keyword
https://read.qxmd.com/read/38507185/engineered-poplar-for-bioproduction-of-the-triterpene-squalene
#1
JOURNAL ARTICLE
Jacob D Bibik, Abira Sahu, Boeun Kim, Faride Unda, Trine B Andersen, Shawn D Mansfield, Christos T Maravelias, Thomas D Sharkey, Björn R Hamberger
Building sustainable platforms to produce biofuels and specialty chemicals has become an increasingly important strategy to supplement and replace fossil fuels and petrochemical-derived products. Terpenoids are the most diverse class of natural products that have many commercial roles as specialty chemicals. Poplar is a fast growing, biomassdense bioenergy crop with many species known to produce large amounts of the hemiterpene isoprene, suggesting an inherent capacity to produce significant quantities of other terpenes...
March 20, 2024: Plant Biotechnology Journal
https://read.qxmd.com/read/38507094/transcriptome-analysis-of-waterlogging-induced-adventitious-root-and-control-taproot-of-mentha-arvensis
#2
JOURNAL ARTICLE
Shikha, Durgesh Kumar Pandey, Swati Upadhyay, Ujjal J Phukan, Rakesh Kumar Shukla
The present study reports differentially expressed transcripts in the waterlogging-induced adventitious root (AR) of Mentha arvensis; the identified transcripts will help to understand AR development and improve waterlogging stress response. Waterlogging notably hampers plant growth in areas facing waterlogged soil conditions. In our previous findings, Mentha arvensis was shown to adapt better in waterlogging conditions by initiating the early onset of adventitious root development. In the present study, we compared the transcriptome analysis of adventitious root induced after the waterlogging treatment with the control taproot...
March 20, 2024: Plant Cell Reports
https://read.qxmd.com/read/38498414/deciphering-physio-biochemical-basis-of-tolerance-mechanism-for-sesame-sesamum-indicum-l-genotypes-under-waterlogging-stress-at-early-vegetative-stage
#3
JOURNAL ARTICLE
Vishal Chugh, Vigya Mishra, Vijay Sharma, Mukul Kumar, Mouna Ghorbel, Hitesh Kumar, Ashutosh Rai, Rahul Kumar
Waterlogging represents a substantial agricultural concern, inducing harmful impacts on crop development and productivity. In the present study, 142 diverse sesame genotypes were examined during the early vegetative phase to assess their response under waterlogging conditions. Based on the severity of symptoms observed, 2 genotypes were classified as highly tolerant, 66 as moderately tolerant, 69 as susceptible, and 5 as highly susceptible. Subsequent investigation focused on four genotypes, i.e., two highly tolerant (JLT-8 and GP-70) and two highly susceptible (R-III-F6 and EC-335003)...
February 10, 2024: Plants (Basel, Switzerland)
https://read.qxmd.com/read/38475584/ethylene-action-inhibition-improves-adventitious-root-induction-in-adult-chestnut-tissues
#4
JOURNAL ARTICLE
Ricardo Castro-Camba, Mariana Neves, Sandra Correia, Jorge Canhoto, Jesús M Vielba, Conchi Sánchez
Phase change refers to the process of maturation and transition from the juvenile to the adult stage. In response to this shift, certain species like chestnut lose the ability to form adventitious roots, thereby hindering the successful micropropagation of adult plants. While auxin is the main hormone involved in adventitious root formation, other hormones, such as ethylene, are also thought to play a role in its induction and development. In this study, experiments were carried out to determine the effects of ethylene on the induction and growth of adventitious roots...
March 6, 2024: Plants (Basel, Switzerland)
https://read.qxmd.com/read/38475452/transcriptome-wide-identification-and-integrated-analysis-of-a-ugt-gene-involved-in-ginsenoside-ro-biosynthesis-in-panax-ginseng
#5
JOURNAL ARTICLE
Xiaochen Yu, Jinghui Yu, Sizhang Liu, Mingming Liu, Kangyu Wang, Mingzhu Zhao, Yanfang Wang, Ping Chen, Jun Lei, Yi Wang, Meiping Zhang
Panax ginseng as a traditional medicinal plant with a long history of medicinal use. Ginsenoside Ro is the only oleanane-type ginsenoside in ginseng, and has various pharmacological activities, including anti-inflammatory, detoxification, and antithrombotic activities. UDP-dependent glycosyltransferase (UGT) plays a key role in the synthesis of ginsenoside, and the excavation of UGT genes involved in the biosynthesis of ginsenoside Ro has great significance in enriching ginsenoside genetic resources and further revealing the synthesis mechanism of ginsenoside...
February 23, 2024: Plants (Basel, Switzerland)
https://read.qxmd.com/read/38474653/comparison-of-flavonoid-content-antioxidant-potential-acetylcholinesterase-inhibition-activity-and-volatile-components-based-on-hs-spme-gc-ms-of-different-parts-from-matteuccia-struthiopteris-l-todaro
#6
JOURNAL ARTICLE
Xin Wang, Jiatao Guo, Siqi Zang, Baodong Liu, Yuhuan Wu
Matteuccia struthiopteris is one of the most globally consumed edible ferns and widely used in folk medicine. Reports mainly focus on young fronds and the rhizome which are common edible medicinal parts. However, there are few detailed reports on other parts. Therefore, the volatile components of different parts based on HS-SPME-GC-MS were identified, and total flavonoid contents, antioxidant activities and acetylcholinesterase inhibitory activities were compared in order to reveal the difference of volatile components and potential medicinal value of different parts...
March 4, 2024: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://read.qxmd.com/read/38459215/genes-involved-in-auxin-biosynthesis-transport-and-signalling-underlie-the-extreme-adventitious-root-phenotype-of-the-tomato-aer-mutant
#7
JOURNAL ARTICLE
Zoltan Kevei, Eduardo Larriba, María Dolores Romero-Bosquet, Miriam Nicolás-Albujer, Tomasz J Kurowski, Fady Mohareb, Daniel Rickett, José Manuel Pérez-Pérez, Andrew J Thompson
The use of tomato rootstocks has helped to alleviate the soaring abiotic stresses provoked by the adverse effects of climate change. Lateral and adventitious roots can improve topsoil exploration and nutrient uptake, shoot biomass and resulting overall yield. It is essential to understand the genetic basis of root structure development and how lateral and adventitious roots are produced. Existing mutant lines with specific root phenotypes are an excellent resource to analyse and comprehend the molecular basis of root developmental traits...
March 8, 2024: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://read.qxmd.com/read/38448365/exogenous-abscisic-acid-induces-the-formation-of-a-suberized-barrier-to-radial-oxygen-loss-in-adventitious-roots-of-barley-hordeum-vulgare
#8
JOURNAL ARTICLE
Katsuhiro Shiono, Haruka Matsuura
BACKGROUND AND AIMS: Internal root aeration is essential for root growth in waterlogged conditions. Aerenchyma provides a path for oxygen to diffuse to the roots. In most wetland species, including rice, a barrier to radial oxygen loss (ROL) allows more of the oxygen to diffuse to the root tip, enabling root growth into anoxic soil. Most dryland crops, including barley, do not form a root ROL barrier. We previously found that abscisic acid (ABA) signalling is involved in the induction of ROL barrier formation in rice during waterlogging...
March 6, 2024: Annals of Botany
https://read.qxmd.com/read/38442624/improvement-of-growth-and-biochemical-constituents-of-rosmarinus-officinalis-by-fermented-spirulina-maxima-biofertilizer
#9
JOURNAL ARTICLE
Heba S El-Sayed, Atiat Hassan, Khouloud M Barakat, Hasnaa E-B Ghonam
Delayed growth period and nature of woody stems are challenges for the urgent economic needs of rosemary plant culturing in the winter season. Different concentrations of biofertilizer initiated from Spirulina maxima, marine Lactobacillus plantarum, molasses and industrial organic waste (IOW) were subjected to freshly cut cuttings of the Rosmarinus officinalis L. (rosemary) plant to study the impact of this biofertilizer on the growth performance of the plant. The present work explored the potential of this biofertilizer in concentrations of 0...
February 28, 2024: Plant Physiology and Biochemistry: PPB
https://read.qxmd.com/read/38431568/nnarf17-and-nnarf18-from-lotus-promote-root-formation-and-modulate-stress-tolerance-in-transgenic-arabidopsis-thaliana
#10
JOURNAL ARTICLE
Cheng Libao, Liang Shiting, Zhao Chen, Li Shuyan
Auxin response factors (ARFs) play a crucial role in regulating gene expression within the auxin signal transduction pathway, particularly during adventitious root (AR) formation. In this investigation, we identified full-length sequences for ARF17 and ARF18, encompassing 1,800 and 2,055 bp, encoding 599 and 684 amino acid residues, respectively. Despite exhibiting low sequence homology, the ARF17- and ARF18-encoded proteins displayed significant structural similarity and shared identical motifs. Phylogenetic analysis revealed close relationships between NnARF17 and VvARF17, as well as NnARF18 and BvARF18...
March 2, 2024: BMC Plant Biology
https://read.qxmd.com/read/38397145/transcriptome-analysis-provides-insights-into-catalpol-biosynthesis-in-the-medicinal-plant-rehmannia-glutinosa-and-the-functional-characterization-of-rgges-genes
#11
JOURNAL ARTICLE
Yuanjun Li, Xiaoru Zhai, Ligang Ma, Le Zhao, Na An, Weisheng Feng, Longyu Huang, Xiaoke Zheng
Rehmannia glutinosa , a member of the Scrophulariaceae family, has been widely used in traditional Chinese medicine since ancient times. The main bioactive component of R. glutinosa is catalpol. However, the biogenesis of catalpol, especially its downstream pathway, remains unclear. To identify candidate genes involved in the biosynthesis of catalpol, transcriptomes were constructed from R. glutinosa using the young leaves of three cultivars, Beijing No. 3, Huaifeng, and Jin No. 9, as well as the tuberous roots and adventitious roots of the Jin No...
January 24, 2024: Genes
https://read.qxmd.com/read/38397108/molecular-mechanism-of-different-rooting-capacity-between-two-clones-of-taxodium-hybrid-zhongshanshan
#12
JOURNAL ARTICLE
Jiaqi Liu, Lei Xuan, Chaoguang Yu, Jianfeng Hua, Ziyang Wang, Yunlong Yin, Zhiquan Wang
The conifer Taxodium hybrid 'Zhongshanshan' ( T. hybrid 'Zhongshanshan') is characterized by rapid growth, strong stress resistance, and high ornamental value and has significant potential for use in afforestation, landscaping, and wood production. The main method of propagating T. hybrid 'Zhongshanshan' is tender branch cutting, but the cutting rooting abilities of different T. hybrid 'Zhongshanshan' clones differ significantly. To explore the causes of rooting ability differences at a molecular level, we analyzed the transcriptome data of cutting base and root tissues of T...
February 19, 2024: International Journal of Molecular Sciences
https://read.qxmd.com/read/38396652/do-deeper-rooting-1-homologs-regulate-the-lateral-root-slope-angle-in-cucumber-cucumis-sativus
#13
JOURNAL ARTICLE
Alexey S Kiryushkin, Elena L Ilina, Tatyana Y Kiikova, Katharina Pawlowski, Kirill N Demchenko
The architecture of the root system is fundamental to plant productivity. The rate of root growth, the density of lateral roots, and the spatial structure of lateral and adventitious roots determine the developmental plasticity of the root system in response to changes in environmental conditions. One of the genes involved in the regulation of the slope angle of lateral roots is DEEPER ROOTING 1 ( DRO1 ). Its orthologs and paralogs have been identified in rice, Arabidopsis, and several other species. However, nothing is known about the formation of the slope angle of lateral roots in species with the initiation of lateral root primordia within the parental root meristem...
February 6, 2024: International Journal of Molecular Sciences
https://read.qxmd.com/read/38366280/suberin-deficiency-and-its-effect-on-the-transport-physiology-of-young-poplar-roots
#14
JOURNAL ARTICLE
Paul Grünhofer, Ines Heimerich, Svenja Pohl, Marlene Oertel, Hongjun Meng, Lin Zi, Kevin Lucignano, Syed Nadeem Hussain Bokhari, Yayu Guo, Ruili Li, Jinxing Lin, Matthias Fladung, Tino Kreszies, Tyll Stöcker, Heiko Schoof, Lukas Schreiber
The precise functions of suberized apoplastic barriers in root water and nutrient transport physiology have not fully been elucidated. While lots of research has been performed with mutants of Arabidopsis, little to no data are available for mutants of agricultural crop or tree species. By employing a combined set of physiological, histochemical, analytical, and transport physiological methods as well as RNA-sequencing, this study investigated the implications of remarkable CRISPR/Cas9-induced suberization defects in young roots of the economically important gray poplar...
February 16, 2024: New Phytologist
https://read.qxmd.com/read/38364869/temperature-sensitive-splicing-defects-in-arabidopsis-mitochondria-caused-by-mutations-in-the-root-primordium-defective-1-gene
#15
JOURNAL ARTICLE
Chuande Wang, Martine Quadrado, Hakim Mireau
Group II introns in plant organelles have lost splicing autonomy and require the assistance of nuclear-encoded trans-factors whose roles remain to be elucidated. These factors can be mono- or poly-specific with respect to the number of introns whose splicing they facilitate. Poly-acting splicing factors are often essential and their genetic identification may benefit from the use of conditional mutations. Temperature-sensitive (TS) mutations in the ROOT PRIMORDIUM DEFECTIVE 1 (RPD1) gene were initially selected for their inhibitory effect on root formation in Arabidopsis...
February 14, 2024: Nucleic Acids Research
https://read.qxmd.com/read/38343981/melatonin-induced-stress-enhanced-biomass-and-production-of-high-value-secondary-cell-products-in-submerged-adventitious-root-cultures-of-stevia-rebaudiana-bert
#16
JOURNAL ARTICLE
Bakht Naz, Aftab Afzal, Hina Ali, Nisar Ahmad, Hina Fazal, Riaz Ullah, Essam A Ali, Mohammad Ali, Zahid Ullah, Ahmad Ali, Shazia Dilbar
Stress is one of the important factors that directly or indirectly affects the plant architecture, biochemical pathways, and growth and development. Melatonin (MEL) is an important stress hormone; however, the exogenous addition of melatonin to culture media stimulates the defense mechanism and releases higher quantities of secondary metabolites. In this study, submerged adventitious root cultures (SARCs) of diabetically important Stevia rebaudiana were exposed to variable concentrations (0.5-5.0 mg/L) of MEL in combination with 0...
February 6, 2024: ACS Omega
https://read.qxmd.com/read/38337954/rna-sequencing-analysis-and-verification-of-paeonia-ostii-fengdan-cuzn-superoxide-dismutase-posod-genes-in-root-development
#17
JOURNAL ARTICLE
Jiange Wang, Yinglong Song, Zheng Wang, Liyun Shi, Shuiyan Yu, Yufeng Xu, Guiqing Wang, Dan He, Liwei Jiang, Wenqian Shang, Songlin He
Tree peony ( Paeonia suffruticosa ) is a significant medicinal plant. However, the low rooting number is a bottleneck problem in the micropropagation protocols of P. ostii 'Fengdan'. The activity of superoxide dismutase (SOD) is closely related to root development. But research on the SOD gene's impact on rooting is still lacking. In this study, RNA sequencing (RNA-seq) was used to analyze the four crucial stages of root development in P. ostii 'Fengdan' seedlings, including the early root primordium formation stage (Gmfq), root primordium formation stage (Gmf), root protrusion stage (Gtq), and root outgrowth stage (Gzc)...
January 31, 2024: Plants (Basel, Switzerland)
https://read.qxmd.com/read/38337727/comparative-assessment-of-in-vitro-xanthine-oxidase-and-%C3%AE-glucosidase-inhibitory-activities-of-cultured-cambial-meristematic-cells-adventitious-roots-and-field-cultivated-ginseng
#18
JOURNAL ARTICLE
Tianhe Zhang, Lijun Liu, Qiqi Chen, Yifei Wang, Xiujun Gao, Xingyi Ma, Peisheng Yan
Panax ginseng , a traditional Chinese medicine with a history spanning thousands of years, faces overexploitation and challenges related to extended growth periods. Tissue-cultured adventitious roots and stem cells are alternatives to wild and field-cultivated ginseng. In this study, we assessed the in vitro xanthine oxidase and α-glucosidase inhibitory activities of saponin extracts among cultured cambial meristematic cells (CMC), adventitious ginseng roots (AGR), and field-cultivated ginseng roots (CGR)...
February 2, 2024: Nutrients
https://read.qxmd.com/read/38332379/temporal-profiling-of-physiological-histological-and-transcriptomic-dissection-during-auxin-induced-adventitious-root-formation-in-tetraploid-robinia-pseudoacacia-micro-cuttings
#19
JOURNAL ARTICLE
Saleem Uddin, Muhammad Zeeshan Munir, Eduardo Larriba, José Manuel Pérez-Pérez, Sadia Gull, Tariq Pervaiz, Umer Mahmood, Zahid Mahmood, Yuhan Sun, Yun Li
Optimal levels of indole-3-butyric acid (IBA) applied at the stem base promote adventitious root (AR) initiation and primordia formation, thus promoting the rooting of leafy micro-cuttings of tetraploid Robinia pseudoacacia. Tetraploid Robinia pseudoacacia L. is a widely cultivated tree in most regions of China that has a hard-rooting capability, propagated by stem cuttings. This study utilizes histological, physiological, and transcriptomic approaches to explore how root primordia are induced after indole butyric acid (IBA) treatment of micro-cuttings...
February 8, 2024: Planta
https://read.qxmd.com/read/38332111/3-4-dichlorophenylacetic-acid-acts-as-an-auxin-analog-and-induces-beneficial-effects-in-various-crops
#20
JOURNAL ARTICLE
Chao Tan, Suxin Li, Jia Song, Xianfu Zheng, Hao Zheng, Weichang Xu, Cui Wan, Tan Zhang, Qiang Bian, Shuzhen Men
Auxins and their analogs are widely used to promote root growth, flower and fruit development, and yield in crops. The action characteristics and application scope of various auxins are different. To overcome the limitations of existing auxins, expand the scope of applications, and reduce side effects, it is necessary to screen new auxin analogs. Here, we identified 3,4-dichlorophenylacetic acid (Dcaa) as having auxin-like activity and acting through the auxin signaling pathway in plants. At the physiological level, Dcaa promotes the elongation of oat coleoptile segments, the generation of adventitious roots, and the growth of crop roots...
February 8, 2024: Communications Biology
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