Changes in wheat seed germination ability, soluble carbohydrate and antioxidant enzyme activities in the embryo during the desiccation phase of maturation

Lehner, Arnaud; Bailly, Christophe; Flechel, B.; Poels, P.; Côme, D.; Corbineau, Françoise

doi:10.1016/j.jcs.2005.07.005

Cited by 55 publications

(37 citation statements)

References 39 publications

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“…These results are compatible with those reported for rice , wheat (Lehner et al, 2006), tomato (Demir and Samit, 2001;Demir et al, 2008), common been (Ghassemi-Golezani and Mazloomi-Oskooyi, 2008), faba been (Ghassemi-Golezani and Hosseinzadeh-Mahootchy, 2009) and oilseed rape (GhassemiGolezani et al, 2011b). Low quality of seeds at the early stages of development was due to immaturity, while the decline in germination percentage and seedling dry weight at later stages ( Fig.…”

Section: Discussionsupporting

confidence: 90%

Effects of Water supply on Seed Development and Quality of Chickpea Cultivars

Ghassemi‐Golezani¹,

Ghassemi²

2014

Plant Breeding and Seed Science

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A split plot experiment (using RCB design) with three replications was conducted in 2012 and seed physiological quality of three chickpea (Cicer arietinum L.) cultivars (Azad, Arman and Jame) was evaluated at seven stages under well and limited irrigation conditions. Maximum seed weight (mass maturity) was achieved at 40-45 days after flowering. However, maximum seed quality was obtained 7 to 10 days after mass maturity, depending on irrigation intervals and cultivars. At earlier harvests, because of immaturity, and at later harvests, due to ageing, seed quality was low. Seed filling rate and maximum seed weight of chickpea decreased with decreasing water supply, but water deficit had no significant effects on seed quality as measured by germination percentage, germination rate and seedling dry weight. Significant differences in seedling dry weight among chickpea cultivars were attributed to significant variation in seed weight affected by genetic constitution.

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Section: Discussionsupporting

confidence: 90%

Effects of Water supply on Seed Development and Quality of Chickpea Cultivars

Ghassemi‐Golezani¹,

Ghassemi²

2014

Plant Breeding and Seed Science

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“…2, 3, 4 and 5). These results contradict the suggestions that seed quality is maximum at the end of the seed filling phase (Harington, 1972;Browne, 1978;Tekrony and Hunter, 1995;Tekrony and Egli, 1997), but are in agreement with those reported for rice (Ellis et al, 1993), wheat (Lehner et al, 2006), tomato (Demir and Samit, 2001;Demir et al, 2008), common been (Ghassemi-Golezani and Mazloomi-Oskooyi, 2008) and faba been (Ghassemi-Golezani and HosseinzadehMahootchy, 2009). Low seed quality at the early stages of seed development was due to immaturity, while the decline in quality parameters at later stages (Fig.…”

Section: Discussionsupporting

confidence: 52%

“…Maximum seed quality may be achieved at the end of seed filling period (Harington, 1972;Browne, 1978;Tekrony and Hunter, 1995;Tekrony and Egli, 1997) or slightly after this phase (Pieta Filho and Ellis, 1991;Ellis et al, 1993;Zanakis et al, 1994;Sanhewe and Ellis, 1996;Demir and Samit, 2001;Lehner et al, 2006;Ghassemi-Golezani and Mazloomi-Oskooyi, 2008;Ghassemi-Golezani and Hosseinzadeh-Mahootchy, 2009). The end of seed filling phase described as physiological maturity (Harington, 1972) or mass maturity (Ellis and Pieta Filho, 1992).…”

Section: Introductionmentioning

confidence: 99%

Development of Seed Physiological Quality in Winter Oilseed Rape (Brassica napus L.) Cultivars

Ghassemi‐Golezani

Sheikhzadeh-Mosaddegh

Shakiba

et al. 2011

Not Bot Hort Agrobot Cluj

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Stage of maturity at harvest is one of the most important factors that can influence the quality of seeds. This research was carried out in [2008][2009] to evaluate the development of physiological seed quality in three winter oilseed rape (Brassica napus L.) cultivars ('Modena' , 'Opera' and 'SLM 046 '). Seeds were harvested serially in 9-10 stages during their development and maturation. Maximum seed weight (mass maturity) was achieved at 48-54 days after flowering, when seed moisture content was 41-50%. However, maximum seed quality as measured by seed viability, germination percentage, germination rate and seedling dry weight was obtained 10 to 22 days after mass maturity. Thereafter, seed quality of all cultivars was started to decrease, due to ageing. Maximum germination rate of 'SLM 046 ' and maximum seedling dry weight of 'Opera' were significantly higher than those of other two cultivars. These variations in seed quality parameters were attributed to differences in genetic constitution among oilseed rape cultivars. It was concluded that high quality seeds of winter oilseed rape cultivars could be produced with 14-16% moisture content, which is suitable for direct and mechanical harvesting, threshing and storage without further drying.

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“…It has also been reported that GA can change the redox status in aleurone cells (Maya-Ampudia and Bernal-Lugo, 2006). In seeds, ROS play a key role in various events, such as maturation, ripening, aging, and germination (Bailly et al, 1996(Bailly et al, , 2008Lehner et al, 2006;Mü ller et al, 2009aMü ller et al, , 2009b. We had reported in our previous study that NADPH oxidases, which produce the superoxide anion (a type of ROS), regulate germination of barley seeds (Ishibashi et al, 2010).…”

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confidence: 72%

Reactive Oxygen Species Are Involved in Gibberellin/Abscisic Acid Signaling in Barley Aleurone Cells

et al. 2012

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Reactive oxygen species (ROS) act as signal molecules for a variety of processes in plants. However, many questions about the roles of ROS in plants remain to be clarified. Here, we report the role of ROS in gibberellin (GA) and abscisic acid (ABA) signaling in barley (Hordeum vulgare) aleurone cells. The production of hydrogen peroxide (H2O2), a type of ROS, was induced by GA in aleurone cells but suppressed by ABA. Furthermore, exogenous H2O2 appeared to promote the induction of α-amylases by GA. In contrast, antioxidants suppressed the induction of α-amylases. Therefore, H2O2 seems to function in GA and ABA signaling, and in regulation of α-amylase production, in aleurone cells. To identify the target of H2O2 in GA and ABA signaling, we analyzed the interrelationships between H2O2 and DELLA proteins Slender1 (SLN1), GA-regulated Myb transcription factor (GAmyb), and ABA-responsive protein kinase (PKABA) and their roles in GA and ABA signaling in aleurone cells. In the presence of GA, exogenous H2O2 had little effect on the degradation of SLN1, the primary transcriptional repressor mediating GA signaling, but it promoted the production of the mRNA encoding GAMyb, which acts downstream of SLN1 and involves induction of α-amylase mRNA. Additionally, H2O2 suppressed the production of PKABA mRNA, which is induced by ABA:PKABA represses the production of GAMyb mRNA. From these observations, we concluded that H2O2 released the repression of GAMyb mRNA by PKABA and consequently promoted the production of α-amylase mRNA, thus suggesting that the H2O2 generated by GA in aleurone cells is a signal molecule that antagonizes ABA signaling.

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Changes in wheat seed germination ability, soluble carbohydrate and antioxidant enzyme activities in the embryo during the desiccation phase of maturation

Cited by 55 publications

References 39 publications

Effects of Water supply on Seed Development and Quality of Chickpea Cultivars

Effects of Water supply on Seed Development and Quality of Chickpea Cultivars

Development of Seed Physiological Quality in Winter Oilseed Rape (Brassica napus L.) Cultivars

Reactive Oxygen Species Are Involved in Gibberellin/Abscisic Acid Signaling in Barley Aleurone Cells

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