https://www.pagepress.org/journals/index.php/pb/issue/feed International Journal of Plant Biology 2019-08-25T10:35:19+02:00 Emanuela Fusinato emanuela.fusinato@pagepress.org Open Journal Systems <p>The<strong> International Journal of&nbsp;Plant Biology</strong> is an Open Access, online-only, peer-reviewed journal that considers scientific papers in all different subdisciplines of plant biology, such as physiology, molecular biology, cell biology, development, genetics, systematics, ecology, evolution, ecophysiology, plant-microbe interactions, mycology and phytopathology. The<strong> International Journal of&nbsp;Plant Biology</strong> publishes original articles, brief reports, and reviews. From a multidisciplinary perspective, our journal will provide a platform for publication, information and debate, encompassing all areas which fall within the scope of plant science.</p> https://www.pagepress.org/journals/index.php/pb/article/view/7441 Susceptibility of six corn varieties (Zea maysL.) to Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae) 2019-08-25T10:35:19+02:00 L.P. Astuti lpa_315@yahoo.com S.M. Yahya yahya.smy@yahoo.com M.S. Hadi hadi.msh@yahoo.com <p>Agricultural produce is commonly stored in warehouses after the harvest period, before being utilized and fulfilling the crop stock. However, crop threats are not only present during cultivation and harvest, but crops can also be infected during storage, which leads to agricultural loss. This research aimed to observe the resistance level of corn varieties of Bisma, Bisi 18, Bisi 19, Pioneer 21, Pioneer 29, and Pertiwi 3 to the <em>Sitophilus zeamaispest</em> of stored product insects. This resistance was based on the mechanism of non-preference (antixenosis) resistance, measured with the Free Choice Test Method (FCTM), and antibiosis resistance mechanism, measured with the No Choice Test Method (NCTM). The results showed that based on the susceptibility index (Dobie, 1974), corn varieties of Pertiwi 3 were categorized as resistant to <em>S. zeamais </em>pests, while the varieties of Bisi 19, Bisma, Bisi 18, Pioneer 21 and Pioneer 29 were moderately resistant.</p> 2019-06-12T11:39:41+02:00 ##submission.copyrightStatement## https://www.pagepress.org/journals/index.php/pb/article/view/7458 Evaluation of antidepressant-like effect Lavandulifolia stachys in the forced swimming test in comparison with imipramine and fluoxetine 2019-08-25T10:35:18+02:00 Shirali Kharamin yasujsabz@gmail.com Saeed Razmeh srazmeh@yahoo.com Mona Nabovvati M.nabovvati@gmail.com Karim Moradian srazmeh@yahoo.com Samaneh Rahimi ssrahimi842@gmail.com Maryam Orooji srazmeh@yahoo.com Laleh Taghavian srazmeh@yahoo.com Majid Kherad Mand Maher norodiasht@gmail.com <p>Depression is a global problem associated with multiple social and health issues. In the present study, we analyzed the antidepressant effects of <em>Lavandulifolia stachys</em>, an herbal planton forced swimming test (FST). In this study, 36 rats were used. We gavaged the <em>aqueous extract of plant</em> (50, 100, 150 mg/kg), imipramine and fluoxetine (20 mg/kg) as standard antidepressant drug and normal saline for control group for a week. Then, their behavioral responses including climbing, swimming and immobility were recorded during the 5-min FST. Our experiments showed significant effects of <em>Lavandulifolia stachys</em> on swimming and immobility but not effect on climbing behaviors. Imipramine and fluoxetine increased climbing and swimming, respectively, and both reduced immobility, compared to saline control. Finally, our results show the extract of <em>Lavandulifolia stachys</em> could play an important role in treatment of depression like fluoxetine.</p> 2019-06-12T11:46:56+02:00 ##submission.copyrightStatement## https://www.pagepress.org/journals/index.php/pb/article/view/7526 Clonal integration of the invasive plant Wedelia trilobata (L.) Hitch in stress of flooding type combination 2019-06-14T11:47:15+02:00 Endang Saptiningsih saptiningsihe@yahoo.co.id Kumala Dewi dewi.kd@yahoo.com S. Santosa santosa.ss@yahoo.com Yekti A. Purwestri purwestri.yap@yahoo.com <p>The clonal invasion of <em>Wedelia trilobata</em> (L.) Hitchhas spread to riverside and edges of mangrove areas, which leads to the formation of flooding-stressed areas such as waterlogged and submergence. This study purpose to investigate the clonal integration mechanism of <em>W. trilobata</em> in stress of flooding type combination. This study was conducted in greenhouse with four combinations of flooding treatment on mother ramet (MR) and daughter ramet (DR) for 25 days. Several parameters were measured are shoot growth, relative growth rate (RGR), biomass, biomass allocation, adventitious root growth, and lenticel hypertrophy. The highest clonal performance was observed for the combination of field capacity (MR)-waterlogged( DR). The lowest performance was observed for the combination of waterlogged (MR)-submergence (DR). There were decreases in the shoot growth, RGR, and biomass allocation in mother ramet. However, adventitious root growth and lenticel hypertrophy increased in daughter ramet. The increase of flooding pressure suppresses the performance of clonal plants. Clonal integration buffered clonal plants by improving the performance of daughter ramet in the combination of flooding type. The clonal integration has facilitated <em>W. trilobata</em> invasion in inundated areas.</p> 2019-06-03T00:00:00+02:00 ##submission.copyrightStatement## https://www.pagepress.org/journals/index.php/pb/article/view/7308 Effect of two bottom fertilizers and previous crop on yield of durum wheat breeding seed (Triticum durum Desf.) 2019-08-25T10:35:16+02:00 Nadia Chiahi nchiahidz@gmail.com Louhichi Brinis lbrinis23dz@gmail.com <p>To improve the yield of durum wheat seed (<em>Triticum durum</em> Desf.), seven varieties were grown in an experimental field (Tifech region in Souk Ahras). The study focused on planting the varieties on two cropping precedents (sorghum and fallow grazing), in addition to the use of two bottom fertilizers, one potassic (Fosfactyl) and the other phoshonitrogen, (DAP). The analysis of the results showed a clear improvement in grain yields in the varieties harvested from the previous crop (Sorgho) and having received Fosfactyl as fertilizer. The best grain yields were displayed by the Carioca, Boussallem and Sersou varieties. After harvest, the study of soil parameters of the respective parcels showed soil with a sandy loam texture, with a low organic matter, with a slightly alkaline pH, while being low in salts.</p> 2019-06-14T10:01:31+02:00 ##submission.copyrightStatement## https://www.pagepress.org/journals/index.php/pb/article/view/7978 Conservation status and threats to vascular plant species endemic to Soutpansberg Mountain range in Limpopo Province, South Africa 2019-08-25T10:35:15+02:00 Ikarabeng Moraswi reachtoba@gmail.com Samuel Oloruntoba Bamigboye reachtoba@gmail.com Milingoni Peter Tshisikhawe reachtoba@gmail.com <p>Soutpansberg Mountain range is one of the main biodiversity hotspots in South Africa and it is located in Limpopo Province. It possesses high diversity of flora and fauna. Communities surrounding this mountain have long benefited from the ecosystem services that the area provides. It is of importance to determine the threat status of plant species endemic to this mountain range that has been a great source of ecosystem services. Twenty-two endemic vascular plant species of the mountain range have been identified. In this study we use the South African National Biodiversity Institute (SANBI) current 2017 version Red List categories to determine the threat status of plant species endemic to Soutpansberg Mountain range. SANBI is the national body in South African that is responsible for national threat assessment for plant and animal species and they also provide data to IUCN (International Union ofC onservation of Nature) on threat status of plant and animal taxa found in South Africa. We calculated the categorical percentages of threat status of endemic vascular plants species of Soutpansberg Mountain range and the threats these plant species are facing were gotten from SANBI Red List. This study showed that over 50% of the plant species endemic to this area are of conservation concern meaning they deserve conservation attention. Majority of threats are due to anthropogenic pressure. This implies that the endemic flora of this region is facing risk of extinction. This study recommends protection of all the endemic plant species of this mountain range in order to prevent theirf uture extinction.</p> 2019-06-14T11:52:11+02:00 ##submission.copyrightStatement## https://www.pagepress.org/journals/index.php/pb/article/view/7440 Kinetics study the decomposition of the cellulose into cellulose nanocrystals by hydrothermal with hydrochloric acid catalyst 2019-08-25T10:35:14+02:00 Zulnazri Zulnazri zulnazri@unimal.ac.id Rozanna Dewi zulnazri@unimal.ac.id Sulhatun Sulhatun sumarno.ss@yahoo.com Nasrun Nasrun zulnazri@unimal.ac.id <p>The aim of this study was to hydrolyzed cellulose nanocrystals as cellulose-based biomass residues from oil palm by using hydrochloric acid under hydrothermal conditions. The characterization of cellulose nanocrystals was determined by FT-IR spectroscopy and X- ray diffraction. The infrared spectroscopy showed there has been a removal of lignin and hemicellulose in the spectrum. Crystallinity which reaches 78.59% was obtained by hydrolysis using hydrochloric acid catalyst 3 mol/L with a reaction time of 1 hour. Based on the graph of -ln CA/CA0 vs. time obtained that Cellulose nanocrystals forming reaction is of first order. The reaction rate constants to the formation of glucose (k2) is greater than the reaction rate constant to the formation of Cellulose nanocrystals (k1), which indicates that the phase of slow reaction is the reaction of the most influential on the overall reaction rate, the reaction of the formation of Cellulose nanocrystals.</p> 2019-08-19T16:18:34+02:00 ##submission.copyrightStatement## https://www.pagepress.org/journals/index.php/pb/article/view/7443 Use of pulsed electric fields to induce breakage of glandular trichome cells in leaves of fresh patchouli (Pogostemon cablin Benth.): Specific energy input consumption 2019-08-25T10:35:12+02:00 Sukardi Sukardi capa.journal69@gmail.com Sudjito Soeparman soeparman.ss@yahoo.com Bambang Dwi Argo argo.bda@yahoo.com Yudy Surya Irawan irawan.ysi@yahoo.com <p>Research has been performed using a pulsed electric field (PEF) to damage plant cells to obtain bioactive compounds before extraction. However, research into the use of PEF to break down the glandular trichome (GT) cells of patchouli for essential oil extraction is still limited. The purpose of this study was to determine the specific energy input needed to break patchouli leaf GT cells by PEF treatment. Patchouli leaves were harvested at 7 months of age, then treated with PEF. GT cell changes were analyzed using scanning electron microscopy. The results show that treatment with variable frequencies caused GT cell wrinkling and treatments with a variable electric field caused GT cell rupture. Electric field treatment at E=133.33 V/cm and a PEF exposure time of 2 seconds or E=116.66 V/cm and 3 seconds of PEF exposure resulted in consistent rupture of GT cells. Energy consumption of 0.049 kJ/cm3 promoted GT cell wall shrinkage and consumption of 0.59 kJ/cm3 broke GT cell walls.</p> 2019-08-20T09:07:22+02:00 ##submission.copyrightStatement## https://www.pagepress.org/journals/index.php/pb/article/view/7459 Response of three waxy corn (Zea mays L. Var. Ceratina Kulesh) varieties and various planting date of intercropped groundnut (Arachis hypogaea L.) in dry field 2019-08-25T10:35:10+02:00 Kristono Y. Fowo capa.journal76@gmail.com Nur Edy Suminarti suminarti.nes@yahoo.com Agus Suryanto suryanto.as@yahoo.com <p>The research aims to determine the combination of waxy corn variety and planting date on the growth and yield of waxy corn in an intercropping system of corn and groundnut <em>(Arachis hypogaea</em> L.). The experimental design is a split-plot with the main plot consisting of waxy corn varieties (local variety; Uri variety and Binte Pulu variety and the sub-plot consisting of the alternate crop planting date. Three replications are performed. Data collection is done destructively. The F test at 5% is used to examine the effect of treatments, while differences across treatments are based on the LSD at 5%. Research results show an interaction between the waxy corn variety and planting date on the growth parameter. There is an improved yield from the local variety planted 15 days before the groundnut planting date, as well as from the Uri variety planted both simultaneously with, and also 15 days before, the groundnut planting date, with maximum yields of 2.99, 2.75 and 2.69 ton ha-ยน, respectively.</p> 2019-08-20T09:27:18+02:00 ##submission.copyrightStatement##