|Table of Contents|

Effects of High Temperature Stress on Growth and Chlorophyll Fluorescence Parameters of Pugionium cornutum and Pugionium dolabratum Seedlings

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2024年10
Page:
1-8
Research Field:
Publishing date:

Info

Title:
Effects of High Temperature Stress on Growth and Chlorophyll Fluorescence Parameters of Pugionium cornutum and Pugionium dolabratum Seedlings
Author(s):
ZHANG Shaohua1; ZHANG Xiaohui2; YANG Zhongren1; HUANG Xiumei1; ZHANG Fenglan1; NING Kezhen1
(1.College of Horticulture and Plant Protection,Inner Mongolia Agricultural University,Hohhot,Inner Mongolia 010010；2.Institute of Vegetables and Flowers,Chinese Academy of Agricultural Sciences/Vegetable Crop Gene Resources and Germplasm Creation Beijing Scientific Observation Experimental Station,Ministry of Agriculture and Rural Affairs,Beijing 100081)
Keywords:
P.cornutum; P.dolabratum; high temperature stress; photosynthesis; chlorophyll fluorescence dynamic parameters
PACS:
S 649
DOI:
10.11937/bfyy.20233596
Abstract:
P.cornutum and P.dolabratum were used as test materials.The response of P.cornutum and P.dolabratum to high temperature was studied by artificial simulated drought test.The physiological and ecological adaptability of P.cornutum to high temperature in desert,as well as the change of chlorophyll fluorescence under high temperature stress and its response mechanism to high temperature were discussed,in order to provide reference for the industrial cultivation of P.cornutum.The results showed that the seedlings of P.cornutum and P.dolabratum showed slight heat injury symptoms,P.dolabratum 40 ℃/24 hours,P.cornutum 45 ℃/2 hours；heat treatment directly led to plant death,P.cornutum 50 ℃/24 hours,60 ℃/3 hours；P.dolabratum 45 ℃/24 hours,50 ℃/8 hours and 60 ℃/2 hours.When the temperature increased to 40 ℃,through the maximum fluorescence yield Fm and variable fluorescence Fv analysis,the electron transfer of P.cornutum and P.dolabratum through PSⅡ was significantly inhibited,and the number of QA oxidation state in PSⅡ reaction center decreased,so that the ability of QA → QB to transfer electrons decreased.When the temperature increased to 60 ℃,the initial fluorescence (Fo) reflected that the PSⅡ reaction center was irreversibly deactivated.The 60 ℃ of P.cornutum was 1.51 times that of 30 ℃,and the P.dolabratum was 3.07 times,indicating that the PSⅡ reaction center of P.dolabratum was more seriously damaged than that of P.cornutum at 60 ℃.At the same time,the changes of Fv/Fm,Fv/Fo and Fm/Fo were consistent.The temperature of 50 ℃ decreased significantly,and the temperature of 60 ℃ was close to 0.The photosynthesis of P.dolabratum began to decrease significantly at 40 ℃,indicating that 50 ℃ significantly affected the photosynthesis of P.dolabratum,while 40 ℃ significantly affected the photosynthesis of P.dolabratum,and the photosynthesis of both was almost lost at 60 ℃.Based on the analysis of heat injury symptoms and chlorophyll fluorescence dynamic parameters of P.cornutum and P.dolabratum seedlings,both of them were resistant to high temperature,showing adaptability to the sand area environment,and also indicating that P.cornutum was more resistant to high temperature than P.dolabratum.

References:

［1］薛焕焕.沙芥营养成分和沙芥多酚的提取、纯化及其生物活性研究［D］.西安:陕西师范大学,2018.［2］崔彦农.旱生植物沙芥耐氯性及其Cl-转运关键基因的功能研究［D］.兰州:兰州大学,2021.［3］郑清岭.沙芥属植物干旱胁迫响应机制［D］.呼和浩特:内蒙古农业大学,2018.［4］郑清岭,杨忠仁,张晓艳,等.干旱胁迫对沙芥和斧形沙芥抗坏血酸含量及其代谢相关酶的影响［J］.植物生理学报,2018,54(12):1865-1874.［5］高子舒,徐康宁,乌仁格格.沙芥的研究现状分析［J］.广东化工,2018,45(8):138,157.［6］王萍,张希吏,石磊.干旱胁迫下沙芥幼苗叶片光合特性和叶绿素荧光参数的变化［J］.干旱地区农业研究,2017,35(3):159-163.［7］何小艳.高温和淹水胁迫对不结球白菜生长发育的影响［D］.南京:南京农业大学,2019.［8］INNES H,TSAI S M,PIERREHUMBERT R T.The runaway greenhouse effect on hycean worlds［J］.The Astrophysical Journal,2023,953(2):168.［9］BOURNE-WORSTER S,FEIGHAN O,MANBY F R.Charge transfer as a mechanism for chlorophyll fluorescence concentration quenching［J］.Proceedings of the National Academy of Sciences of the United States of America,2023,120(5):e2210811120.［10］高璐,李晓锋,董言笑,等.不结球白菜光合作用及叶绿素荧光参数分析［J/OL］.分子植物育种,（2023-03-31）［2024-01-29］.https://kns.cnki.net/kns8s/defaultresult/index?crossids=In order to provide a reference basis for the industrial cultivation of sand vegetables.［11］陈贻竹,李晓萍,夏丽,等.叶绿素荧光技术在植物环境胁迫研究中的应用［J］.热带亚热带植物学报,1995,3(4):79-86.［12］杨甲定,赵哈林,张铜会.黄柳与垂柳的耐热性和耐旱性比较研究［J］.植物生态学报,2005,29(1):42-47.［13］张谧,王慧娟,于长青.超旱生植物沙冬青高温胁迫下的快速叶绿素荧光动力学特征［J］.生态环境学报,2009,18(6):2272-2277.［14］DAI J,GAO H,DAI Y,et al.Changes in activity of energy dissipating mechanisms in wheat flag leaves during senescence［J］.Plant Biol,2004（6）: 171-177.［15］CHEN H X,GAO H Y,AN S Z,et al.Dissipation of excess energy in mehler-peroxidase reaction in Rumex leaves during salt shock［J］.Photosynthetica,2004,42(1):117-122.［16］FRYER M J,ANDREWS J R,OXBOROUGH K,et al.Relationship between CO2 assimilation,photosynthetic electron transport,and active O2 metabolism in leaves of maize in the field during periods of low temperature［J］.Plant Physiology,1998,116(2):571-580.［17］CHEN H X,LI W J,AN S Z,et al.Characterization of PSⅡ photochemistry and thermostability in salt-treated Rumex leaves［J］.Journal of Plant Physiology,2004,161(3):257-264.［18］LU C,ZHANG J.Changes in photosystem Ⅱ function during senescence of wheat leaves［J］.Physiologia Plantarum,1998,104(2):239-247.［19］张辉,张蓓蓓,景琦,等.不同小麦品种种子萌发生长、叶片叶绿素含量和荧光动力学特征差异分析［J］.江西农业学报,2019,31(9):9-15.［20］张丽华,石磊,李素华,等.高温胁迫下3种多肉植物的生理指标变化及其适应性评价［J］.安徽农学通报,2021,27(12):10-12,158.［21］ZHANG J,MAUN M A.Effects of sand burial on seed germination,seedling emergence,survival,and growth of Agropyron psammophilum［J］.Canadian Journal of Botany,1990,68(2):304-310.［22］MEHALAINE S,MENASRIA T,CHENCHOUNI H.Screening of seed germination requirements of some native plants of the Mediterranean region［J］.Scientia Horticulturae,2023,312:111838.［23］赵玉宏.应用Logistic方程测定冷季型草坪草抗热性研究［J］.湖北农业科学,2004,43(4):108-110.［24］崔庆梅,吴利荣,陈斐,等.高温胁迫对黄瓜幼苗生理生化及光合作用的影响［J］.延安大学学报(自然科学版),2021,40(1):23-26,31.［25］崔秀萍.浑善达克沙地黄柳生理生态适应性研究［D］.呼和浩特:内蒙古农业大学,2007.［26］胡文海,齐超,胡雪华,等.恢复期不同光强对低夜温后番茄叶片快速叶绿素荧光诱导动力学特征的影响［J］.井冈山大学学报(自然科学版),2022,43(2):41-47,66.［27］YANXIN X,XUEJIAN L,HUAQIANG D, et al.Spatiotemporal variation in bamboo Solar-induced chlorophyll fluorescence (SIF) in China based on the global Orbiting Carbon Observatory-2 (OCO-2) carbon satellite and study on the response to climate and terrain［J］.GIScience Remote Sensing,2023,60(1):2-15.［28］杨芬芬,古丽孜叶·哈力克,艾力江·麦麦提,等.外源海藻糖对低温胁迫下哈密瓜幼苗光合作用的影响［J］.北方园艺,2023(5):27-38.

Memo

Memo:
-
Last Update: 2024-06-06