Pub Date : 2021-03-21DOI: 10.22108/IJPB.2021.123339.1219
Mehdi Ghabooli, A. Hosseini
Drought is one of the major constraints to crop plant growth and development. The endophytic fungus, Piriformospora indica increases plant growth and development and enhances abiotic stress tolerance. To better understand the effect of P. indica inoculation on some morphophysiological traits and yield of Barley (Hordeum Vulgare L.) under drought stress condition, we designed a factorial experiment in a completely randomized design with three replications. The experimental factors included two fungal levels (inoculated and non-inoculated) and three drought levels (F.C., 50% F.C., 25% F.C.). The results showed that inoculation of barley plants with P. indica enhances dry weight of colonized plants under both well-watered (7%) and water-deficit conditions (43%). Based on experiment data, P. indica increased carbon (4%), potassium (20%), proline (2.03 times) and GABA (20%) content in inoculated plants compared with control plant under drought stress; Besides, endophyte fungus P. indica promoted the photosynthetic capacity of inoculated plants by increasing K/Na and C/N ratios, hence improve drought stress tolerance. The results also showed that P. indica increases the most of the measured yield parameters like as seed (86%) and spike number (66%), TGW (26%) and seed yield (1.9 times) in inoculated plants compared with control plants under ambient and stress condition. As, P. indica can be easily propagated in the absence of a host plant, it can be concluded that treatment with this endophytic fungus as bio-fertilizer can enhance the growth and yield of barley plants, which may act as an alternative to conventional chemical-based strategies.
{"title":"Piriformospora indica promotes some morphophysiological traits, yield and ion homeostasis of barley (Hordeum Vulgare L.) under drought stress","authors":"Mehdi Ghabooli, A. Hosseini","doi":"10.22108/IJPB.2021.123339.1219","DOIUrl":"https://doi.org/10.22108/IJPB.2021.123339.1219","url":null,"abstract":"Drought is one of the major constraints to crop plant growth and development. The endophytic fungus, Piriformospora indica increases plant growth and development and enhances abiotic stress tolerance. To better understand the effect of P. indica inoculation on some morphophysiological traits and yield of Barley (Hordeum Vulgare L.) under drought stress condition, we designed a factorial experiment in a completely randomized design with three replications. The experimental factors included two fungal levels (inoculated and non-inoculated) and three drought levels (F.C., 50% F.C., 25% F.C.). The results showed that inoculation of barley plants with P. indica enhances dry weight of colonized plants under both well-watered (7%) and water-deficit conditions (43%). Based on experiment data, P. indica increased carbon (4%), potassium (20%), proline (2.03 times) and GABA (20%) content in inoculated plants compared with control plant under drought stress; Besides, endophyte fungus P. indica promoted the photosynthetic capacity of inoculated plants by increasing K/Na and C/N ratios, hence improve drought stress tolerance. The results also showed that P. indica increases the most of the measured yield parameters like as seed (86%) and spike number (66%), TGW (26%) and seed yield (1.9 times) in inoculated plants compared with control plants under ambient and stress condition. As, P. indica can be easily propagated in the absence of a host plant, it can be concluded that treatment with this endophytic fungus as bio-fertilizer can enhance the growth and yield of barley plants, which may act as an alternative to conventional chemical-based strategies.","PeriodicalId":344320,"journal":{"name":"Iranian Journal of Plant Biology","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133192804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-06-21DOI: 10.22108/IJPB.2020.123183.1216
M. Rabie, Narges Bijary, Y. Asri, G. Khaniki
Jujube (Ziziphus jujuba Miller) is one of the valuable medicinal plants that is widely used in traditional medicine and pharmaceutical industries. This species is native to Iran and due to the wide range of ecological tolerance in different parts of the country with different climatic conditions is naturally distributed and planted. The aim of this study was to investigate the effect of ecological factors on morphological, anatomical and phytochemical traits of jujube natural populations in three regions of South Khorasan province. The highest values of morphological traits including height, diameter of breast-height, canopy diameter and canopy cover, length, width and weight of fruit are related to Shahrakht habitat, and leaf length and width to Alghor habitat. The highest values of anatomical traits including number of layers and thickness of spongy parenchyma, thickness of epidermis, midrib and bundle sheath and stomata length were observed in Bijar habitat. Also, the highest values of thickness of lamina, mesophyll and cuticle as well as number of layers and thickness of collenchyma and palisade and number of stomata are related to Shahrakht habitat. In addition, the highest amount of phytochemical traits including extract and antioxidant activity belong to Bijar habitat and the amounts of total phenol and flavonoids belong to Shahrakht habitat. Analysis of variance showed that there was a significant difference between all these traits in the three populations. The results of Pearson correlation showed that among environmental factors, rainfall, annual temperature and altitude had the highest significant correlation with the studied traits, respectively.
{"title":"The effect of some environmental factors on morphological, anatomical and phytochemical traits of Jujube (Ziziphus jujuba Miller) in South Khorasan province, Iran","authors":"M. Rabie, Narges Bijary, Y. Asri, G. Khaniki","doi":"10.22108/IJPB.2020.123183.1216","DOIUrl":"https://doi.org/10.22108/IJPB.2020.123183.1216","url":null,"abstract":"Jujube (Ziziphus jujuba Miller) is one of the valuable medicinal plants that is widely used in traditional medicine and pharmaceutical industries. This species is native to Iran and due to the wide range of ecological tolerance in different parts of the country with different climatic conditions is naturally distributed and planted. The aim of this study was to investigate the effect of ecological factors on morphological, anatomical and phytochemical traits of jujube natural populations in three regions of South Khorasan province. The highest values of morphological traits including height, diameter of breast-height, canopy diameter and canopy cover, length, width and weight of fruit are related to Shahrakht habitat, and leaf length and width to Alghor habitat. The highest values of anatomical traits including number of layers and thickness of spongy parenchyma, thickness of epidermis, midrib and bundle sheath and stomata length were observed in Bijar habitat. Also, the highest values of thickness of lamina, mesophyll and cuticle as well as number of layers and thickness of collenchyma and palisade and number of stomata are related to Shahrakht habitat. In addition, the highest amount of phytochemical traits including extract and antioxidant activity belong to Bijar habitat and the amounts of total phenol and flavonoids belong to Shahrakht habitat. Analysis of variance showed that there was a significant difference between all these traits in the three populations. The results of Pearson correlation showed that among environmental factors, rainfall, annual temperature and altitude had the highest significant correlation with the studied traits, respectively.","PeriodicalId":344320,"journal":{"name":"Iranian Journal of Plant Biology","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115247537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
بمنظور بررسی تحمل به تنش یخزدگی ارقام زیتون، آزمایشی بهصورت فاکتوریل در قالب طرح کاملا تصادفی با سه تکرار در شرایط کنترل شده و فاکتورهای رقم (زرد، روغنی، کرونایکی و میشن)، دما (18- و 20- درجه سلسیوس) و مدت سرمادهی (24 و 48 ساعت) اجرا شد. تفاوت بین ارقام از نظر درصد نشت الکترولیتها و محتوی پرولین آزاد معنیدار بود. نتایج اعمال تنش یخزدگی بهمدت 24 و 48 ساعت نشان داد که با کاهش دما نشت الکترولیتها و پرولین در ارقام مورد مطالعه به ترتیب افزایش و کاهش نشان دادند؛ با این وجود تغییرات محتوی پرولین از روند منظمتری برخوردار بود. همچنین در دمای 18- درجه سلسیوس بیشترین و کمترین درصد نشت الکترولیت به ترتیب مربوط به ارقام کرونایکی و روغنی بود و در دمای 20- درجه سلسیوس ترتیب درصد نشت الکترولیتها برای ارقام به صورت کرونایکی> میشن-روغنی> زرد حاصل شد و در شرایط مشابه، بالاترین و پائینترین مقدار پرولین به ترتیب متعلق به ارقام زرد و کرونایکی بود. بر اساس نتایج ، محتوی پرولین و نشت الکترولیتها در تفکیک ارقام مقاوم و حساس کارایی قابل قبولی داشتند. علاوهبراین رقم بومی زرد واکنش ویژهای تحت شرایط یخزدگی نشان داد؛ بطوریکه در دمای بحرانی 20- درجه سلسیوس و 24 ساعت سرمادهی در مقایسه با سایر ارقام بهترتیب کمترین و بیشترین میزان نشت الکترولیتها و پرولین را به خود اختصاص داد. همچنین در یک مدت زمان ثابت با کاهش دما تفاوت معنیداری در نشت الکترولیتها برای این رقم مشاهده نگردید. شاید بتوان رقم بومی "زرد" را به عنوان یک رقم با قابلیت ویژه جهت کشت در مناطق تحت تنش یخزدگی یپیشنهاد نمود.
{"title":"ارزیابی تحمل به تنش یخزدگی در چهار رقم زیتون (بومی و خارجی) بر اساس شاخص-های فیزیولوژیک در شرایط خوسرمایی","authors":"طیبه بساکی, سید مجتبی خیام نکویی, ثریا کرمی, سکینه فرجی, مریم جلیلی","doi":"10.22108/IJPB.2019.115335.1137","DOIUrl":"https://doi.org/10.22108/IJPB.2019.115335.1137","url":null,"abstract":"بمنظور بررسی تحمل به تنش یخزدگی ارقام زیتون، آزمایشی بهصورت فاکتوریل در قالب طرح کاملا تصادفی با سه تکرار در شرایط کنترل شده و فاکتورهای رقم (زرد، روغنی، کرونایکی و میشن)، دما (18- و 20- درجه سلسیوس) و مدت سرمادهی (24 و 48 ساعت) اجرا شد. تفاوت بین ارقام از نظر درصد نشت الکترولیتها و محتوی پرولین آزاد معنیدار بود. نتایج اعمال تنش یخزدگی بهمدت 24 و 48 ساعت نشان داد که با کاهش دما نشت الکترولیتها و پرولین در ارقام مورد مطالعه به ترتیب افزایش و کاهش نشان دادند؛ با این وجود تغییرات محتوی پرولین از روند منظمتری برخوردار بود. همچنین در دمای 18- درجه سلسیوس بیشترین و کمترین درصد نشت الکترولیت به ترتیب مربوط به ارقام کرونایکی و روغنی بود و در دمای 20- درجه سلسیوس ترتیب درصد نشت الکترولیتها برای ارقام به صورت کرونایکی> میشن-روغنی> زرد حاصل شد و در شرایط مشابه، بالاترین و پائینترین مقدار پرولین به ترتیب متعلق به ارقام زرد و کرونایکی بود. بر اساس نتایج ، محتوی پرولین و نشت الکترولیتها در تفکیک ارقام مقاوم و حساس کارایی قابل قبولی داشتند. علاوهبراین رقم بومی زرد واکنش ویژهای تحت شرایط یخزدگی نشان داد؛ بطوریکه در دمای بحرانی 20- درجه سلسیوس و 24 ساعت سرمادهی در مقایسه با سایر ارقام بهترتیب کمترین و بیشترین میزان نشت الکترولیتها و پرولین را به خود اختصاص داد. همچنین در یک مدت زمان ثابت با کاهش دما تفاوت معنیداری در نشت الکترولیتها برای این رقم مشاهده نگردید. شاید بتوان رقم بومی \"زرد\" را به عنوان یک رقم با قابلیت ویژه جهت کشت در مناطق تحت تنش یخزدگی یپیشنهاد نمود.","PeriodicalId":344320,"journal":{"name":"Iranian Journal of Plant Biology","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116467814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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