Amino acids, polyamines and proteins during seed germination of two species of Dipterocarpaceae

Huang, Han‐Xiong; Villanueva, Victor R.

doi:10.1007/bf00199621

Cited by 10 publications

(7 citation statements)

References 9 publications

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“…Improved root and shoot length, and seedling fresh and dry weights from seeds treated with polyamines might be due to increased cell division within the apical meristem, which caused an increase in plant growth (Huang and Villanueva 1992). Polyamines are known to play a vital role during cell division and its rate (Cvikrova et al 1999;Walker et al 1985).…”

Section: Discussionmentioning

confidence: 97%

Evaluating surface drying and re-drying for wheat seed priming with polyamines: effects on emergence, early seedling growth and starch metabolism

et al. 2011

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This study was conducted to investigate the benefits associated with re-drying after seed priming with polyamines. Wheat (cv. AS-2002) seeds were soaked in 10 and 20 mg L -1 aerated solutions of spermidine (Spd), putrescine (Put) and spermine (Spm), and distilled water (CK2) for 12 h at 28 ± 2°C. Untreated seeds (CK1) and priming in distilled water (CK2) were taken as control treatments. Seeds were primed in two sets: In one set, after each treatment, seeds were given three surface washings with distilled water and dried closer to original moisture; in the other, seeds were only surface dried and used immediately. Use of surface-dried seeds after priming was more effective since it reduced emergence time and synchronized the emergence. Moreover, final emergence, shoot and root length, seedling fresh and dry weight were also improved. Improved starch metabolism was considered possible reason of seed invigoration. All the seed treatments resulted in a lower electrical conductivity of seed leachates compared with control; however, there was more decrease in seeds re-dried after priming than the seeds surface dried after priming. Although the effect of all the polyamines was stimulatory, Spd was the more effective for most of the attributes studied. Nonetheless, Put was more effective for seedling fresh and dry weights. All the polyamines were more effective at lower concentrations except Spm, which improved the coefficient of uniformity of emergence at high concentration. To conclude, if immediate sowing is possible, use of surface-dried seeds after priming may be more effective; seed priming with 10 mg L -1 Spd was the most effective technique when surface dried.

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Section: Discussionmentioning

confidence: 97%

Evaluating surface drying and re-drying for wheat seed priming with polyamines: effects on emergence, early seedling growth and starch metabolism

et al. 2011

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“…These results could be clearly observed through higher root and shoot length, seedling fresh and dry weights, SVI and SGR. Improvement in growth attributes might be the result of increased cell division within the apical meristem, causing augmented seedling growth (Huang and Villanueva, 1992;Farooq et al, 2008). Polyamines are key players in modulating cell division and its rate (Cvikrova et al, 1999).…”

Section: Discussionmentioning

confidence: 99%

Exogenous Application of Polyamines Improves Germination and Early Seedling Growth of Hot Pepper

Khan

Ziaf

Amjad

et al. 2012

Chilean J. Agric. Res.

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Polyamines are low molecular weight organic compounds involved in diverse range of biological processes in all living organisms. Seed priming is a technique that improves seed performance by rapid and uniform germination with normal and vigorous seedlings. A laboratory study was performed to explore the benefits of seed priming with polyamines on seed germination and seedling growth of hot pepper (Capsicum annuum L.) Hot pepper seeds were primed in aerated solution of putrescine, spermine, or spermidine (25, 50, 75, and 100 mM) for 48 h at 25 ± 2 °C. Significant results (P < 0.05) were observed for different attributes of seed germination and early seedling growth. Polyamines priming resulted in earlier and synchronized germination via improving final germination percentage, time to 50% germination, mean germination time, germination energy, germination speed and germination index compared with control. Improvement in shoot and root length, seedling fresh and dry weight, seedling growth rate and seedling vigor index was clearly indicative of positive effects of seed priming with polyamines. Out of all polyamines, putrescine proved to be better at low concentrations (i.e. 25 and 50 mM) for most of the traits related to seed emergence and seedling growth.

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“…Higher SA concentration has been found to be toxic because of its possible involvement in reduction in cell division and negative effects on photosynthetic machinery (Elmer 2005). Improved root and shoot length, and seedling fresh and dry weights might be due to increased cell division within the apical meristem, which caused an increase in plant growth (Huang and Villanueva 1992). SA regulates cell growth by specifically affecting cell enlargement, endoreduplication and/or cell division (Vanacker et al 2001), protecting the cell structure (Kang et al 2007).…”

Section: Discussionmentioning

confidence: 99%

Chilling Tolerance in Hybrid Maize Induced by Seed Priming with Salicylic Acid

Farooq

Aziz

Basra

et al. 2008

J Agronomy Crop Science

207

123

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The optimum temperature for maize germination is between 25 and 28 °C. Poor and erratic germination at suboptimal temperature is the most important hindrance in its early sowing. This study was conducted to induce chilling tolerance in hybrid maize (Zea mays L.) by seed priming with salicylic acid (SA) and to unravel the background biochemical basis. For seed priming, maize hybrid (Hycorn 8288) seeds were soaked in 50, 100 and 150 ppm (mg l−1) aerated solutions of SA for 24 h and were dried back. Treated and untreated seeds were sown at 27 °C (optimal temperature) and at 15 °C (chilling stress) under controlled conditions. Performance of maize seedlings was hampered under chilling stress. But seed priming with SA improved the seedling emergence, root and shoot length, seedling fresh and dry weights, and leaf and root score considerably compared with control both at optimal and chilling temperatures. However, priming in 50 mg l−1 SA solution was more effective, followed by priming in 100 mg l−1 SA solution. Seed priming with SA improved the chilling tolerance in hybrid maize mainly by the activation of antioxidants (including catalase, superoxide dismutase and ascorbate peroxidase). Moreover, maintenance of high tissue water contents and reduced membrane permeability also contributed towards chilling tolerance.

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Amino acids, polyamines and proteins during seed germination of two species of Dipterocarpaceae

Cited by 10 publications

References 9 publications

Evaluating surface drying and re-drying for wheat seed priming with polyamines: effects on emergence, early seedling growth and starch metabolism

Evaluating surface drying and re-drying for wheat seed priming with polyamines: effects on emergence, early seedling growth and starch metabolism

Exogenous Application of Polyamines Improves Germination and Early Seedling Growth of Hot Pepper

Chilling Tolerance in Hybrid Maize Induced by Seed Priming with Salicylic Acid

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