Faculty Opinions recommendation of Coexistence of perennial plants: an embarrassment of niches.

2010 ◽  
Author(s):  
Helene Muller-Landau ◽  
Noelle Beckman
Keyword(s):  
Perennial Plants

THE USE OF AREA-SPECIFIC PERENNIAL PLANTS IN A GREEN CONVEYOR SYSTEM IN THE CENTRAL YAKUTIA

2018 ◽  
Vol 314 (4) ◽  
pp. 44-46
Author(s):  
S.A. Pavlova ◽  
◽  
E.S. Pestereva ◽  
G.E. Zakharova ◽  
◽  
...  
Keyword(s):  
Conveyor System ◽  
Perennial Plants ◽  
Central Yakutia

Dynamic Comparison of the Fruit Sector and the Pollution Associated to Agriculture

2018 ◽  
Vol 69 (10) ◽  
pp. 2776-2780
Author(s):  
Valentina Constanta Tudor ◽  
Ionela Mituko Vlad ◽  
Diana Zamfir Vasca
Keyword(s):  
Agricultural Production ◽  
Descriptive Statistics ◽  
The Public ◽  
Perennial Plants ◽  
National Statistics ◽  
The Impact

Pollution in agriculture plays a major role. One of the sector affected by this phenomenon is the perennial plants, such as fruits sector. This sector is an important part of agricultural production in Romania, mainly because of the areas that have been dedicated; that is why the sector should be reconsidered because it could be one of the engines of the agriculture. This have to led to important efforts and increased attention in managing the opportunities offered by the development of the associations and producer groups involved. The present paper aims to address certain aspects of the national, macro-regional and European aspects of these fruits productions and the impact of the degree of pollution in agriculture. In this respect, data derived from the public databases dedicated to this field, namely Eurostat, the National Statistics Institute, DG Agriculture / FADN database and the Ministry of Agriculture, were used. The methods used to analyze and interpret the results are descriptive statistics, dynamics and comparisons between target areas and indicators. The results highlighted in the first part of the paper the Romania�s position upon the European average in what concern the fruit sector but also upon a competing country on the fruit market, Poland, which is considered to have a European top position.

scholarly journals New Strategies to Overcome Present CRISPR/Cas9 Limitations in Apple and Pear: Efficient Dechimerization and Base Editing

2020 ◽  
Vol 22 (1) ◽  
pp. 319
Author(s):  
Jaiana Malabarba ◽  
Elisabeth Chevreau ◽  
Nicolas Dousset ◽  
Florian Veillet ◽  
Julie Moizan ◽  
...  
Keyword(s):  
Target Genes ◽  
Cytidine Deaminase ◽  
Acetolactate Synthase ◽  
Nucleotide Substitutions ◽  
Discrete Variation ◽  
Adventitious Regeneration ◽  
Base Editing ◽  
Perennial Plants ◽  
Guide Rnas ◽  
Albino Phenotype

Despite recent progress, the application of CRISPR/Cas9 in perennial plants still has many obstacles to overcome. Our previous results with CRISPR/Cas9 in apple and pear indicated the frequent production of phenotypic and genotypic chimeras, after editing of the phytoene desaturase (PDS) gene conferring albino phenotype. Therefore, our first objective was to determine if adding an adventitious regeneration step from leaves of the primary transgenic plants (T0) would allow a reduction in chimerism. Among hundreds of adventitious buds regenerated from a variegated T0 line, 89% were homogeneous albino. Furthermore, the analysis of the target zone sequences of twelve of these regenerated lines (RT0 for “regenerated T0” lines) indicated that 99% of the RT0 alleles were predicted to produce a truncated target protein and that 67% of RT0 plants had less heterogeneous editing profiles than the T0. Base editors are CRISPR/Cas9-derived new genome-editing tools that allow precise nucleotide substitutions without double-stranded breaks. Hence, our second goal was to demonstrate the feasibility of CRISPR/Cas9 base editing in apple and pear using two easily scorable genes: acetolactate synthase—ALS (conferring resistance to chlorsulfuron) and PDS. The two guide RNAs under MdU3 and MdU6 promoters were coupled into a cytidine base editor harboring a cytidine deaminase fused to a nickase Cas9. Using this vector; we induced C-to-T DNA substitutions in the target genes; leading to discrete variation in the amino-acid sequence and generating new alleles. By co-editing ALS and PDS genes; we successfully obtained chlorsulfuron resistant and albino lines in pear. Overall; our work indicates that a regeneration step can efficiently reduce the initial chimerism and could be coupled with the application of base editing to create accurate genome edits in perennial plants.

scholarly journals Will the Use of Less Fecund Cultivars Reduce the Invasiveness of Perennial Plants?

BioScience ◽  
2011 ◽  
Vol 61 (10) ◽  
pp. 816-822 ◽  
Author(s):  
Tiffany M. Knight ◽  
Kayri Havens ◽  
Pati Vitt
Keyword(s):  
Perennial Plants

OrganoCat pretreatment of perennial plants: Synergies between a biogenic fractionation and valuable feedstocks

2017 ◽  
Vol 244 ◽  
pp. 889-896 ◽  
Author(s):  
Tatjana Damm ◽  
Philipp Michael Grande ◽  
Nicolai David Jablonowski ◽  
Björn Thiele ◽  
Ulrich Disko ◽  
...  
Keyword(s):  
Perennial Plants

Growth and reproduction of the red alga Rhodomela larix

1986 ◽  
Vol 64 (7) ◽  
pp. 1499-1506 ◽  
Author(s):  
Carla D'Antonio
Keyword(s):  
Life History ◽  
Red Alga ◽  
Oregon Coast ◽  
Perennial Plants ◽  
History Of ◽  
Lower Site ◽  
Intertidal Site ◽  
Observation Period ◽  
Growth And Reproduction

Components of the growth and life history of the red alga Rhodomela larix (Turner) C. Agardh were studied during an 18-month period at a high intertidal and a low intertidal site on the central Oregon coast. Growth was measured by following (i) individually marked upright axes, (ii) clumps of axes thought to represent individual plants, and (iii) large patches of R. larix. Variation in size and growth was common among axes, and portions of some axes were clearly perennial. Plants grew most rapidly in the spring and summer (up to 1.2 mm/day) with a large amount of variation occurring between and within zones and among seasons. Overall, plants at the higher site were shorter and had fewer branches during most of the year than plants at the lower site. Gametophytes were more common in the higher site, while tetrasporophytes predominated at both sites. Reproductive axes were present throughout the observation period, although little recruitment of sexual propagules was seen, implying that populations may be maintained by vegetative perennation of individual plants.

scholarly journals Common coypu predation on unionid mussels and terrestrial plants in an invaded Japanese river

2020 ◽  
pp. 37
Author(s):  
Shigeya Nagayama ◽  
Manabu Kume ◽  
Munehiro Oota ◽  
Koichiro Mizushima ◽  
Seiichi Mori
Keyword(s):  
Freshwater Ecosystems ◽  
Annual Plants ◽  
Terrestrial Plants ◽  
Myocastor Coypus ◽  
Future Studies ◽  
Perennial Plants ◽  
Unionid Mussels ◽  
Dna Metabarcoding ◽  
Population Structures ◽  
Selection Of

The coypu (Myocastor coypus) is a semi-aquatic herbivorous rodent that has been suspected to prey on freshwater unionid mussels in Japan. Fecal DNA metabarcoding that targeted bivalves and terrestrial plants was performed to examine the diet of exotic coypu in the Kiso River, central Japan. Thirty-two fecal samples from four floodplain waterbodies were collected seasonally. In one of the waterbodies, live and dead mussels were investigated to examine the possible effects of coypu predation on mussel population structures. Common coypu predation on unionid mussels was confirmed in two waterbodies. Midden surveys showed that medium- to large-sized mussels tended to be consumed by coypu; possibly resulting in population structures with few large-sized individuals. Seasonal diet selection of terrestrial plants was also detected: two perennial plants were consumed throughout the year, whereas some perennial plants were consumed seasonally. The number of terrestrial plant species/taxa as primary food was higher in summer than in winter, which was attributed to the high consumption of annual plants in the summer. Future studies need to examine the exhaustive diet of coypu including other animals and plants, as well as its effects on freshwater ecosystems in invaded regions.

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