Abnormalities in the male developmental programme of winter wheat induced by climatic stress at meiosis

Demotes-Mainard, Sabine; Doussinault, Gérard; Meynard, JM

doi:10.1051/agro:19960804

Cited by 15 publications

(16 citation statements)

References 14 publications

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“…Tolerance of female gametophyte development to chilling has been reported in wheat (Imrie ; Demotes‐Mainard et al . ). Among the Australian varieties tested here, Vulcan was the least affected in the prolonged treatment.…”

Section: Discussionmentioning

confidence: 97%

“…All varieties were sensitive to prolonged chilling at 11/6 °C, and failure of male gametophyte development was clearly demonstrated by misshapen pollen grains devoid of cellular content and lack of dehiscence, as noted previously (Brooking ; Demotes‐Mainard et al . ; Dorion et al . ).…”

Section: Discussionmentioning

confidence: 99%

“…), low solar radiation (Fischer & Stockman ; Demotes‐Mainard et al . ) and mineral deficiencies (Dell ; Huang et al . ), and that these factors result in significant losses in yield.…”

Section: Introductionmentioning

confidence: 99%

“…For rice there is a substantial body of work on the effects of chilling during flowering following several successive nights below 17°C and the associated yield-loss mechanisms have been well characterized at the cellular, physiological and molecular levels (Satake 1976;Oliver et al 2005). In the case of chilling and wheat, significant reductions in yield resulting from temperatures just above freezing have been reported (Qian et al 1986;Demotes-Mainard et al 1996;Subedi et al 1996Subedi et al , 1998aSubedi et al ,b, 2000Subedi et al , 2001. However, there are no reports concerning the mechanisms leading to these yield reductions in wheat, and there are no studies available on the susceptibility of yield in Australian wheat cultivars to chilling conditions.…”

Section: Introductionmentioning

confidence: 99%

“…However, there are no reports concerning the mechanisms leading to these yield reductions in wheat, and there are no studies available on the susceptibility of yield in Australian wheat cultivars to chilling conditions. In addition to cold temperatures, it has been established that reproductive development is impacted by heat (Saini et al 1984;Gibson & Mullen 1996;Sato et al 2006), water stress (Saini et al 1984;Dorion et al 1996;Nguyen & Sutton 2009;Ji et al 2010), low solar radiation (Fischer & Stockman 1980;Demotes-Mainard et al 1996) and mineral deficiencies (Dell 1981;Huang et al 2000), and that these factors result in significant losses in yield. The physiological and molecular mechanisms behind these crop losses seem to be common to many types of abiotic stress, with pollen development being particularly sensitive to adverse conditions.…”

Section: Introductionmentioning

confidence: 99%

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Chilling to zero degrees disrupts pollen formation but not meiotic microtubule arrays in Triticum aestivum L.

Barton

Cantrill

Law

et al. 2014

Plant Cell & Environment

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Throughout the wheat-growing regions of Australia, chilling temperatures below 2 °C occur periodically on consecutive nights during the period of floral development in spring wheat (Triticum aestivum L.). In this study, wheat plants showed significant reductions in fertility when exposed to prolonged chilling temperatures in controlled environment experiments. Among the cultivars tested, the Australian cultivars Kite and Hartog had among the lowest levels of seed set due to chilling and their responses were investigated further. The developmental stage at exposure, the chilling temperature and length of exposure all influenced the level of sterility. The early period of booting, and specifically the +4 cm auricle distance class, was the most sensitive and corresponded to meiosis within the anthers. The response of microtubules to chilling during meiosis in Hartog was monitored, but there was little difference between chilled and control plants. Other abnormalities, such as plasmolysis and cytomixis increased in frequency, were associated with death of developing pollen cells, and could contribute to loss of fertility. The potential for an above-zero chilling sensitivity in Australian spring wheat varieties could have implications for exploring the tolerance of wheat flower development to chilling and freezing conditions in the field.

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Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

“…), low solar radiation (Fischer & Stockman ; Demotes‐Mainard et al . ) and mineral deficiencies (Dell ; Huang et al . ), and that these factors result in significant losses in yield.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Chilling to zero degrees disrupts pollen formation but not meiotic microtubule arrays in Triticum aestivum L.

Barton

Cantrill

Law

et al. 2014

Plant Cell & Environment

View full text Add to dashboard Cite

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The Physiology of Reproductive-Stage Abiotic Stress Tolerance in Cereals

Powell

Ravash

et al. 2013

Molecular Stress Physiology of Plants

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Estimating the outcrossing rate of barley landraces and wild barley populations collected from ecologically different regions of Jordan

et al. 2004

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The results of previous studies conducted at the University of Hohenheim and the International Center for Agricultural Research in the Dry Areas (ICARDA) indicated that the yielding ability and stability of barley (Hordeum vulgare L.) could be improved in environments with drought stress by increasing the level of heterozygosity. This would require increasing the outbreeding rate of locally adapted breeding materials. As a first step, we estimated the outcrossing rate of 12 barley landraces (Hordeum vulgare ssp. vulgare, in short H. vulgare) and 13 sympatrically occurring populations of its wild progenitor [Hordeum vulgare ssp. spontaneum (C. Koch), in short H. spontaneum] collected from semi-arid localities in Jordan during the 1999/2000 growing season. In each H. vulgare or H. spontaneum population 28-48 spikes were sampled, and up to six offspring (seeds) per spike (called a family) were used for PCR analyses. Collection sites covered high-low transects for rainfall and altitude in order to detect possible environmental effects on the outcrossing rate. Four microsatellite markers located on different chromosomes were used to genotype the samples for estimating the outcrossing rate. Low season-specific multilocus outcrossing rates (tm) were found in both cultivated and wild barley, ranging among populations from 0-1.8% with a mean of 0.34%. Outcrossing rates based on inbreeding equilibrium (te), indicating outcrossing averaged across years, were two- to threefold higher than the season-specific estimates. Under high rainfall conditions somewhat higher--though not significantly higher--outcrossing rates were observed in H. spontaneum than in H. vulgare. The season-specific outcrossing rate in H. spontaneum was positively correlated (r = 0.67, P = 0.01) with average annual precipitation and negatively correlated (r = 0.59, P = 0.05) with monthly average temperature during flowering. The results suggest that outcrossing may vary considerably among seasons and that high precipitation and cool temperatures during flowering tend to enhance outcrossing. The rather low levels of outcrossing detected indicate that increased vigour due to heterozygosity has not been a major fitness advantage in the evolution and domestication of H. spontaneum and H. vulgare, respectively. Stable seed production to secure survival under extreme heat and drought stress may have been more important. Cleistogamy may be considered as an effective mechanism to warrant pollination even in drought-stunted plants with non-extruding spikes.

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Abnormalities in the male developmental programme of winter wheat induced by climatic stress at meiosis

Cited by 15 publications

References 14 publications

Chilling to zero degrees disrupts pollen formation but not meiotic microtubule arrays in Triticum aestivum L.

Chilling to zero degrees disrupts pollen formation but not meiotic microtubule arrays in Triticum aestivum L.

The Physiology of Reproductive-Stage Abiotic Stress Tolerance in Cereals

Estimating the outcrossing rate of barley landraces and wild barley populations collected from ecologically different regions of Jordan

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