Freezing injury to ovules, pollen and seeds in winter rape

Larden, A.; Triboï‐Blondel, Anne‐Marie

doi:10.1093/jxb/45.8.1177

Cited by 27 publications

(26 citation statements)

References 15 publications

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“…Canola is cultivated both during winter and spring seasons in United States that expose the crop to winter kill and frost and high temperatures, respectively, during the reproductive period. The temperatures during winter and spring are known to influence all the crucial steps of the reproductive cycle including gametogenesis, pollination, fertilization and embryogenesis (Lardon and Triboi‐Blondel 1994, Angadi et al. 2000).…”

Section: Introductionmentioning

confidence: 99%

“…JinLing (1997) observed that low temperatures result in fewer mature seeds in canola because of the reduced fertilization potential of pollen grains. This could be due to the sensitivity of the binucleate stage of pollen grains to short periods of freezing temperature (−3 °C for 4 h; Lardon and Triboi‐Blondel 1994). Similarly, high temperatures inhibit reproductive success.…”

Section: Introductionmentioning

confidence: 99%

“…2007). In canola, pollen grain viability is vital in the selection for both low‐temperature (Lardon and Triboi‐Blondel 1994, Lyakh et al. 1998) and high‐temperature (Angadi et al.…”

Section: Introductionmentioning

confidence: 99%

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Assessment of Cold and Heat Tolerance of Winter‐grown Canola (Brassica napus L.) Cultivars by Pollen‐based Parameters

Singh

Kakani

Brand

et al. 2008

J Agronomy Crop Science

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Winter‐grown canola (Brassica napus L.) production is limited mostly by frost and winter kill in the southern canola‐growing regions of the United States. Tolerance to cold and heat were assessed by studying percentage of pollen viability (PV), in vitro pollen germination (PG) and pollen tube length (PTL) for 12 field‐grown cultivars. Freshly collected pollen from all cultivars were incubated on artificial solid growth media at a constant temperature ranging from 10 to 35 °C at 5 °C interval for 30 h to determine PG and PTL. A modified bilinear model best described the temperature response functions of PG and PTL. Canola cultivars showed significant variability (P < 0.001) for PV (61.3 % to 89.7 %), PG (29.0 % to 48.2 %) and PTL (463 to 931 μm). The average cardinal temperatures, Tmin, Topt and Tmax, for PG and PTL were 6.4, 24.3 and 33.7 °C, respectively. Principal component analysis revealed that maximum PG, PTL, Tmin and Topt of both PG and PTL were the most important factors in determining cold tolerance, whereas Tmax of PG and PTL, and maximum PG and PTL were more responsible in separating the cultivars for heat tolerance. The canola cultivar, KS3077, was the most cold tolerant with the lowest Tmin and the widest temperature adaptability range, and the cultivar Kadore was the most heat tolerant with the highest Tmax for the PG. The identified cold‐ and heat‐tolerant cultivars may be useful in canola‐breeding programmes to develop cultivars suitable for a niche environment.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Assessment of Cold and Heat Tolerance of Winter‐grown Canola (Brassica napus L.) Cultivars by Pollen‐based Parameters

Singh

Kakani

Brand

et al. 2008

J Agronomy Crop Science

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“…Temperature influences plant growth, and B uptake and B requirements (Forno et al 1979, Ye et al 2000). Furthermore, chilling temperatures may cause physical damage to vegetative and reproductive tissues that are actively growing (Lardon and Triboi‐Blondel 1994), and therefore increase the severity of B deficiency (Forno et al 1979, Ye et al 2000). Field‐grown winter oilseed rape ( Brassica napus L) experience a wide range of root and air temperatures, both diurnally (in autumn and spring) and across the growing seasons (such as in winter and early spring).…”

Section: Introductionmentioning

confidence: 99%

Low root zone temperature favours shoot B partitioning into young leaves of oilseed rape (Brassica napus)

Huang

Bell

et al. 2003

Physiologia Plantarum

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In previous studies with tropical plant species, low root zone temperature (RZT) induced boron (B) deficiency, but it is not known if the same response to RZT will be expressed in temperate species, like oilseed rape, that are more tolerant of low temperature. The present experiments investigated the effect of RZT (10 and 20°C) on oilseed rape (Brassica napus L. cv. Hyola 42) response to B in solution culture, in summer and winter. Regardless of canopy growth conditions, low RZT (10°C) promoted the partitioning of shoot B to the actively growing leaves, especially when B supply was low. However, low RZT did not significantly alter net B uptake rates or plant biomass. Low RZT decreased the shoot‐to‐root ratio, countering the effects of low B which increased it, leading to a decreased demand for B in the shoot at low RZT. At low B supply, B‐deficiency symptoms appeared later at 10 than at 20°C, corresponding with higher B concentrations in the youngest fully opened leaves (YOLs) at 10°C RZT. Thus 10°C RZT increased the tolerance to low B supply. As a result, it is concluded that the effect of decreasing RZT on the responses of the temperate species, oilseed rape, to low B supply depends on whether the low RZT is above or below the optimal root temperature for growth.

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“…Salter and Goode 1967). Among these stages, reproductive development from meiosis in the spore mother cells to fertilization and early seed establishment is extremely sensitive to various stresses, such as drought (Salter and Goode 1967;O'Toole and Moya 1981;Saini and Aspinall 1981;Westgate and Boyer 1986), heat (Satake and Yoshida 1978;Saini and Aspinall 1982a;Schoper et al 1987;Morrison 1993), cold (Hayase et al 1969;Brooking 1976;Lardon and Triboi-Blondel 1994), flooding (Matsushima 1962;Reddy and Mittra 1985) and nutrient deficiencies (Zavadskaya and Skazkin 1960;Graham 1975;Campbell and Leyshon 1980;Sharma et al 1987;Azouaou and Souvré 1993). These stresses cause various structural and functional abnormalities in reproductive organs, leading to failure of fertilization or premature abortion of seed or fruit.…”

Section: Introductionmentioning

confidence: 99%

Effects of water stress on male gametophyte development in plants

Saini

1997

Sexual Plant Reproduction

212

150

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Male reproductive development in plants is highly sensitive to water deficit during meiosis in the microspore mother cells. Water deficit during this stage inhibits further development of microspores or pollen grains, causing male sterility. Female fertility, in contrast, is quite immune to stress. The injury is apparently not caused by desiccation of the reproductive tissue, but is an indirect consequence of water deficit in the vegetative organs, such as leaves. The mechanism underlying this stress response probably involves a long-distance signaling molecule, originating in the organs that undergo water loss, and affecting fertility in the reproductive tissue, which conserves its water status. Much research has been focused on the involvement of abscisic acid in this regard, but the most recent evidence tends to reject a role for this hormone in the induction of male sterility. Stress-induced arrest of male gametophyte development is preceded by disturbances in carbohydrate metabolism and distribution within anthers, and an inhibition of the key sugar-cleaving enzyme, acid invertase. Since invertase gene expression can be modulated by sugar concentration, it is possible that decreased sugar delivery to reproductive tissue upon inhibition of photosynthesis by stress is the signal that triggers metabolic lesions leading to failure of male gametophyte development.

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Freezing injury to ovules, pollen and seeds in winter rape

Cited by 27 publications

References 15 publications

Assessment of Cold and Heat Tolerance of Winter‐grown Canola (Brassica napus L.) Cultivars by Pollen‐based Parameters

Assessment of Cold and Heat Tolerance of Winter‐grown Canola (Brassica napus L.) Cultivars by Pollen‐based Parameters

Low root zone temperature favours shoot B partitioning into young leaves of oilseed rape (Brassica napus)

Effects of water stress on male gametophyte development in plants

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