Influence of soil O2 and CO2 on root respiration for Agave deserti (Record no. 51212)

MARC details
000 -LEADER
fixed length control field 02130nam a2200241Ia 4500
003 - CONTROL NUMBER IDENTIFIER
control field MX-MdCICY
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20250625160203.0
040 ## - CATALOGING SOURCE
Transcribing agency CICY
090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN)
Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-17049
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 250602s9999 xx |||||s2 |||| ||und|d
245 10 - TITLE STATEMENT
Title Influence of soil O2 and CO2 on root respiration for Agave deserti
490 0# - SERIES STATEMENT
Volume/sequential designation Physiologia Plantarum, 76(2), p.187-192, 1989
520 3# - SUMMARY, ETC.
Summary, etc. Respiration measured as CO2 efflux was determined at various soil O2 and CO2concentrations for individual, attached roots of a succulent perennial from the Sonoran Desert, Agave deserti Engelm. The respiration rate increased with increasing O2concentration up to about 16 percent O2 for established roots and 5 percent O2 for rain roots (fine branch roots on established roots induced by wetting of the soil)and then remained fairly constant up to 21 percent O2. When O2 was decreased from 21 to 0 percent, the respiration rates were similar to those obtained with increasing O2 concentration. The CO2concentration in the root zone, which for the shallow?rooted A. deserti in the field was about 1 000 ?l l?1, did not affect root respiration at concentrations up to 2 000 ?l l?1, but higher concentrations reduced it, respiration being abolished at 20 000 ?l l?1 (2 percent)CO2 for both established and rain roots. Upon lowering CO2 to 1 000 ?l l?1 after exposure to concentrations up to 10000 ?l l?1 CO2, inhibition of respiration was reversible. Uptake of the vital stain neutral red by root cortical cells was reduced to zero, indicating cell death, in about 4 h at 2 percent CO2, substantiating the detrimental effects of high soil CO2concentrations on roots of A. deserti. This CO2 response may explain why roots of desert succulents tend to occur in porous, well?aerated soils.
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element AGAVE DESERTI
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element GAS EXCHANGE
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element RESPIRATION
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element ROOT
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element SOIL
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Palta, J. A.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Nobel, P. S.
856 40 - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="https://drive.google.com/file/d/1q__vv-En8LRxQaWYR0dXxJywkXqelRNm/view?usp=drivesdk">https://drive.google.com/file/d/1q__vv-En8LRxQaWYR0dXxJywkXqelRNm/view?usp=drivesdk</a>
Public note Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Source of classification or shelving scheme Clasificación local
Koha item type Documentos solicitados
Holdings
Lost status Source of classification or shelving scheme Damaged status Not for loan Collection Home library Current library Shelving location Date acquired Total checkouts Full call number Date last seen Price effective from Koha item type
  Clasificación local     Ref1 CICY CICY Documento préstamo interbibliotecario 25.06.2025   B-17049 25.06.2025 25.06.2025 Documentos solicitados