|Table of Contents|

Effects of Exogenous Melatonin on Growth and Physiological Indexes of Tomato Seedlings Under NaHCO3 Stress

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2022年09
Page:
1-9
Research Field:
Publishing date:

Info

Title:
Effects of Exogenous Melatonin on Growth and Physiological Indexes of Tomato Seedlings Under NaHCO3 Stress
Author(s):
JIANG Xiyao; HUANG Junjie; ZHOU Yingjie; NIU Ning; LIU Huiying; DIAO Ming
(School of Agriculture,Shihezi University/Key Laboratory of Physiology and Germplasm Resources Utilization Corps of Special Fruit and Vegetable Cultivation,Shihezi,Xinjiang 832003)
Keywords:
tomato seedlings; alkali stress; melatonin; growth characteristics; physiological property
PACS:
-
DOI:
10.11937/bfyy.20213909
Abstract:
Taking tomato ‘Riegle 87-5’ as test materials,the effects of spraying different concentrations of melatonin (50-500 μmol?L-1) on the growth and physiological indexes of tomato seedlings under NaHCO3 stress,tomato seedlings were processed by hydroponic method and simulated 60 mmol?L-1 NaHCO3 environment,in order to provide reference for using MT to solve alkali stress in tomato production.The results showed that compared with CK,MT0 significantly reduced the plant height and fresh and dry weight of aboveground and underground parts of seedlings,MT200 significantly alleviated the morphological indexes of plant growth and development,and increased the plant height,fresh weight of aboveground and fresh dry weight of underground parts by 31.57%,73.86%,1.71 and 1.94 times.Compared with CK,Pn,Gs,Ci and Tr decreased significantly under MT0 treatment,and photosynthetic characteristics alleviated most significantly under MT400 treatment.In terms of osmotic stress,MT0 significantly increased the relative electrical conductivity (REC),malondialdehyde (MDA),hydrogen peroxide (H2O2) and superoxide anion (O?2) production rates,significantly reduced the activities of SOD and POD in tomato leaves,and stimulated the activities of CAT and APX enzymes compared with CK.MT treatment,especially MT400 could significantly increase the activities of SOD and POD,and decrease REC,MDA,H2O2,O?2.In conclusion,MT in a certain concentration range could improve the growth morphology of tomato seedlings under alkali stress (60 mmol?L-1),enhance photosynthesis,improve the activity of antioxidant enzymes,reduce cell membrane lipid peroxidation,and ultimately improve the alkali tolerance of seedlings.

References:

[1]范远,任长忠,李品芳,等.盐碱胁迫下燕麦生长及阳离子吸收特征[J].应用生态学报,2011,22(11):2875.[2]KHAN A,NUMAN M,KHAN A L,et al.Melatonin：Awakening the defense mechanisms during plant qxidative stress[J].Plants,2020,9(4)：407.[3]BISWOJIT D,WAQAR I,MIN L,et al.Melatonin mediates enhancement of stress tolerance in plants[J].International Journal of Molecular Sciences,2019,20(5)：1040.[4]JUN N,QIAO J W,AFZAL S F,et al.Exogenous melatonin confers cadmium tolerance by counterbalancing the Hydrogen peroxide homeostasis in wheat seedlings[J].Molecules (Basel,Switzerland),2018,23(4)：799.[5]周永海,杨丽萍,马荣雪,等.外源褪黑素对高温胁迫下甜瓜幼苗抗氧化特性及其相关基因表达的影响[J].西北农业学报,2020,29(5):97-103.[6]吴雪霞,朱宗文,张爱冬,等.外源褪黑素对低温胁迫下茄子幼苗生长及其光合作用和抗氧化系统的影响[J].西北植物学报,2017,37(12):2427-2434.[7]LI J,ZHAO C,ZHANG M,et al.Exogenous melatonin improves seed germination in Limonium bicolor under salt stress[J].Plant Signaling & Behavior,2019,14(11)：1659705.[8]李猛,陈栋,李秀妮,等.盐胁迫下外源褪黑素对烟草幼苗抗氧化特性和光合特性的影响[J].中国农业科技导报,2019,21(2):141-147.[9]GAO W,FENG Z,BAI Q,et al.Melatonin-mediated regulation of growth and antioxidant capacity in salt-tolerant naked oat under salt stress[J].International Journal of Molecular Sciences,2019,20(5)：1176.[10]倪知游,夏惠,高帆,等.外源褪黑素对猕猴桃幼苗盐胁迫的缓解作用[J].四川农业大学学报,2017,35(4):535-539.[11]彭玲,李爱,杨漫,等.外施褪黑素对盐胁迫下红花生长和生理特性的影响[J].中药材,2019,42(8):1730-1737.[12]高立杨,刘兵,张瑞,等.褪黑素对盐碱复合胁迫下垂丝海棠光合及生理特性的影响[J],甘肃大学学报，2020,55(2):90-97.[13]李合生.植物生理生化实验原理和技术[M].北京：高等教育出版社，2000.[14]赵世杰.植物生理学实验指导[M].北京：中国农业科技出版社,1998.[15]PARIDA A K,DAS A B,MOHANTY P.Investigations on the antioxidative defence responses to NaCl stress in a mangrove,Bruguiera parviflora：Differential regulations of isoforms of some antioxidative enzymes[J].Plant Growth Regulation,2004,42(3):213-226.[16]何磊,陆兆华,管博,等.盐碱胁迫对两种高粱种子萌发及幼苗生长的影响[J].西北植物学报,2012,32(2):362-369.[17]LIU N,JIN Z,WANG S,et al.Sodic alkaline stress mitigation with exogenous melatonin involves reactive oxygen metabolism and ion homeostasis in tomato[J].Scientia Horticulturae,2015,181：18-25.[18]彭玲,李爱,杨漫,等.外施褪黑素对盐胁迫下红花生长和生理特性的影响[J].中药材,2019,42(8):1730-1737.[19]尹赜鹏,王珍琪,齐明芳,等.外施褪黑素对盐胁迫下番茄幼苗光合功能的影响[J].生态学杂志,2019,38(2):467-475.[20]张远兰,胡鑫,蔡金峰,等.Na2SO4和Na2CO3胁迫下苦楝幼苗的形态及光合生理特性[J].广西植物,2021，41(2):195-205.[21]张纪涛,徐猛,韩坤,等.盐胁迫对番茄幼苗的营养及生理效应[J].西北农业学报,2011,20(2):128-133.[22]齐晓媛,王文莉,胡少卿,等.外源褪黑素对高温胁迫下菊花光合和生理特性的影响[J].应用生态学报,2021,32(7):2496-2504.[23]李本峰,杜红梅.褪黑素预处理对多年生黑麦草抗旱性的影响[J].上海交通大学学报(农业科学版),2018,36(3):21-26.[24]MITTLER R,van DERAUWERA S,GOLLERY M,et al.Reactive oxygen gene network of plants[J].Trends in Plant Science,2004,9(10):490-498.[25]APEL K.Reactive oxygen species：Metabolism,oxidative stress,and signal transduction[J].Annu Rev Plant Biol,2004,55：373-399.[26]SCHIPPERS J H,FOYER C H,van DONGEN J T.Redox regulation in shoot growth,SAM maintenance and flowering[J].Current Opinion in Plant Biology,2016（29）：121-128.[27]NOCTOR G,FOYER C H.Ascorbate and glutathione：Keeping active oxygen under control[J].Annual Review of Plant Physiology & Plant Molecular Biology,1998,49(1)：249-279.[28]徐向东,孙艳,孙波,等.高温胁迫下外源褪黑素对黄瓜幼苗活性氧代谢的影响[J].应用生态学报,2010,21(5):1295-1300.[29]SCANDALIOS J G,GUAN L M,POLIDOROS A N.Catalases in plants：Gene structure,properties,regulation,and expression[J].Cold Spring Harbor Monograph Archive,1997（34）:343-406.[30]CORPAS F J,PALMA J M,SANDALIO L M,et al.Peroxisomal xanthine oxidoreductase：Characterization of the enzyme from pea (Pisum sativum L.) leaves[J].Journal of Plant Physiology,2008,165(13):1319-1330.[31]SHARMA P,DUBEY R S.Drought induces oxidative stress and enhances the activities of antioxidant enzymes in growing rice seedlings[J].Plant Growth Regulation,2005,46(3):209-221.[32]CHEN Y E,MAO J J,SUN L Q,et al.Exogenous melatonin enhances salt stress tolerance in maize seedlings by improving antioxidant and photosynthetic capacity[J].Physiologia Plantarum,2018,164(3):349-363.[33]李猛,陈栋,李秀妮,等.盐胁迫下外源褪黑素对烟草幼苗抗氧化特性和光合特性的影响[J].中国农业科技导报,2019,21(2):141-147.[34]李冬,王艳芳,王悦华,等.外源褪黑素对镉胁迫下豌豆种子萌发、幼苗抗性生理及镉含量的影响[J].核农学报,2019,33(11):2271-2279.

Memo

Memo:
-
Last Update: 2022-06-07