Effects of Abietic Acid on Seed Germination,Seedling Growth and Microbial Population in Rhizosphere of Hot Pepper

doi:10.7668/hbnxb.2010.05.032

Abstract

Abstract: The effects of abietic acid on seed germination,seedling growth and rhizosphere microbial populations of hot pepper were discussed. The allelochemicals in root exudates of hot pepper and monoculture soil were studied by GC-MS methods. The results showed that the main allelochemicals were identified as abietic acid,methyl tetradecanoate,octadecanoic acid,methyl ester,and acetamide 2-chloro-N-(ethoxymthyl) -N-(2-ethyl-6-methylphenyl,Allelopathic effects of abietic acid exudated by hot pepper root to seedling germination,growth and microbial population in rhizosphere soil were studied by using simulative method. The bioassay results indicated that abietic acid promoted seed germination and seedling growth of hot pepper at 0. 05 g /L. Whereas,inhibitory effects were found at other concentrations,and effects inhibitory rates were enhanced along with concentration increase. The maximum stimulative effect occurred at 0. 25 g /L. Compared with the control,abietic acid changed microbial community structure in rhizosphere of hot pepper,with decrease of actinomyces(A) and the ratios of A to F,increase of bacteria(B) ,fungi(F) ,and the ratios of B to F. The results indicated that abietic acid have strong autotoxic effects on seed germination,seedling growth and microbial population in rhizosphere soil of hot pepper.

Key words: Hot pepper, Allelopathy, Abietic acid, Autotoxicity

CLC Number:

S41.3

ZHOU Baoli, LI Yan, LI Dong, LIU Na, NING Fanhua, HOU Yongxia. Effects of Abietic Acid on Seed Germination,Seedling Growth and Microbial Population in Rhizosphere of Hot Pepper[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2010, 25(5): 155-160. doi: 10.7668/hbnxb.2010.05.032.

/ / Recommend / Download Citations

URL: http://www.hbnxb.net/EN/10.7668/hbnxb.2010.05.032

http://www.hbnxb.net/EN/Y2010/V25/I5/155

References

[1] 林文雄,熊君,周军建,等.化感植物根际生物学特性研究现状与展望[J].中国生态农业学报,2007,15(4):1-8.

[2] 冯志红,闫立英,王久兴,等.连作栽培中自毒物质对黄瓜种子萌发和幼苗生长的影响[J].种子,2005,24(6):41-44.

[3] 张晓玲,潘振刚,周晓峰,等.自毒作用与连作障碍[J].土壤通报,2007,38(4):781-784.

[4] 王茹华,周宝利,张启发,等.茄子根系分泌物中香草醛和肉桂酸对黄萎菌的化感效应[J].生态学报,2006,26(9):3152-3155.

[5] 陈绍莉,周宝利,王茹华,等.嫁接对茄子根系分泌物中肉桂酸和香草醛的调节效应[J].应用生态学报,2008,19(11):394-2399.

[6] 侯永侠,周宝利,吴晓玲,等.辣椒根系分泌物化感作用的研究[J].沈阳农业大学学报,2007,38(4):504-507.

[7] Zeng R S.Review on bioassay methods for allelopathy research[J].Chinese Journal of Applied Ecology,1992,10(1):123-126.

[8] 郝建军,刘延吉.植物生理学实验技术[M].沈阳:辽宁科学技术出版社,2001:162-166.

[9] 王茹华,周宝利,张启发,等.嫁接对茄子根际微生物种群数量的影响[J].园艺学报,2005,32(1):124-126.

[10] Willamson G B,Richardson D.Bioassays for allelopathy:Measuring treatment responses with independent controls[J].Chen Ecol,1988,14(1):181-187.

[11] 彭志红,彭克勤.渗透胁迫下植物脯氨酸积累的研究进展[J].中国农学通报,2002,18(4):80-83.

[12] 王璞,赵秀琴.几种化感物质对棉花种子萌发及幼苗生长的影响[J].中国农业大学学报,2001,6(3):26-31.

[13] 宋亮,潘开文,王进闯,等.酚酸类物质对苜蓿种子萌发及抗氧化物酶活性的影响[J].生态学报,2006,26(20):3393-3403.

[14] 李夏,周宝利,陈绍莉,等.茄子自毒物质对辣椒种子萌发及枯萎菌的化感效应[J].生态学报,2009,29(2):960-965.

[15] Hisashi K N,Takeshi I,Noriko S,et al.Isolation and identify cation of a potent allelopathic substance in rice root exudates[J].Physiol Plantarum,2002,115:401-405.

[16] 谷文祥,段舜山,骆世明.萜类化合物的生态特征及其对植物的化感作用[J].华南农业大学学报,1998,19:108-112.

[17] Bradow J M,Connick W J.Volatile seed germination inhibitors from plant residues[J].Chem Ecol,1990,16:645-666.

[18] Picman J P,Picman A K.Autotoxicity in parthenium hysterophorus and its possible role in control of germination[J].Biochem Syst Ecol,1984,12:287-292.

[19] 何海斌,何华勤,林文雄,等.不同化感水稻品种根系分泌物中萜类化合物的差异分析[J].应用生态学报,2005a,16(4):732-736.

[20] 何海斌,陈祥旭,林瑞余,等.化感水稻PI312777苗期根系分泌物中化学成分分析[J].应用生态学报,2005b,16(12):2383-2388.

[21] 张淑红,周宝利,张磊,等.苦参提取物对茄子黄萎病抗性及根际微生物的影响[J].沈阳农业大学学报,2009,40(2):215-217.

[22] 尹玉玲,周宝利,李云鹏,等.嫁接对茄子连作土壤生物活性及种子萌发和幼苗生长的影响[J].生态学杂志,2009,28(4):638-642.

Please choose a citation manager

Content to export