Selected Seed Pretreatments on Germination of Kuwait’s Native Perennial Plant Species

Zaman, S.; Padmesh, Shyamala; Tawfiq, H.

doi:10.3923/ijb.2011.108.112

Cited by 7 publications

(7 citation statements)

References 9 publications

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“…GA 3 at high concentration dramatically suppressed sand pear embryo germination. Similar results were reported by Zaman et al (2011) in Convolvulus oxyphyllus . It was suggested that GA 3 at high concentrations could be toxic.…”

Section: Discussionsupporting

confidence: 92%

Exploring the hormonal and molecular regulation of sand pear (Pyrus pyrifolia) seed dormancy

et al. 2013

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Although pear species (Pyrus spp.) are widely cultivated as an important fruit tree in the world, the regulatory mechanism of their seed dormancy is still unclear. In this research, the role of endocarp, seed coat and embryo in sand pear (Pyrus pyrifolia) seed dormancy was analysed by detecting the endogenous abscisic acid (ABA) and analysing germination experiments with different treatments. The results suggest that a combination of testa and embryo impose sand pear seed dormancy. The high concentration of endogenous ABA in the embryo effectively inhibited seed germination. The high concentration of ABA in the endocarp, as well as in the testa, suggests that dissipation and/or degradation of endogenous ABA in imbibed embryos were suppressed to maintain ABA-inhibited germination. The ABA and gibberellic acid (GA) key signalling genes, including ABI3–5, GAI, RGA and RGL2, were cloned and their expression was analysed in ABA-treated embryos and embryos of imbibed nutlets, imbibed true seeds (endocarp removed) and GA-treated true seeds. The results revealed regulation by ABA of the expression of ABA and GA signalling factors controlling the dormancy release of sand pear imbibed seeds.

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Section: Discussionsupporting

confidence: 92%

Exploring the hormonal and molecular regulation of sand pear (Pyrus pyrifolia) seed dormancy

et al. 2013

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“…Giberellic acid accelerates germination by inducing the production of hydrolytic enzymes (Mozer, 1980) and cell plasticity (Taylor and Cosgrove, 1989). Scarification and stratification treatments were able to promote germination and growth of seedling in many of the angiosperms and gymnosperms (Esen et al, 2007), not only in herbaceous but also in tree species like Solanum nigrum (Suthar et al, 2009), Prunus scoparia and Prunus webbii (Heidari et al, 2008) and Aeluropus lagopoides (Zaman et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

Effect of pre-sowing treatments on seed germination in Quercus glauca Thunb., collected from different sampling sites of the Himalayan region of Pakistan

2015

Int. J. Biosci.

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This paper deals with the seed germination treatments of Quercus glauca Thunb., a member of the family Fagaceae a critically endangered species from the Himalayan region of Pakistan. Seeds of the species were collected from Mansehra, Batagram and Muzaffarabad Districts in November, 2013. Mature and ripened seeds were collected in suitable season from the selected sampling sites in polythene bags. Some of these collected seeds were scarified while others were subjected to stratification treatment only. Stratified treatments were given to the seeds for 10, 15 and 20 days in the laboratory. Others were scarified with knife and forceps. In stratified seeds, maximum germination rate i.e. 95.45% were observed in seeds collected from Batagram District while the lowest rate was observed in seeds collected from Mansehra District. Like-wise, for scarified treatment, maximum germination rate i.e. 100% was obtained in seeds collected from Batagram and Mansehra districts while in Muzaffarabad District lowest rate of germination i.e. 83% was observed. Scarified treatments proved to be more effective for this species as compared to stratified treatments. Therefore, these methods should be followed for the seed germination practices of these species and regeneration on larger scale.

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“…The selection of this species for the pathogenicity test was due to its widespread distribution in eastern Iran and the isolation of most isolates of this study was from this plant. The seeds of S. incanescens were collected from Amirabad village (32°52'50"N 59°07'31"E) and incubated after surface sterilization with 0.5% sodium hypochlorite in Petri plates under moist and sterile conditions at 25°C for 24 days (Zaman et al 2010). The germinated seeds morphological characteristics and sequence of 372 bp of ITS region of R2M isolate (Accession number: MG589492) had 100% similarity to the sequence of A. chlamydospora HTCR38 species of NCBI GenBank (Accession number: Mk809953).…”

Section: Methodsmentioning

confidence: 99%

Journal of Plant Protection Research

Razghandi,

Mohammadi,

Ghorbani

et al. 2020

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Species of the genus Salsola belong to the family Chenopodiaceae and are associated with large saline areas in eastern Iran. The aim of the study was to isolate and characterize the endophytic and phytopathogenic fungal communities from non-mycotrophic Salsola species. Sampling was done from different parts of Salsola plants in the Birjand region in 2017 and 2018. Isolation and identification of fungal isolates were done using biological characteristics and ITS region sequences. The pathogenicity of the representative isolates was investigated by cultivating disinfected Salsola incanescens seeds under greenhouse conditions and inoculating seedlings with a fungal spore suspension from 7 day old fungal colonies on PDA media. Based on morphological and molecular data, 27 isolates from 11 fungal species were isolated and identified from Salsola tissues. Alternaria alternata, A. chlamydospora, Aspergillus terreus, Macrophomina phaseolina, Fusarium longipes, Ulo cladium atrum, and Talaromyes pinophilus caused root or stem rotting and yellowing leaf of S. incanescens under greenhouse conditions. Aspergillus niger induced S. incanescens crown swelling without any pathogenicity. Clonostachys rosea, F. redolens and F. proli feratum grew as endophytic fungi on S. incanescens roots. This is the first report of phytopathogenic M. phaseolina, F. longipes, T. pinophilus, endophytic F. redolens and A. niger as a swelling agent on S. incanescens.

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Selected Seed Pretreatments on Germination of Kuwait’s Native Perennial Plant Species

Cited by 7 publications

References 9 publications

Exploring the hormonal and molecular regulation of sand pear (Pyrus pyrifolia) seed dormancy

Exploring the hormonal and molecular regulation of sand pear (Pyrus pyrifolia) seed dormancy

Effect of pre-sowing treatments on seed germination in Quercus glauca Thunb., collected from different sampling sites of the Himalayan region of Pakistan

Journal of Plant Protection Research

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