MERISTEM STRUCTURE, DEVELOPMENT OF CONES AND MICROSPOROGENESIS OF TEHRAN PINE (PINUS ELDARICA Medw.)
Tehran pine (Pinus eldarica Medw.) belongs to Pinaceae family with significant economic and ecological benefits. To gain further insight into anatomical-developmental structure of P. eldarica, both the vegetative and generative meristematic tissues and microsporogenesis were been studied during cert...
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| Format: | Article |
| Language: | English |
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Alexandru Ioan Cuza University of Iasi
2014-12-01
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| Series: | Journal of Plant Development |
| Subjects: | |
| Online Access: | http://www.plant-journal.uaic.ro/docs/2014/10.pdf |
| _version_ | 1818579805631676416 |
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| author | Ahmad MAJD Saeed IRIAN Parisa JONOUBI Faride ASGARI |
| author_facet | Ahmad MAJD Saeed IRIAN Parisa JONOUBI Faride ASGARI |
| author_sort | Ahmad MAJD |
| collection | DOAJ |
| description | Tehran pine (Pinus eldarica Medw.) belongs to Pinaceae family with significant economic and ecological benefits. To gain further insight into anatomical-developmental structure of P. eldarica, both the vegetative and generative meristematic tissues and microsporogenesis were been studied during certain stages of development. To do this, meristematic tissues and male cones were initially fixed in FAA solution (37% formaldehyde, 96% ethanol and glacial acetic acid with a 2:7:1 ratio, respectively). They were then embedded in paraffin and sectioned using a rotary microtome. Prior to visualization and photography under a camera-equipped light microscope, they were stained with hematoxylin-eosin (Zeiss model). Our results revealed the vegetative meristem of P. eldarica to be in the Cryptomerya-Abies category. The results also indicated it is a protuberant (dome-like) type containing four regions. The meiosis occurs before the winter dormancy and continues through the winter. The pollen is shed at the four-cell stage of development. |
| first_indexed | 2024-12-16T07:07:32Z |
| format | Article |
| id | doaj.art-4e042d6137bf4473b36664dace2de300 |
| institution | Directory Open Access Journal |
| issn | 2065-3158 2066-9917 |
| language | English |
| last_indexed | 2024-12-16T07:07:32Z |
| publishDate | 2014-12-01 |
| publisher | Alexandru Ioan Cuza University of Iasi |
| record_format | Article |
| series | Journal of Plant Development |
| spelling | doaj.art-4e042d6137bf4473b36664dace2de3002022-12-21T22:39:59ZengAlexandru Ioan Cuza University of IasiJournal of Plant Development2065-31582066-99172014-12-012118393MERISTEM STRUCTURE, DEVELOPMENT OF CONES AND MICROSPOROGENESIS OF TEHRAN PINE (PINUS ELDARICA Medw.)Ahmad MAJD0Saeed IRIAN1Parisa JONOUBI2Faride ASGARI3Kharazmi University, Faculty of Biological Science, Department of Plant Biology, Tehran – IranKharazmi University, Faculty of Biological Science, Department of Plant Biology, Tehran – IranKharazmi University, Faculty of Biological Science, Department of Plant Biology, Tehran – IranKharazmi University, Faculty of Biological Science, Department of Plant Biology, Tehran – IranTehran pine (Pinus eldarica Medw.) belongs to Pinaceae family with significant economic and ecological benefits. To gain further insight into anatomical-developmental structure of P. eldarica, both the vegetative and generative meristematic tissues and microsporogenesis were been studied during certain stages of development. To do this, meristematic tissues and male cones were initially fixed in FAA solution (37% formaldehyde, 96% ethanol and glacial acetic acid with a 2:7:1 ratio, respectively). They were then embedded in paraffin and sectioned using a rotary microtome. Prior to visualization and photography under a camera-equipped light microscope, they were stained with hematoxylin-eosin (Zeiss model). Our results revealed the vegetative meristem of P. eldarica to be in the Cryptomerya-Abies category. The results also indicated it is a protuberant (dome-like) type containing four regions. The meiosis occurs before the winter dormancy and continues through the winter. The pollen is shed at the four-cell stage of development.http://www.plant-journal.uaic.ro/docs/2014/10.pdfcone developmentgenerative meristemmicrosporogenesispollen grainPinus eldarica |
| spellingShingle | Ahmad MAJD Saeed IRIAN Parisa JONOUBI Faride ASGARI MERISTEM STRUCTURE, DEVELOPMENT OF CONES AND MICROSPOROGENESIS OF TEHRAN PINE (PINUS ELDARICA Medw.) Journal of Plant Development cone development generative meristem microsporogenesis pollen grain Pinus eldarica |
| title | MERISTEM STRUCTURE, DEVELOPMENT OF CONES AND MICROSPOROGENESIS OF TEHRAN PINE (PINUS ELDARICA Medw.) |
| title_full | MERISTEM STRUCTURE, DEVELOPMENT OF CONES AND MICROSPOROGENESIS OF TEHRAN PINE (PINUS ELDARICA Medw.) |
| title_fullStr | MERISTEM STRUCTURE, DEVELOPMENT OF CONES AND MICROSPOROGENESIS OF TEHRAN PINE (PINUS ELDARICA Medw.) |
| title_full_unstemmed | MERISTEM STRUCTURE, DEVELOPMENT OF CONES AND MICROSPOROGENESIS OF TEHRAN PINE (PINUS ELDARICA Medw.) |
| title_short | MERISTEM STRUCTURE, DEVELOPMENT OF CONES AND MICROSPOROGENESIS OF TEHRAN PINE (PINUS ELDARICA Medw.) |
| title_sort | meristem structure development of cones and microsporogenesis of tehran pine pinus eldarica medw |
| topic | cone development generative meristem microsporogenesis pollen grain Pinus eldarica |
| url | http://www.plant-journal.uaic.ro/docs/2014/10.pdf |
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