|
PLANT PHYSIOLOGY , Vol 107, Issue 2 385-391, Copyright © 1995 by American Society of Plant Biologists
|
WHOLE PLANT, ENVIRONMENTAL, AND STRESS PHYSIOLOGY |
Low Water Potential Disrupts Carbohydrate Metabolism in Maize (Zea mays L.) Ovaries
C. Zinselmeier, M. E. Westgate, J. R. Schussler and R. J. Jones
University of Minnesota, St. Paul, Minnesota (C.Z.,R.J.J.)
Water deficit during pollination increases the frequency of kernel abortion
in maize (Zea mays L.). Much of the kernel loss is attributable to lack of
current photosynthate, but a large number of kernels fail to develop on
water-deficient plants even when assimilate supply is increased. We
examined the possibility that assimilate utilization by developing ovaries
might be impaired at low water potential ([Psi]w). Plants were grown in the
greenhouse in 20-L pots containing 22 kg of amended soil. Water was
withheld on the first day silks emerged, and plants were hand-pollinated 4
d later when leaf [Psi]w decreased to approximately - 1.8 MPa and silk
[Psi]w was approximately -1.0 MPa. Plants were rehydrated 2 d after
pollination. The brief water deficit inhibited ovary growth (dry matter
accumulation) and decreased kernel number per ear by 60%, compared to
controls. Inhibition of ovary growth was associated with a decrease in the
level of reducing sugars, depletion of starch, a 75-fold increase in
sucrose concentration (dry weight basis), and inhibition of acid invertase
(EC 3.2.1.26) activity. These results indicate that water deficits during
pollination disrupt carbohydrate metabolism in maize ovaries. They suggest
that acid invertase activity is important for establishing and maintaining
reproductive sink strength during pollination and early kernel development.
This article has been cited by other articles:
|
|
|
|
 
R. Tuberosa, S. Salvi, S. Giuliani, M. C. Sanguineti, M. Bellotti, S. Conti, and P. Landi
Genome-wide Approaches to Investigate and Improve Maize Response to Drought
Crop Sci.,
December 18, 2007;
47(Supplement_3):
S-120 - S-141.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
J. S. Boyer and J. E. McLaughlin
Functional reversion to identify controlling genes in multigenic responses: analysis of floral abortion
J. Exp. Bot.,
January 1, 2007;
58(2):
267 - 277.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
V. Radchuk, L. Borisjuk, R. Radchuk, H.-H. Steinbiss, H. Rolletschek, S. Broeders, and U. Wobus
Jekyll Encodes a Novel Protein Involved in the Sexual Reproduction of Barley
PLANT CELL,
July 1, 2006;
18(7):
1652 - 1666.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
P. MAKELA, J. E. McLAUGHLIN, and J. S. BOYER
Imaging and Quantifying Carbohydrate Transport to the Developing Ovaries of Maize
Ann. Bot.,
October 1, 2005;
96(5):
939 - 949.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
J. E. McLAUGHLIN and J. S. BOYER
Sugar-responsive Gene Expression, Invertase Activity, and Senescence in Aborting Maize Ovaries at Low Water Potentials
Ann. Bot.,
November 1, 2004;
94(5):
675 - 689.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
J. S. Boyer and M. E. Westgate
Grain yields with limited water
J. Exp. Bot.,
November 1, 2004;
55(407):
2385 - 2394.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
J. E. MCLAUGHLIN and J. S. BOYER
Glucose Localization in Maize Ovaries When Kernel Number Decreases at Low Water Potential and Sucrose is Fed to the Stems
Ann. Bot.,
July 1, 2004;
94(1):
75 - 86.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
J. Yang, J. Zhang, Z. Wang, G. Xu, and Q. Zhu
Activities of Key Enzymes in Sucrose-to-Starch Conversion in Wheat Grains Subjected to Water Deficit during Grain Filling
Plant Physiology,
July 1, 2004;
135(3):
1621 - 1629.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
T. Roitsch, M. E. Balibrea, M. Hofmann, R. Proels, and A. K. Sinha
Extracellular invertase: key metabolic enzyme and PR protein
J. Exp. Bot.,
January 3, 2003;
54(382):
513 - 524.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
M. N. Andersen, F. Asch, Y. Wu, C. R. Jensen, H. Nasted, V. O. Mogensen, and K. E. Koch
Soluble Invertase Expression Is an Early Target of Drought Stress during the Critical, Abortion-Sensitive Phase of Young Ovary Development in Maize
Plant Physiology,
October 1, 2002;
130(2):
591 - 604.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
F. H. Andrade, L. Echarte, R. Rizzalli, A. Della Maggiora, and M. Casanovas
Kernel Number Prediction in Maize under Nitrogen or Water Stress
Crop Sci.,
July 1, 2002;
42(4):
1173 - 1179.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
R. TUBEROSA, S. SALVI, M. C. SANGUINETI, P. LANDI, M. MACCAFERRI, and S. CONTI
Mapping QTLs Regulating Morpho-physiological Traits and Yield: Case Studies, Shortcomings and Perspectives in Drought-stressed Maize
Ann. Bot.,
June 15, 2002;
89(7):
941 - 963.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
C. Bissuel-Belaygue, A. A. Cowan, A. H. Marshall, and J. Wery
Reproductive Development of White Clover (Trifolium repens L.) is Not Impaired by a Moderate Water Deficit That Reduces Vegetative Growth: II. Fertilization Efficiency and Seed Set
Crop Sci.,
March 1, 2002;
42(2):
414 - 422.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
T. L. Setter, B. A. Flannigan, and J. Melkonian
Loss of Kernel Set Due to Water Deficit and Shade in Maize: Carbohydrate Supplies, Abscisic Acid, and Cytokinins
Crop Sci.,
September 1, 2001;
41(5):
1530 - 1540.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
J.-Y. Kim, A. Mahé, J. Brangeon, and J.-L. Prioul
A Maize Vacuolar Invertase, IVR2, Is Induced by Water Stress. Organ/Tissue Specificity and Diurnal Modulation of Expression
Plant Physiology,
September 1, 2000;
124(1):
71 - 84.
[Abstract]
[Full Text]
|
|
|
|
|
|
|
S.C. Chapman and G.O. Edmeades
Selection Improves Drought Tolerance in Tropical Maize Populations: II. Direct and Correlated Responses among Secondary Traits
Crop Sci.,
September 1, 1999;
39(5):
1315 - 1324.
[Abstract]
[Full Text]
|
|
|
|
|
|
|
C. Zinselmeier, B.-R. Jeong, and J. S. Boyer
Starch and the Control of Kernel Number in Maize at Low Water Potentials
Plant Physiology,
September 1, 1999;
121(1):
25 - 36.
[Abstract]
[Full Text]
|
|
|
|
|
