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1. Nanomaterials and plants: Positive effects, toxicity and the remediation of metal and metalloid pollution in soil

Author:
Zhu, Yi; Xu, Fang; Liu, Qin; Chen, Ming; Liu, Xianli; Wang, Yanyan; Sun, Yan; Zhang, Lili
Source:
The Science of the total environment 2019 v.662 pp. 414-421
ISSN:
0048-9697
Subject:
germination,   etc   ; metalloids; metals; nanomaterials; phytoremediation; researchers; soil; soil pollution; toxicity;     Show all 9 Subjects
Abstract:
... Currently, the pollution of metals and metalloids in the soil has attracted considerable attention. Phytoremediation is considered an environmentally friendly means of remediating pollution, but often takes a long time to perform. Therefore, the combination of plants and nanomaterials in environmental management has attracted the attention of many researchers because some nanomaterials can promote ...
DOI:
10.1016/j.scitotenv.2019.01.234

2. A discrete element model of seed-soil dynamics in soybean emergence

Author:
Gong, Hao; Zeng, Zhiwei; Qi, Long
Source:
Plant and soil 2019 v.437 no.1-2 pp. 439-454
ISSN:
0032-079X
Subject:
germination,   etc   ; cotyledons; kinetic energy; planting; seedbeds; simulation models; soil; soybeans;     Show all 8 Subjects
Abstract:
... AIMS: Understanding seed-soil dynamics is important for improving plant emergence and growth. The objectives of this study were to develop a Seed-Soil model to simulate the dynamic process of seed expansion in soil, and a Cotyledon-Soil model to simulate the dynamic process of cotyledon movement in soil. METHODS: To obtain model inputs, a soybean emergence experiment was conducted to measure the e ...
DOI:
10.1007/s11104-019-04007-y

3. A review of the relationship between primary and secondary dormancy, with reference to the volunteer crop weed oilseed rape (Brassica napus)

Author:
Soltani, E; Baskin, J M; Baskin, C C
Source:
Weed research 2019 v.59 no.1 pp. 5-14
ISSN:
0043-1737
Subject:
germination,   etc   ; Brassica napus; crops; dormancy; seeds; soil; volunteer plants; weeds;     Show all 8 Subjects
Abstract:
... Fresh seeds of oilseed rape (Brassica napus) are reported to be nondormant and nonphotoblastic. However, a portion of the seeds can be induced into a light‐requiring state (secondary dormancy) for germination and also exhibit dormancy cycling. Thus, if seeds become buried in the soil they can form a persistent seedbank and become a serious volunteer weed in succeeding crops. The capacity of nondor ...
DOI:
10.1111/wre.12342

4. Observations on research with spores of Bacillales and Clostridiales species

Author:
Setlow, Peter
Source:
Journal of applied microbiology 2019 v.126 no.2 pp. 348-358
ISSN:
1364-5072
Subject:
germination,   etc   ; Bacillales; Clostridiales; bacteria; bacterial spores; disinfection; neutralization;     Show all 7 Subjects
Abstract:
... The purpose of this article is to highlight some areas of research with spores of bacteria of Firmicute species in which the methodology too commonly used is not optimal and generates misleading results. As a consequence, conclusions drawn from data obtained are often flawed or not appropriate. Topics covered in the article include the following: (i) the importance of using well‐purified bacterial ...
DOI:
10.1111/jam.14067

5. A Regulatory Module Controlling GA-Mediated Endosperm Cell Expansion Is Critical for Seed Germination in Arabidopsis

Author:
Sánchez-Montesino, Rocío; Bouza-Morcillo, Laura; Marquez, Julietta; Ghita, Melania; Duran-Nebreda, Salva; Gómez, Luis; Holdsworth, Michael J.; Bassel, George; Oñate-Sánchez, Luis
Source:
Molecular plant 2019 v.12 no.1 pp. 71-85
ISSN:
1674-2052
Subject:
seed germination,   etc   ; Arabidopsis thaliana; endosperm; forces; seeds; transcription factors;     Show all 6 Subjects
Abstract:
... A key component of seed germination is the interplay of mechanical forces governing embryo growth and the surrounding restraining endosperm tissue. Endosperm cell separation is therefore thought to play a critical role in the control of this developmental transition. Here we demonstrate that in Arabidopsis thaliana seeds, endosperm cell expansion is a key component of germination. Endosperm cells ...
DOI:
10.1016/j.molp.2018.10.009

6. Melatonin: A New Plant Hormone and/or a Plant Master Regulator?

Author:
Arnao, Marino B.; Hernández-Ruiz, Josefa
Source:
Trends in plant science 2019 v.24 no.1 pp. 38-48
ISSN:
1360-1385
Subject:
seed germination,   etc   ; antioxidants; free radicals; melatonin; photosynthesis; plant hormones; rooting;     Show all 7 Subjects
Abstract:
... Melatonin is a pleiotropic molecule with many diverse actions in plants. It is considered primarily an antioxidant with important actions in the control of reactive oxygen and nitrogen species (ROS and RNS), among other free radicals, and harmful oxidative molecules present in plant cells. In addition, plant melatonin is involved in multiple physiological actions, such as growth, rooting, seed ger ...
DOI:
10.1016/j.tplants.2018.10.010

7. Mechanism of inactivation of Bacillus subtilis spores by high pressure CO2 at high temperature

Author:
Rao, Lei; Zhao, Liang; Wang, Yongtao; Chen, Fang; Hu, Xiaosong; Setlow, Peter; Liao, Xiaojun
Source:
Food microbiology 2019 v.82 pp. 36-45
ISSN:
0740-0020
Subject:
germination,   etc   ; Bacillus subtilis; carbon dioxide; fluorescence; mutagenesis; mutants; propidium; spores; temperature; valine; viability;     Show all 11 Subjects
Abstract:
... Spores of wild-type Bacillus subtilis and some isogenic mutant strains were treated by high pressure CO2 (HPCD) at high temperature (HT) (HPCD + HT) at 20 MPa and 84-86 °C for 0–60 min, and centrifuged on a high density solution to obtain pelleted spores that retained CaDPA and light spores that lost CaDPA. All treated spores were analyzed for viability, and tested for germination, outgrowth, core ...
DOI:
10.1016/j.fm.2019.01.014

8. Cold plasma treatment to improve germination and enhance the bioactive phytochemical content of germinated brown rice

Author:
Yodpitak, Sittidet; Mahatheeranont, Sugunya; Boonyawan, Dheerawan; Sookwong, Phumon; Roytrakul, Sittiruk; Norkaew, Orranuch
Source:
Food chemistry 2019 v.289 pp. 328-339
ISSN:
0308-8146
Subject:
germination,   etc   ; anthocyanins; antioxidant activity; brown rice; cold; cultivars; oryzanol; phenolic compounds; phytosterols; seedlings; triterpenoids; vitamin E;     Show all 12 Subjects
Abstract:
... The changes in the bioactive phytochemicals of six cultivars of Thai germinated brown rice (GBR) were monitored in parallel to those of cold plasma-treated GBR (PGBR). After treatment with the optimal plasma conditions, the germination percentage, root length, and seedling height measurements of the most sensitive rice cultivar increased by 84%, 57%, and 69%, respectively. For all of the rice cult ...
DOI:
10.1016/j.foodchem.2019.03.061

9. How significant are endophytic fungi in bromeliad seeds and seedlings? Effects on germination, survival and performance of two epiphytic plant species

Author:
Leroy, Céline; Maes, Arthur QuyManh; Louisanna, Eliane; Séjalon-Delmas, Nathalie
Source:
Fungal ecology 2019 v.39 pp. 296-306
ISSN:
1754-5048
Subject:
seed germination,   etc   ; Aechmea; endophytes; epiphytes; fungal communities; fungi; roots; seedling growth; seedlings; seeds;     Show all 10 Subjects
Abstract:
... In bromeliads, nothing is known about the associations fungi form with seeds and seedling roots. We investigated whether fungal associations occur in the seeds and seedling roots of two epiphytic Aechmea species, and we explored whether substrate and fungal associations contribute to seed germination, and seedling survival and performance after the first month of growth. We found a total of 21 gen ...
DOI:
10.1016/j.funeco.2019.01.004

10. Scenarios for the management of invasive Acacia species in a protected area: Implications of clearing efficacy

Author:
Cheney, Chad; Esler, Karen J.; Foxcroft, Llewellyn C.; van Wilgen, Nicola J.
Source:
Journal of environmental management 2019 v.238 pp. 274-282
ISSN:
0301-4797
Subject:
seed germination,   etc   ; Acacia; conservation areas; data collection; introduced species; models; national parks; South Africa;     Show all 8 Subjects
Abstract:
... In many protected areas in South Africa, invasive Australian Acacia species pose on-going management challenges, perpetuating high long-term management costs. Due to limited availability of resources, conservation actions need to be prioritised within and across Protected Areas (PA). We draw on comprehensive datasets spanning over 20 years from the Table Mountain National Park to model long-term o ...
DOI:
10.1016/j.jenvman.2019.02.112

11. The detoxification effect of liquid digestate on vanadium toxicity to seed germination and seedling growth of dog’s tail grass

Author:
Aihemaiti, Aikelaimu; Jiang, Jianguo; Blaney, Lee; Zou, Quan; Gao, Yuchen; Meng, Yuan; Yang, Meng; Xu, Yiwen
Source:
Journal of hazardous materials 2019 v.369 pp. 456-464
ISSN:
0304-3894
Subject:
seed germination,   etc   ; Setaria viridis; antioxidants; grasses; liquids; malondialdehyde; nutrients; plant nutrition; seedlings; soil solution; toxicity; vanadium;     Show all 12 Subjects
Abstract:
... Dog’s tail grass (Setaria viridis) presented strong tolerance and high accumulation of vanadium in field conditions. Liquid digestate containing high levels of nutrients could alleviate vanadium toxicity and accelerate the growth of dog’s tail grass. To elucidate the detoxification potential and mechanism of liquid digestate, dog’s tail grass was grown in soil solution containing 0.14–55.8 mg L-1 ...
DOI:
10.1016/j.jhazmat.2019.01.091

12. Influence of weft yarn diameter on runoff erosion control performance of woven geomesh

Author:
Suresh Kumar, S.; Midha, Vinay Kumar
Source:
Journal of natural fibers 2019 v.16 no.3 pp. 427-441
ISSN:
1544-046X
Subject:
germination,   etc   ; coir; erosion control; jute; roots; seeds; soil; vegetation; water erosion; wheat; yarns;     Show all 11 Subjects
Abstract:
... The performance of geomeshes used in runoff erosion control application is expected to improve as weft yarn diameter increases. In this study coir and jute geomeshes with different weft yarn diameter are subjected to runoff erosion tests in zero infiltration and soil infiltration conditions (i.e. without and with soil), at three different slope angles of 15°, 30º and 45°. Germination test is perfo ...
DOI:
10.1080/15440478.2017.1423262

13. In vitro growth of Physalis peruviana L. affected by silver nanoparticles

Author:
Timoteo, Caroline de Oliveira; Paiva, Renato; dos Reis, Michele Valquíria; Claro, Pedro Ivo Cunha; Ferraz, Luthiane Machado; Marconcini, Jose Manoel; de Oliveira, Juliano Elvis
Source:
3 Biotech 2019 v.9 no.4 pp. 145
ISSN:
2190-572X
Subject:
germination,   etc   ; Physalis peruviana; antioxidants; biomass; in vitro culture; metabolism; nanoparticles; nanosilver; phytotoxicity; root systems; seedlings; seeds;     Show all 12 Subjects
Abstract:
... The effect of silver nanoparticles (AgNPs) on plant cells, since their phytotoxicity potential is not yet fully understood. In this context, the aim of the present study was to elucidate the effects of AgNPs in the in vitro culture of Physalis peruviana. For this purpose, P. peruviana seeds were grown in MS medium supplemented with different concentrations of AgNPs. Growth and development of seedl ...
DOI:
10.1007/s13205-019-1674-z

14. RGL2 controls flower development, ovule number and fertility in Arabidopsis

Author:
Gómez, María Dolores; Fuster-Almunia, Clara; Ocaña-Cuesta, Javier; Alonso, Jose M; Pérez-Amador, Miguel A.
Source:
Plant science 2019 v.281 pp. 82-92
ISSN:
0168-9452
Subject:
seed germination,   etc   ; Arabidopsis; dehiscence; flowering; genes; genetic engineering; genetically modified organisms; genomics; gibberellins; ovules; transcription factors;     Show all 11 Subjects
Abstract:
... DELLA proteins are a group of plant specific GRAS proteins of transcriptional regulators that have a key role in gibberellin (GA) signaling. In Arabidopsis, the DELLA family is formed by five members. The complexity of this gene family raises the question on whether single DELLA proteins have specific or overlapping functions in the control of several GA-dependent developmental processes. To bette ...
DOI:
10.1016/j.plantsci.2019.01.014

15. Effects of aeration rates on the structural changes in humic substance during co-composting of digestates and chicken manure

Author:
Wu, Junqiu; Zhao, Yue; Yu, Huimin; Wei, Dan; Yang, Tianxue; Wei, Zimin; Lu, Qian; Zhang, Xu
Source:
The Science of the total environment 2019 v.658 pp. 510-520
ISSN:
0048-9697
Subject:
germination,   etc   ; aeration; composting; factor analysis; humic substances; humidity; pathogens; poultry manure; wavelengths;     Show all 9 Subjects
Abstract:
... High humidity and potential threat of pathogen of anaerobic digestates are unfavorable to the environment by direct utilization. To achieve the sustainable utilization of digestates, composting might be a good choice. Meanwhile, the aeration rate of composting has been optimized. Co-composting of digestates and chicken manure was performed under different aeration conditions (0.05, 0.1 and 0.15 L· ...
DOI:
10.1016/j.scitotenv.2018.12.198

16. Terbium chloride influences Clostridium difficile spore germination

Author:
Shrestha, Ritu; Sorg, Joseph A.
Source:
Anaerobe 2019
ISSN:
1075-9964
Subject:
spore germination,   etc   ; Clostridium difficile; calcium; endospore forming bacteria; fluorescence; peptones; spores; terbium;     Show all 8 Subjects
Abstract:
... The germination of Clostridium difficile spores is an important stage of the C. difficile life cycle. In other endospore-forming bacteria, the composition of the medium in which the spores are generated influences the abundance of germination-specific proteins, thereby influencing the sensitivity of the spores towards germinants. In C. difficile media composition on the spores has only been report ...
DOI:
10.1016/j.anaerobe.2019.03.016

17. Performance of mature compost to control gaseous emissions in kitchen waste composting

Author:
Yang, Fan; Li, Yun; Han, Yuhua; Qian, Wentao; Li, Guoxue; Luo, Wenhai
Source:
The Science of the total environment 2019 v.657 pp. 262-269
ISSN:
0048-9697
Subject:
germination,   etc   ; ammonia; composting; corn stover; greenhouse gas emissions; kitchen waste; methane; mixing; nitrogen; nutrient content;     Show all 10 Subjects
Abstract:
... This study investigated the performance of mature compost to mitigate gaseous emissions during kitchen waste composting. Cornstalk was mixed with kitchen waste at a ratio of 3:17 (wet weight) as the bulking agent. Mature compost (10% of raw composting materials on the wet weight basis) was mixed into or covered on the composting pile. A control treatment without any addition of mature compost was ...
DOI:
10.1016/j.scitotenv.2018.12.030

18. Diversity and extent of mutations endowing resistance to the acetolactate synthase (AHAS)-inhibiting herbicides in Indian hedge mustard (Sisymbrium orientale) populations in Australia

Author:
Long, Weihua; Malone, Jenna; Boutsalis, Peter; Preston, Christopher
Source:
Pesticide biochemistry and physiology 2019
ISSN:
0048-3575
Subject:
germination,   etc   ; Sisymbrium officinale; Sisymbrium orientale; acetolactate synthase; amino acids; broadleaf weeds; herbicides; mutation; sequence analysis; Australia;     Show all 10 Subjects
Abstract:
... Indian hedge mustard (Sisymbrium orientale) (IHM) is an important broadleaf weed across southern Australia. Resistance to sulfonylurea (SU) herbicides that inhibit acetohydroxyacid synthase (AHAS) is extensive in Australia, but resistance to imidazolinone (IMI) herbicides has only been reported recently. The AHAS-mutation profile of 65 IHM populations collected randomly from cropped fields was inv ...
DOI:
10.1016/j.pestbp.2019.03.004

19. Influence of die-back syndrome on reproductive strategies within Phragmites australis populations

Author:
Cerri, Martina; Ferranti, Francesco; Coppi, Andrea; Foggi, Bruno; Gigante, Daniela; Lastrucci, Lorenzo; Onofri, Andrea; Venanzoni, Roberto; Viciani, Daniele; Reale, Lara
Source:
Plant biosystems 2019 v.153 no.2 pp. 250-256
ISSN:
1724-5575
Subject:
seed germination,   etc   ; Phragmites australis; dieback; energy; genetic variation; inflorescences; plant reproduction; sexual reproduction; viability; wetlands; Europe;     Show all 11 Subjects
Abstract:
... Sexual plant reproduction is a strategy that allows plant populations to increase genetic variability, and consequently to be more efficient in adapting to new environments and to overcome stress conditions. Here, we focus on the reproductive mode of Phragmites australis, an important sub-cosmopolite species that can spread both by clonal propagation and sexual reproduction. In Europe, P. australi ...
DOI:
10.1080/11263504.2018.1473302

20. A research agenda for seed‐trait functional ecology

Author:
Saatkamp, Arne; Cochrane, Anne; Commander, Lucy; Guja, Lydia K. ; Jimenez‐Alfaro, Borja; Larson, Julie; Nicotra, Adrienne ; Poschlod, Peter; Silveira, Fernando A. O.; Cross, Adam T.; Dalziell, Emma L.; Dickie, John; Erickson, Todd E.; Fidelis, Alessandra; Fuchs, Anne; Golos, Peter J.; Hope, Michael; Lewandrowski, Wolfgang; Merritt, David J.; Miller, Ben P.; Miller, Russell G. ; Offord, Catherine A.; Ooi, Mark K. J.; Satyanti, Annisa ; Sommerville, Karen D.; Tangney, Ryan; Tomlinson, Sean ; Turner, Shane; Walck, Jeffrey L.
Source:
Thenew phytologist 2019 v.221 no.4 pp. 1764-1775
ISSN:
0028-646X
Subject:
germination,   etc   ; applied ecology; databases; evolution; life history; niches; plant establishment; population dynamics; seed weight;     Show all 9 Subjects
Abstract:
... Trait‐based approaches have improved our understanding of plant evolution, community assembly and ecosystem functioning. A major challenge for the upcoming decades is to understand the functions and evolution of early life‐history traits, across levels of organization and ecological strategies. Although a variety of seed traits are critical for dispersal, persistence, germination timing and seedli ...
DOI:
10.1111/nph.15502