Response of two pea hybrids to CO2 enrichment: a test of the energy overflow hypothesis for alternative respiration.
Response of two pea hybrids to CO2 enrichment: a test of the energy overflow hypothesis for alternative respiration.
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两种豌豆杂交品种对二氧化碳富集的响应:替代呼吸能量溢出假说的检验。
DOI:
10.1073/pnas.83.21.8157
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发表时间:
1986
影响因子:
11.1
通讯作者:
Siedow,JN
中科院分区:
文献类型:
--
作者:
Musgrave,ME;Strain,BR;Siedow,JN
Two pea (Pisum sativum L.) hybrids differing in the presence or absence of the cyanide-resistant (alternative) pathway of respiration were constructed by reciprocally crossing cv. Alaska and cv. Progress No. 9. The F1 hybrids were grown in greenhouses maintained at either 350 or 650 ppm CO2, and the growth, flowering, and dry matter accumulation were compared. The objective was to assess the significance of the alternative respiratory pathway to whole-plant carbon budgets and further to test the hypothesis that the alternative pathway is important in oxidizing excess carbohydrates such as might accumulate under conditions of CO2 enrichment. More carbohydrates were available in the F1 hybrid lacking the pathway, as evidenced by greater plant height, leaf area, specific leaf weight, and total dry matter compared with the reciprocal hybrid, especially at 650 ppm CO2. Specific leaf weight increased markedly under CO2 enrichment in the hybrid lacking the pathway, while it was the same at 350 and 650 ppm in the reciprocal cross. The hybrid lacking the alternative pathway also outperformed the reciprocal cross in terms of total dry matter and seed production. Increased branching with CO2 enrichment was observed in the hybrid lacking the pathway, while branching in the reciprocal cross was only slightly stimulated. These results suggest that alternative respiration consumes luxury carbohydrate and that respiration via this pathway may be considered energetically wasteful in terms of whole-plant carbon budgets.
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DOI:
10.1152/ajpheart.1979.237.3.h311
发表时间:
1979
期刊:
The American journal of physiology
影响因子:
--
作者:
L. Michael;R. Lewis;T. Brandon;M. Entman
通讯作者:
M. Entman
影响因子:
2.8
作者:
D. Mason
通讯作者:
D. Mason
DOI:
--
发表时间:
1976
期刊:
Recent advances in studies on cardiac structure and metabolism
影响因子:
--
作者:
J. Willerson;F. E. Scales;A. Mukherjee;M. Platt;G. Templeton;G. Fink;L. Buja
通讯作者:
L. Buja
DOI:
10.1152/ajplegacy.1973.224.4.918
发表时间:
1973
期刊:
The American journal of physiology
影响因子:
--
作者:
S. Scharf;B. Bromberger
通讯作者:
B. Bromberger
DOI:
10.1152/ajpheart.1984.247.1.h1
发表时间:
1984
期刊:
The American journal of physiology
影响因子:
--
作者:
C. F. Pilati;M. B. Maron
通讯作者:
M. B. Maron