Influence of Night Temperature on Growth and Development of Cotton (Gossypium hirsutum L.). III. Fiber Elongation¹

Abstract

Four different night temperature regimes were maintained on two varieties of field‐grown cotton Gossypium hirsutum L., during the 1964 and 1965 seasons. Elongation of fiber was found to be closely associated with both temperature and variety. As night temperature was lowered, fiber elongation rates decreased and fiber elongation periods increased for both varieties. Rate of elongation was not uniform over the entire elongation period, but was dependent upon fiber age and night temperature. Temperature coefficients of elongation decreased with increased fiber age and night temperature. Thus, the initial stages of fiber elongation were highly temperature dependent, while the latter stages tended to become temperature independent.

Protein expression changes during cotton fiber elongation in response to low temperature stress

“…1). The range of the changes in fiber length at different developmental stages (10, 15, and 20 DPA) indicates that early fiber elongation (before 15 DPA) is significantly retarded under low temperature stress, which is consistent with the previous observations (Gipson and Joham, 1969).…”

“…Cool average temperatures and low night temperatures (below 22.0 • C) encumber fiber elongation by decreasing the axial growth Abbreviations: BR, benzoquinone reductase; DPA, days post-anthesis; 2-DE, twodimensional electrophoresis; EXGT, endo-xyloglucan transferase; MALDI-TOF MS, matrix-assisted laser desorption/ionization time of flight mass spectrometry; MDT, mean daily temperature; MDTmax, mean daily maximum temperature; MDTdif, mean diurnal temperature difference; MDTmin, mean daily minimum temperature; PEPCase, phosphoenolpyruvate carboxylase; SDS-PAGE, sodium dodecylsulfate polyacrylamide gel electrophoresis; SOD, superoxide dismutases. rate of fibers within the early stage of elongation (before 15 DPA) (Gipson and Joham, 1969;Xie et al, 1993). Moreover, fiber qualities were significantly decreased under low temperature stress (Haigler et al, 1991;Liakatas et al, 1998).…”

Variability of Cotton Yield and Quality

“…Fiber length is primarily determined by variety but is also influenced by temperature, water, and nutrient stresses (13). Furthermore, fiber length is affected by daytime and nighttime temperature (32,33).…”

Cultured Ovules as Models for Cotton Fiber Development under Low Temperatures

“…Its development is characterized by two overlapping phases, primary wall synthesis to accomplish fiber elongation and secondary wall synthesis to accomplish fiber thickening (25). It has been known for decades that field-grown fibers exposed to cool temperatures (generally at night) have prolonged periods and reduced overall rates of elongation and thickening (9,10,14,28) and "growth rings" in their secondary walls (2,18 vidual fibers (1 1). However, little research has been directed toward determining the mechanism of this response despite its adverse economic consequences (8) and fundamental importance to understanding the regulation of cell wall deposition.…”