Annals of Botany 90: 631-636, 2002
© 2002 Annals of Botany Company
The Effect of Heat Stress on Tomato Pollen Characteristics is Associated with Changes in Carbohydrate Concentration in the Developing Anthers
1 Department of Vegetable Crops, ARO, The Volcani Center, Bet Dagan, Israel and 2 Department of Horticultural Science, NCSU, Raleigh, North Carolina, USA
* For correspondence. Fax 972 3 9669642, e-mail pressman{at}agri.gov.il
Received: 25 June 2002; Returned for revision: 30 July 2002; Accepted: 8 August 2002
Continuous exposure of tomato ‘Trust’ to high temperatures (day/night temperatures of 32/26 °C) markedly reduced the number of pollen grains per flower and decreased viability. The effect of heat stress on pollen viability was associated with alterations in carbohydrate metabolism in various parts of the anther during its development. Under control, favourable temperature conditions (28/22 °C), starch accumulated in the pollen grains, where it reached a maximum value 3 d before anthesis; it then diminished towards anthesis. During anther development, the concentration of total soluble sugars gradually increased in the anther walls and in the pollen grains (but not in the locular fluid), reaching a maximum at anthesis. Continuous exposure of the plants to high temperatures (32/26 °C) prevented the transient increase in starch concentration and led to decreases in the concentrations of soluble sugars in the anther walls and the pollen grains. In the locular fluid, however, a higher soluble sugar concentration was detected under the high-temperature regime throughout anther development. These results suggest that a major effect of heat stress on pollen development is a decrease in starch concentration 3 d before anthesis, which results in a decreased sugar concentration in the mature pollen grains. These events possibly contribute to the decreased pollen viability in tomato.
Key words: Anther development, carbohydrate, heat stress, pollen, starch, temperature stress.
CiteULike 
Connotea 
Del.icio.us What's this?
This article has been cited by other articles:
|
|
 |
|
  F. Giorno, M. Wolters-Arts, S. Grillo, K.-D. Scharf, W. H. Vriezen, and C. Mariani Developmental and heat stress-regulated expression of HsfA2 and small heat shock proteins in tomato anthers J. Exp. Bot., October 23, 2009; (2009) erp316v1. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
G. Frank, E. Pressman, R. Ophir, L. Althan, R. Shaked, M. Freedman, S. Shen, and N. Firon Transcriptional profiling of maturing tomato (Solanum lycopersicum L.) microspores reveals the involvement of heat shock proteins, ROS scavengers, hormones, and sugars in the heat stress response J. Exp. Bot., September 1, 2009; 60(13): 3891 - 3908. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 T. Hewezi, M. Leger, and L. Gentzbittel A Comprehensive Analysis of the Combined Effects of High Light and High Temperature Stresses on Gene Expression in Sunflower Ann. Bot., July 1, 2008; 102(1): 127 - 140. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. SATO, M. KAMIYAMA, T. IWATA, N. MAKITA, H. FURUKAWA, and H. IKEDA Moderate Increase of Mean Daily Temperature Adversely Affects Fruit Set of Lycopersicon esculentum by Disrupting Specific Physiological Processes in Male Reproductive Development Ann. Bot., May 1, 2006; 97(5): 731 - 738. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
V. G. KAKANI, K. R. REDDY, S. KOTI, T. P. WALLACE, P. V. V. PRASAD, V. R. REDDY, and D. ZHAO Differences in in vitro Pollen Germination and Pollen Tube Growth of Cotton Cultivars in Response to High Temperature Ann. Bot., July 1, 2005; 96(1): 59 - 67. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 M. Bots, F. Vergeldt, M. Wolters-Arts, K. Weterings, H. van As, and C. Mariani Aquaporins of the PIP2 Class Are Required for Efficient Anther Dehiscence in Tobacco Plant Physiology, March 1, 2005; 137(3): 1049 - 1056. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. Bots, R. Feron, N. Uehlein, K. Weterings, R. Kaldenhoff, and T. Mariani PIP1 and PIP2 aquaporins are differentially expressed during tobacco anther and stigma development J. Exp. Bot., January 1, 2005; 56(409): 113 - 121. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 A. Majewska-Sawka, A. Munster, and E. Wisniewska Temporal and Spatial Distribution of Pectin Epitopes in Differentiating Anthers and Microspores of Fertile and Sterile Sugar Beet Plant Cell Physiol., May 15, 2004; 45(5): 560 - 572. [Abstract] [Full Text] [PDF]
|
|