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اثر طول و عرض جغرافیایی بر تغییرات کمی برخی از ویژگیهای آناتومیکی و مورفولوژیکی برگ گونهAlnus subcordata C. A. Mey. در جنگل‌های هیرکانی | ||
| گیاهشناسی ایران | ||
| دوره 26، شماره 1، بهار و تابستان 1399، صفحه 75-90 اصل مقاله (1.92 MB) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijb.2020.343127.1285 | ||
| نویسندگان | ||
روح‌‌انگیز عباس‌عظیمی  1؛ عادل جلیلی2؛ غلامرضا بخشی خانیکی3؛ حمید سبحانیان3؛ محمد متینی زاده2
| ||
| 1دانشگاه پیام نور و محقق مؤسسه تحقیقات جنگل‌ها و مراتع، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران، ایران | ||
| 2مؤسسه تحقیقات جنگل‌ها و مراتع کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران، ایران | ||
| 3دانشکده علوم، گروه زیست‌شناسی، دانشگاه پیام نور، تهران، ایران | ||
| چکیده | ||
| اثر عوامل اکولوژیکی و میان‌کنش آنها بر تغییرات کمی20 صفت آناتومیکی و دو صفت مورفولوژیکی در شش جمعیت مختلف توسکای ییلاقی (Alnus subcordata C. A. Mey.) در غرب و شرق جنگل‌های هیرکانی در سه طبقه ارتفاعی پایین‌بند، میان‌بند و بالابند بررسی و مورد مقایسه آماری قرار گرفت. صفات سطح برگ، کرک‌های غده‌ای، ضخامت سلول‌های کوتیکولی و تراکم روزنه‌ها از غرب به شرق کاهش و در سه طبقه ارتفاع از سطح دریا اختلاف معنی‌دار داشته و بین صفات نیز همبستگی مثبت وجود دارد. ضخامت برگ و ضخامت سلول‌های اپیدرم فوقانی از غرب به شرق روند افزایشی و میان‌کنش ویژگیهای اکولوژیکی نیز معنی‌دار بوده است. ضخامت و پهنای سلول‌های نردبانی، ضخامت سلول‌های اسفنجی، تعداد لایه‌های اسفنجی و ضخامت رگبرگ اصلی از شرق به غرب معنی‌دار نبوده است، اما اختلاف آنها از نظر ارتفاع از سطح دریا معنی‌دار هستند. همچنین، همبستگی مثبت بین سطح برگ، تراکم روزنه، طول کرک، ضخامت کوتیکول با ضخامت رگبرگ نیز دیده می‌شود. تعداد لایه‌های کلانشیم رگبرگ اصلی در سطح تحتانی، ضخامت سلول‌های پارانشیمی و تعداد لایه‌های آن در سطح تحتانی و ضخامت دستجات آوندی در رگبرگ اصلی نیز با تغییر ارتفاع از سطح دریا افزایش معنی‌دار داشته است. تیپ‌های مختلف روزنه نیز در این گونه مشاهده شده است. | ||
| کلیدواژه‌ها | ||
| Leaf anatomy؛ morphology؛ altitude؛ rainfall؛ Guilan؛ Golestan؛ Iran | ||
| عنوان مقاله [English] | ||
| EFFECT OF LATITUDE AND LONGITUDE ON QUANTITATIVE CHANGES OF SOME ANATOMICAL AND MORPHOLOGICAL FEATURES OF ALNUS SUBCORDATA C. A. MEY. LEAVES IN HYRCANIAN FORESTS | ||
| نویسندگان [English] | ||
| Rouhangiz Abbas-Azimi1؛ Adel Jalili2؛ Gholamreza Bakhshi-Khaniki3؛ Hamid Sobhanian3؛ Mohammed Matinizadeh2 | ||
| 1Payam Noor University and Research Institute of Forests and Rangelands, Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran | ||
| 2Research Institute of Forests & Rangelands, Agricultural Research, Education and extension Organization (AREEO), Tehran, Iran | ||
| 3Department of Biology, Payame Noor University (PNU), Tehran, Iran, | ||
| چکیده [English] | ||
| The effect of ecological factors and their interactions on quantitative changes of 20 anatomical and two morphological traits of leaves in six different populations of Alnus subcordata C. A. Mey. in the west and east of the Hyrcanian forests in three elevation classes include lowland, midland and highland were analyzed and compared. Leaf area, glandular trichomes, thickness of cuticle cells, and stomatal density decreased from west to east and were significantly different in three classes of altitude. There is a positive correlation between traits. Leaf thickness and thickness of adaxial epidermal cells, from west to east, were also significantly influenced by the interaction of ecological features. The decrease rainfall from west to east and altitude have affected the mentioned anatomical traits. Thickness and width of palisade cells, thickness of spongy cells, number of spongy layers and the thickness of the main veins from east to west were not significant, but in terms of elevations, their differences were significant. Also, there was a positive correlation between leaf area, stomatal density, glandular trichome maximal length, cuticle thickness and vein thickness. Number of adaxial collenchymas layers of vein, thickness of vein abaxial parenchyma cells, number of abaxial parenchyma layers of vein and thickness of vascular bundle of vein also increased significantly as altitude increased. Various types of stomata have also been observed in this species. | ||
| کلیدواژه‌ها [English] | ||
| Leaf anatomy, morphology, altitude, rainfall, Guilan, Golestan, Iran | ||
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آمار تعداد مشاهده مقاله: 13 تعداد دریافت فایل اصل مقاله: 30 |
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