نتایج جستجو برای: adventitious agents

تعداد نتایج: 362471  

Journal: :The Plant cell 2009
Laurent Gutierrez John D Bussell Daniel I Pacurar Josèli Schwambach Monica Pacurar Catherine Bellini

The development of shoot-borne roots, or adventitious roots, is indispensable for mass propagation of elite genotypes. It is a complex genetic trait with a high phenotypic plasticity due to multiple endogenous and environmental regulatory factors. We demonstrate here that a subtle balance of activator and repressor AUXIN RESPONSE FACTOR (ARF) transcripts controls adventitious root initiation. M...

2017
D. Zou M. Liu M. Cong N. Cheng H. Gao S. Wang Z. Liu Zongshen Zhang Dan Zou Ming Liu Min Cong Nuo Cheng Hui Gao Songwei Wang Zhiwei Liu Gang Li

In this study, callus of P. tunicoides was used to induce adventitious roots. It was found that the medium with indole-3-butyric acid (IBA) was most suitable for induction of P. tunicoides adventitious roots from callus. To investigate the effects of concentration and type of auxins on adventitious roots induction, an orthogonal test was deployed. It was shown that 2,4Dichlorophenoxyacetic acid...

Journal: :حفاظت گیاهان 0
ولایتی ولایتی زمانی زمانی جامی الاحمدی جامی الاحمدی راشد محصل راشد محصل حسینی حسینی

abstract most allelopathic studies have demonstrated the importance of live and dead plant tissues as source of allelochemicals. seeds of several species also have inhibitory effects on germination of the same or other species. in order to determine the allelopathic effects of common lambsquarters (chenopodium album) seeds, an experiment was conducted under controlled conditions in birjand univ...

2018
Isabel Velada Dariusz Grzebelus Diana Lousa Cláudio M Soares Elisete Santos Macedo Augusto Peixe Birgit Arnholdt-Schmitt Hélia G Cardoso

Propagation of some Olea europaea L. cultivars is strongly limited due to recalcitrant behavior in adventitious root formation by semi-hardwood cuttings. One example is the cultivar "Galega vulgar". The formation of adventitious roots is considered a morphological response to stress. Alternative oxidase (AOX) is the terminal oxidase of the alternative pathway of the plant mitochondrial electron...

Journal: :The Plant journal : for cell and molecular biology 2010
Sangeeta Negi Poornima Sukumar Xing Liu Jerry D Cohen Gloria K Muday

In this study we investigated the role of ethylene in the formation of lateral and adventitious roots in tomato (Solanum lycopersicum) using mutants isolated for altered ethylene signaling and fruit ripening. Mutations that block ethylene responses and delay ripening -Nr (Never ripe), gr (green ripe), nor (non ripening), and rin (ripening inhibitor) - have enhanced lateral root formation. In co...

Journal: :Molecules 2017
Xiaolin Song Hao Wu Zhenhao Yin Meilan Lian Chengri Yin

Ginsenoside is the most important secondary metabolite of ginseng. Natural sources of wild ginseng have been overexploited. Although root culture could reduce the length of the growth cycle of ginseng, the number of ginsenosides is fewer and their contents are lower in adventitious roots of ginseng than that in ginseng cultivated in the field. In this study, we investigated the effects of endop...

2013
Zhenyan Yu Zhaoxia Jin Yunfang Li

The aim of this study was to establish an adventitious roots culture system for sterile plantlet segments of P. tunicoides and improved the accumulation of total saponins in cultured roots. Psammosilene tunicoides is a native Chinese plant with high commercial value as medicinal herb. Combination of NAA and IBA significantly affected the adventitious roots formation on agar-solided B5 media and...

2014
Kang Wei Li-Yuan Wang Li-Yun Wu Cheng-Cai Zhang Hai-Lin Li Li-Qiang Tan Hong-Li Cao Hao Cheng

Tea (Camellia sinensis L.) is a popular world beverage, and propagation of tea plants chiefly depends on the formation of adventitious roots in cuttings. To better understand potential mechanisms involved in adventitious root formation, we performed transcriptome analysis of single nodal cuttings of C. sinensis treated with or without indole-3-butyric acid (IBA) using the Illumina sequencing me...

2015
Sergio Tombesi Alberto Palliotti Stefano Poni Daniela Farinelli

Adventitious root formation in plant cuttings is influenced by many endogenous and environmental factors. Leaf photosynthesis during rooting of leafy cuttings in hard to root species can contribute to supply carbohydrates to the intensive metabolic processes related to adventious root formation. Light intensity during rooting is artificially kept low to decrease potential cutting desiccation, b...

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