Untitled Document
Contact Us    |   Register
SITE SEARCH
HOME
ONLINE COMMUNITY
MEMBERSHIP
MEETINGS & EVENTS
PUBLICATIONS/RESOURCES
CAREERS
GOVERNANCE
SECTIONS
AWARDS & FUNDING
EDUCATION & RESEARCH
PUBLIC AFFAIRS
EDUCATION FOUNDATION
ABOUT US


seo services

garcinia cambogia extract

cash loans

Chapter 14

Respiration and
Photorespiration

CHAPTER OUTLINE
Introduction
14.1 Overview of respiration
14.2 Citric acid cycle
14.3 Plant mitochondrial electron transport
14.4 Plant mitochondrial ATP synthesis
14.5 Regulation of mitochondrial respiration
14.6 Interactions between mitochondria and other cellular compartments
14.7 Biochemical basis of photorespiration
14.8 Photorespiratory pathway
14.9 Role of photorespiration in plants

James N. Siedow
David A. Day

 

 

Chapters 12 and 13 have described how plants use light energy to assimilate carbon into sugars and starch and how these molecules are subsequently broken down and converted into organic acids and other compounds. In this chapter we examine aerobic respiration— the further oxidation of these compounds to CO2 and H2O in the mitochondrion—and review the mechanisms by which the energy released during respiration is conserved as ATP, a process called oxidative phosphorylation. We examine how plants can minimize ATP production while maintaining respiration rates, a mitochondrial attribute that may affect plant responses to environmental stress. We also describe how mitochondria and other cellular compartments interact by means of substrate shuttles across the inner mitochondrial membrane.
      In addition to aerobic respiration, another respiratory process takes place in the leaves of many plants. This novel process, photorespiration, is the light-dependent release of CO2 and uptake of O2. The O2 uptake occurs in the chloroplast as a result of the oxygenase reaction of Rubisco, which leads to production of phosphoglycolate. Metabolism of this compound involves a complex interaction among chloroplasts, peroxisomes, and mitochondria and leads to release of CO2. Although photorespiration in effect drains carbon from plants and adversely affects growth, the process seems to be an unavoidable side reaction of CO2 fixation in most plants. Some plants, however, have evolved special anatomical and biochemical features that minimize the oxygenase reaction. These plants, known as C4 plants and Crassulacean acid metabolism (CAM) plants (see Chapter 12), demonstrate very low rates of photorespiration.


© Copyright American Society of Plant Biologists 2013 (All Rights Reserved)


Debugging Information
ColdFusion Server Enterprise 9,0,1,274733
Template /publications/biotext/intros/ch14.cfm
Time Stamp 09-Feb-16 04:48 AM
Locale English (US)
User Agent CCBot/2.0 (http://commoncrawl.org/faq/)
Remote IP 54.196.208.6
Host Name 54.196.208.6


Execution Time

Total Time Avg Time Count Template
257 ms 257 ms 1 C:/home/dev.aspb.org/www.aspb.org/publications/biotext/intros/ch14.cfm
227 ms 227 ms 1 C:/home/dev.aspb.org/www.aspb.org/includes/header.cfm
92 ms 92 ms 1 C:/home/dev.aspb.org/www.aspb.org/Application.cfm
0 ms 0 ms 1 C:/home/dev.aspb.org/www.aspb.org/includes/aspbtop2.cfm
0 ms 0 ms 1 C:/home/dev.aspb.org/www.aspb.org/includes/footer.cfm
4 ms  STARTUP, PARSING, COMPILING, LOADING, & SHUTDOWN
353 ms  TOTAL EXECUTION TIME
red = over 250 ms average execution time


SQL Queries

GetGlobalSettings (Datasource=ASPBAwards, Time=17ms, Records=1) in C:\home\dev.aspb.org\www.aspb.org\Application.cfm @ 04:48:24.024
	SELECT
       [MeetingLocation]
      ,[MeetingURL]
      ,[MeetingDates]
  FROM [dbo].[GlobalSettings]


Scope Variables

Application Variables:
applicationname=aspb_web
awardsadminemail=slee@aspb.org
awardsadminfax=
awardsadminname=Sylvia Lee
awardsadminphone=301-251-0560 x114
awardsadmintitle=Executive and Governance Affairs Administrator
awardsappyear=2016
awardsdeadline=02/15/2016
awardsenddate=Monday, February 15, 2016 (11:59 p.m. ET)
awardsnextyear=2017
awardsnotifydate=March 21, 2016
awardsstartdate=Monday, January 04, 2016
awardstitle=Call for 2016 Nominations for ASPB Awards
awardsyear=2016
bloomeadminemail=katie@aspb.org
bloomeadminfax=301-251-0560
bloomeadminname=Katie Engen
bloomeadminphone=301-251-0560
bloomeadmintitle=ASPB Education Coordinator
bloomedeadline=04/15/2015
bloomeenddate=Wednesday, April 15, 2015 (11:59 p.m. ET)
bloomenextyear=
bloomenotifydate=_ 
bloomestartdate=Tuesday, February 03, 2015
bloometitle=Plant BLOOME 2015
bloomeyear=2015
excomadminemail=slee@aspb.org
excomadminfax=301-251-0560
excomadminname=Sylvia Lee
excomadminphone=301-251-0560 x114
excomadmintitle=Executive and Governance Affairs Administrator
excomballotdeadline=05/29/2015
excomballotenddate=Friday, May 29, 2015 (11:59 p.m. ET)
excomballotnotifydate=06/10/2015
excomballotstartdate=Thursday, April 23, 2015
excomballottitle=ASPB Official 2015 Election Ballot
excomlastyear=2014
excommode=Nominate
excomnextyear=2016
excomnominatedeadline=02/16/2015
excomnominateenddate=Monday, February 16, 2015 (11:59 p.m. ET)
excomnominatenotifydate=mid-March, 2015
excomnominatestartdate=Friday, December 12, 2014
excomnominatetitle=ASPB Call for Executive Committee Nominations 2015
excomyear=2015
highwireadminemail=lpalmer@aspb.org
highwireadminname=Linda Palmer
hosthead=dev.aspb.org
journalaccessadminemail=katie@aspb.org
journalaccessadminfax=301-296-0902
journalaccessadminname=Katie Engen
journalaccessadminphone=301-296-0902
journalaccessadmintitle=ASPB Education Coordinator
journalaccessdeadline=02/13/2013
journalaccessenddate=Tuesday, February 12, 2013 (11:59 p.m. ET)
journalaccessnextyear=2014
journalaccessnotifydate=late-April, 2013
journalaccessstartdate=Thursday, September 27, 2012
journalaccesstitle=ASPB Journals - Online Access Nomination Form
journalaccessyear=2014
meetingdates=July 9-13, 2016
meetinglocation=Austin, Texas
meetingurl=http://my.aspb.org/?page=ME_Index
mepadminemail=katie@aspb.org
mepadminfax=301-296-0902
mepadminname=Katie Engen
mepadminphone=301-296-0903
mepadmintitle=ASPB Education Coordinator
mepdeadline=10/31/2014
mependdate=Friday, October 31, 2014 (11:59 p.m. ET)
mepnextyear=2015
mepnotifydate=November 21, 2014
mepstartdate=Monday, August 18, 2014
meptitle=ASPB Master Educator Program (MEP)
mepyear=2014
newshead=newsletter.aspb.org
pgcb=
physloc=c:\home\dev.aspb.org\wwwroot
rtaadminemail=slee@aspb.org
rtaadminfax=301-279-2996
rtaadminname=Sylvia Lee
rtaadminphone=301-251-0560 x114
rtaadmintitle=Executive and Governance Affairs Administrator
rtadeadline=03/04/2016
rtaenddate=Friday, March 04, 2016 (11:59 p.m. ET)
rtanextyear=
rtanotifydate=mid-April, 2016
rtastartdate=Monday, October 26, 2015
rtatitle=ASPB Minority Affairs Committee 2015 Recognition Travel Award Applications
rtayear=2016
showrightrail=true
surfadminemail=katie@aspb.org
surfadminfax=301-279-2996
surfadminname=Katie Engen
surfadminphone=301-251-0560 x114
surfadmintitle=ASPB Education Coordinator
surfdeadline=02/11/2015
surfenddate=Wednesday, February 11, 2015 (11:59 p.m. ET)
surfnextyear=2016
surfnotifydate=mid-April, 2015
surfstartdate=Tuesday, December 01, 2015
surftitle=2015 Summer Undergraduate Research Fellowship Awards
surfyear=2015
travelgrantsabstractdate=February 16, 2015
travelgrantsabstractfee=$25
travelgrantsadminemail=slee@aspb.org
travelgrantsadminname=Sylvia Lee
travelgrantsadminphone=301-251-0560 x114
travelgrantsadmintitle=Executive and Governance Affairs Administrator
travelgrantsdeadline=01/12/2015
travelgrantsenddate=Monday, January 12, 2015 (11:59 p.m. EDT)
travelgrantsfeewaived=$200
travelgrantsgrantamount=$575
travelgrantsgranttotal=
travelgrantsnextyear=2016
travelgrantsnotifydate=Tuesday, February 10, 2015
travelgrantsstartdate=Monday, November 03, 2014
travelgrantstitle=ASPB 2015 Travel Grants Award Application
travelgrantstotalamount=$46,000
travelgrantswaived=
travelgrantsyear=2015
wyitaabstractfee=$50
wyitaadminemail=slee@aspb.org
wyitaadminname=Sylvia Lee
wyitaadminphone=301-251-0560 x114
wyitaadmintitle=Executive and Governance Affairs Administrator
wyitaappyear=2015
wyitadeadline=01/13/2015
wyitaenddate=Tuesday, January 13, 2015 (11:59 p.m. ET)
wyitafeewaived=$165
wyitagrantamount=$1000
wyitagranttotal=$7000
wyitanextyear=2016
wyitanotifydate=February 10, 2015
wyitastartdate=Monday, November 03, 2014
wyitatitle=ASPB 2015 Women's Young Investigator Travel Award Applications
wyitawaived=
wyitayear=2015
ymhosthead=my.aspb.org
CGI Variables:
AUTH_PASSWORD=
AUTH_TYPE=
AUTH_USER=
CERT_COOKIE=
CERT_FLAGS=
CERT_ISSUER=
CERT_KEYSIZE=
CERT_SECRETKEYSIZE=
CERT_SERIALNUMBER=
CERT_SERVER_ISSUER=
CERT_SERVER_SUBJECT=
CERT_SUBJECT=
CF_TEMPLATE_PATH=C:\home\dev.aspb.org\www.aspb.org\publications\biotext\intros\ch14.cfm
CONTENT_LENGTH=
CONTENT_TYPE=
CONTEXT_PATH=
GATEWAY_INTERFACE=CGI/1.1
HTTPS=off
HTTPS_KEYSIZE=
HTTPS_SECRETKEYSIZE=
HTTPS_SERVER_ISSUER=
HTTPS_SERVER_SUBJECT=
HTTP_ACCEPT=text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
HTTP_ACCEPT_ENCODING=x-gzip, gzip, deflate
HTTP_ACCEPT_LANGUAGE=en-us,en-gb,en;q=0.7,*;q=0.3
HTTP_CONNECTION=
HTTP_COOKIE=
HTTP_HOST=www.aspb.org
HTTP_REFERER=
HTTP_USER_AGENT=CCBot/2.0 (http://commoncrawl.org/faq/)
PATH_INFO=/publications/biotext/intros/ch14.cfm
PATH_TRANSLATED=C:\home\dev.aspb.org\www.aspb.org\publications\biotext\intros\ch14.cfm
QUERY_STRING=
REMOTE_ADDR=54.196.208.6
REMOTE_HOST=54.196.208.6
REMOTE_USER=
REQUEST_METHOD=GET
SCRIPT_NAME=/publications/biotext/intros/ch14.cfm
SERVER_NAME=www.aspb.org
SERVER_PORT=80
SERVER_PORT_SECURE=0
SERVER_PROTOCOL=HTTP/1.0
SERVER_SOFTWARE=Microsoft-IIS/7.5
WEB_SERVER_API=
Client Variables:
cfid=1868889
cftoken=b0ef29d6254e1207-B643336E-E344-81BF-8AA609721F9CBD32
hitcount=1
lastvisit={ts '2016-02-09 04:48:24'}
timecreated={ts '2016-02-09 04:48:24'}
urltoken=CFID=1868889&CFTOKEN=b0ef29d6254e1207-B643336E-E344-81BF-8AA609721F9CBD32
Cookie Variables:
CFID=1868889
CFTOKEN=b0ef29d6254e1207-B643336E-E344-81BF-8AA609721F9CBD32
Server Variables:
coldfusion=Struct (8)
os=Struct (5)
Session Variables:
address1=
address2=
cfid=1868889
cftoken=b0ef29d6254e1207-B643336E-E344-81BF-8AA609721F9CBD32
city=
constituentid=
cookie=
country=
email=
fax=
firstname=
gender=
id=
institution=
lastname=
memberemail=
memberid=
membername=
membership=
membertype=
middlename=
pgcb=ok
phone=
prefix=
sessionid=ASPB_WEB_1868889_b0ef29d6254e1207-B643336E-E344-81BF-8AA609721F9CBD32
state=
suffix=
title=
urltoken=CFID=1868889&CFTOKEN=b0ef29d6254e1207-B643336E-E344-81BF-8AA609721F9CBD32
websiteid=
ymsessionid=
zip=
URL Parameters:
COOKIE=
Debug Rendering Time: 52 ms