwheat seedling after root pruning[J].Plant Growth Regulation,2001,33:51-57
[34]PADILLA I M G,ENCINA C L.Changes in root morphology accompanying mycorrhizal alleviation of phosphorus deciency in micropropagated Annona cherimola Mill[J].Scientia Horticulturae,2005,106:360-369
[2]VILCHES-BARRO A,MAIZEL A.Talking through walls:mechanisms of lateral root emergence in Arabidopsis thaliana[J].Current Opinion in Plant Biology,2015,23:31-38
[3]DE SMET I,WHITE P J,BENGOUGH A G,et al.Analyzing lateral root development:how to move forward[J].Plant Cell,2012,24(1):15-20
[4]JING D W,LIU F C,WANG M Y,et al.Effects of root pruning on the physicochemical properties and microbial activities of poplar rhizosphere soil[J].PloS ONE,2017,12(11):e0187685
[5]WANG Y F,BERTELSEN M G,PETERSEN K K,et al.Effect of root pruning and irrigation regimes on leaf water relations and xylem ABA and ionic concentrations in pear trees[J].Agricultural Water Management,2014,135:84-89
[6]YAO Q,WANG L R,ZHU H H,et al.Effect of arbuscular mycorrhizal fungal inoculation on root system architecture of trifoliate orange(Poncirus trifoliata L.Raf.)seedlings[J].Scientia Horticulturae,2009,121:458-461
[7]POKHAREL R,MARAHATT S P,HANDOO Z A,et al.Nematode community structures in different deciduous tree fruits and grape in Colorado,USA and impact of organic peach and apple production practices[J].European Journal of Soil Biology,2015,67:59-68
[8]俞超,章泽焕,汪财生,等.不同断根方式对“鄞红”葡萄生长及品质的影响[J].中国南方果树,2015,44(3):117-119
[9]吴海芹.限根栽培对苹果幼树生长发育及相关生理机制影响的研究[D].杨凌:西北农林科技大学,2017
[10]YANG S J,DU X Y,YU Y,et al.Effects of root pruning on physicochemical characteristics and biological properties of winter jujube rhizosphere soil[J].Plant Soil and Environment,2011,57:493-498
[11]LYNCH J P.Root architecture and plant productivity[J].Plant Physiology,1995,109:7-13
[12]任永哲,徐艳花,丁锦平,等.非生物因素调控植物根系发育可塑性的研究进展[J].中国农学通报,2011,27(9):34-38
[13]吴强盛,周开兵,夏仁学,等.柑桔丛枝菌根发育状况田间调查[J].亚热带植物科学,2004,33(2):39-40
[14]CRUZ C,GREEN J J,WATSON C A,et al.Functional aspects of root architecture and mycorrhizal inoculation with respect to nutrient uptake capacity[J].Mycorrhiza,2004,14(3):177-184
[15]WU Q S,HE X H,ZOU Y N,et al.Arbuscular mycorrhizas alter root system architecture of Citrus tangerine through regulating metabolism of endogenous polyamines[J].Plant Growth Regulation,2012,68:27-35
[16]PHILLIPS J M,HAYMAN D S.Improved procedures for clearing roots and staining parasitic and vesicular-arbuscular mycorrhizal fungi for rapid assessment of infection[J].Transactions of British Mycological Society,1970,55:158-161
[17]HUANG Y M,SRIVASTAVA A K,ZOU Y N,et al.Mycorrhizal-induced calmodulin mediated changes in antioxidant enzymes and growth response of drought-stressed trifoliate orange[J].Frontiers in Microbiology,2014,5:682
[18]邹英宁,吴强盛,李艳,等.丛枝菌根真菌对枳根系形态和蔗糖、葡萄糖含量的影响[J].应用生态学报,2014,25(4):1125-1129
[19]杨海水,王琪,郭伊,等.丛枝菌根真菌群落与植物系统发育的相关性分析[J].植物生态学报,2015,39(4):383-387
[20]林志鹏.切根育苗对马尾松苗木及幼林生长的效应[J].西南林学院学报,2000,20(4):196-199
[21]DU Z Y,XING S J,MA B Y,et al.Effects of root pruning on thegrowth and rhizosphere soil characteristics of short-rotation closed-canopypoplar[J].Forest Systems,2012,21(2):236-246
[22]井大炜,王明友,马海林,等.促进欧美I-107杨生长并提高根际土壤微生物多样性的适宜根剪位置[J].植物营养与肥料学报,2018,24(3):833-840
[23]OLH B,BRIRE C,BCARD G,et al.Nod factors and a diffusible factor from arbuscular mycorrhizal fungi stimulate lateral root formation in Medicago truncatula via the DMI1/DMI2signalling pathway[J].Plant Journal,2005,44:195-207
[24]HUANG Y M,ZOU Y N,WU Q S.Alleviation of drought stress by mycorrhizas is related to increased root H2O2efflux in trifoliate orange[J].Scientific Reports,2017,7:42335
[25]GUO D L,MITCHELL R J,HENDRICKS J J.Fine root branch orders respond differentially to carbon source sink manipulations in a longleaf pine forest[J].Oecologia,2004,140:450-457
[26]WANG W N,WANG Y,HOCH G,et al.Linkage of root morphology to anatomy with increasing nitrogen availability in six temperate tree species[J].Plant Soil,2018,425:189-200
[27]ZOU Y N,HUANG Y M,WU Q S,et al.Mycorrhiza-induced lower oxidative burst is related with higher antioxidant enzyme activities,net H2O2effluxes,and Ca2+influxes in trifoliate orange roots under drought stress[J].Mycorrhiza,2015,25:143-152
[28]杜洋文,邓先珍,徐春永,等.不同断根方式对美国山核桃苗木生长的影响[J].森林资源培育,2015,29(1):32-34
[29]吴娇娇,张谦,刘士平,等.细胞周期因子与植物根系发育[J].植物生理学通讯,2008,44(4):621-629
[30]CASIMIRO I,BEECKMAN T,GRAHAM N,et al.Dissecting Arabidopsis lateral root development[J].Trends in Plant Science,2003,8:165-171
[31]MEIXNER C,VEGVARI G,LUDWIG-MüLLER J,et al.Two defined alleles of the LRR receptor kinase GmNARKin supernodulating soybean govern differing autoregulation of mycorrhization[J].Physiologia Plantarum,2007,130:261-270
[32]LUDWIG-MLLER J,KALDORF M,SUTTER EG,et al.Indole-3-butyric acid(IBA)is enhanced in young maize(Zea mays L.)roots colonized with the arbuscular mycorrhizal fungus Glomus intraradices[J].Plant Science,1997,125:153-162
[33]VYSOTSKAYA L B,TIMERGALINA L N,SIMO-NYAN M V,et al.Growth rate,IAA and cytokinin content ofwheat seedling after root pruning[J].Plant Growth Regulation,2001,33:51-57
[34]PADILLA I M G,ENCINA C L.Changes in root morphology accompanying mycorrhizal alleviation of phosphorus deciency in micropropagated Annona cherimola Mill[J].Scientia Horticulturae,2005,106:360-369
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