Insects on urban plants: contrasting the flower head feeding assemblages on native and exotic hosts

2011 ◽  
Vol 14 (4) ◽  
pp. 711-722 ◽  
Author(s):  
Paula Perre ◽  
Rafael D. Loyola ◽  
Thomas M. Lewinsohn ◽  
Mário Almeida-Neto
Keyword(s):  
Flower Head ◽  
Urban Plants ◽  
Feeding Assemblages

scholarly journals The Influence of Flower Head Order and Gibberellic Acid Treatment on the Hydroxycinnamic Acid and Luteolin Derivatives Content in Globe Artichoke Cultivars

Foods ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1813
Author(s):  
María José Giménez ◽  
Marina Giménez-Berenguer ◽  
María Emma García-Pastor ◽  
Joaquín Parra ◽  
Pedro Javier Zapata ◽  
...  
Keyword(s):  
Gibberellic Acid ◽  
Acid Content ◽  
Acid Treatment ◽  
Bioactive Compound ◽  
Hydroxycinnamic Acid ◽  
Flower Head ◽  
Globe Artichoke ◽  
Rp Hplc ◽  
Head Weight ◽  
Gibberellic Acid Treatment

Flower head orders and the use of GA3 (gibberellic acid) treatment could be two influencing factors determining the bioactive compound levels in artichoke, but little to no information is available about their effects. In this study, we have therefore evaluated the influence of these factors on the hydroxycinnamic acid and luteolin derivative levels in three categories of artichoke: Seed-propagated open-pollinated cultivars; vegetatively propagated cultivars; and seed-propagated hybrids. The hydroxycinnamic acids and luteolin derivatives were quantified by RP-HPLC-DAD. The average flower head weight was the lowest in tertiary heads and GA3-treated artichokes, followed by secondary and main heads. Moreover, the hydroxycinnamic acid and luteolin derivatives levels were significantly higher in tertiary heads than in secondary or main heads. In addition, the GA3 treatment significantly reduced the hydroxycinnamic acid content and, in contrast, improved luteolin derivatives levels. These effects depended on the flower head order and cultivar. Knowledge of the effects of flower head order and GA3 treatment is therefore key in order to achieve the greatest health-benefits from artichoke consumption.

Isolation and quantification of antimalarial N -alkylamides from flower-head derived in vitro callus cultures of Spilanthes paniculata

2017 ◽  
Vol 124 (1) ◽  
pp. 99-107 ◽  
Author(s):  
Radhika Rajendran ◽  
Balaji Sitthu Narashimman ◽  
Vishal Trivedi ◽  
Rakhi Chaturvedi
Keyword(s):  
Callus Cultures ◽  
Flower Head

Functional composition, but not richness, affected the performance of sessile suspension-feeding assemblages

2009 ◽  
Vol 61 (4) ◽  
pp. 216-221 ◽  
Author(s):  
Nelson Valdivia ◽  
Kate L. de la Haye ◽  
Stuart R. Jenkins ◽  
Susan A. Kimmance ◽  
Richard C. Thompson ◽  
...  
Keyword(s):  
Suspension Feeding ◽  
Functional Composition ◽  
Feeding Assemblages

Host-Plant Specialization Mediates the Influence of Plant Abundance on Host Use by Flower Head-Feeding Insects

2015 ◽  
Vol 45 (1) ◽  
pp. 171-177 ◽  
Author(s):  
Paola A. F. Nobre ◽  
Leonardo L. Bergamini ◽  
Thomas M. Lewinsohn ◽  
Leonardo R. Jorge ◽  
Mário Almeida-Neto
Keyword(s):  
Host Plant ◽  
Flower Head ◽  
Host Use ◽  
Plant Abundance ◽  
Host Plant Specialization

scholarly journals Body size and clonality consequences for sexual reproduction in a perennial herb of Brazilian rupestrian grasslands

2014 ◽  
Vol 74 (3) ◽  
pp. 744-749 ◽  
Author(s):  
GR Demetrio ◽  
FF Coelho ◽  
MEA Barbosa
Keyword(s):  
Body Size ◽  
Sexual Reproduction ◽  
Life Histories ◽  
Linear Regression Analysis ◽  
Clonal Plants ◽  
Flower Head ◽  
Perennial Herb ◽  
Stressful Environments ◽  
Herbaceous Perennial ◽  
Biology Research

Body size is one of the most important factors regarding herbaceous perennial plants life-histories, and several fitness components of these organisms are related to size. Clonal plants show distinct kinds of reproduction and can develop offspring by sexual or asexual ways. We aimed to understand how body size affects Comanthera nivea (Eriocaulaceae) sexual reproduction and to verify how clonal growth is related to flower head production in this species. We sampled 600 rosettes in rupestrian grasslands and performed linear regression analysis between body size and number of produced flower heads. We also compared the flower head production between isolated rosettes and rosettes within clones. Our results showed that body size was significantly related, but explained only a small part of flower head production. The flower head production was higher in rosettes within clones than in isolated ones. The clones presented a rosette or a small group of rosettes that concentrated the sexual reproduction. Clonality was positively associated with sexual reproduction. Clonality can represent an important way of allowing the persistence of plants by sexual reproduction in markedly seasonal stressful environments. The cases of clonality enhancing the sexual reproduction must be considered and put in focus on reproductive biology research.

Urban Plants as Genetic Reservoirs or Threats to the Integrity of Bushland Plant Populations

2007 ◽  
Vol 21 (3) ◽  
pp. 842-852 ◽  
Author(s):  
DAVID G. ROBERTS ◽  
DAVID J. AYRE ◽  
ROBERT J. WHELAN
Keyword(s):  
Plant Populations ◽  
Urban Plants

scholarly journals Effect of planting dates on the yield of broccoli genotypes

2015 ◽  
Vol 40 (3) ◽  
pp. 465-478
Author(s):  
MA Hafiz ◽  
A Biswas ◽  
M Zakaria ◽  
J Hassan ◽  
NA Ivy
Keyword(s):  
Plant Height ◽  
Total Yield ◽  
Planting Date ◽  
Flower Head ◽  
Planting Dates ◽  
Head Diameter ◽  
Head Weight ◽  
Average Plant ◽  
Early Flower ◽  
Average Plant Height

This experiment was conducted during September, 2011 to March, 2012 in the experimental field of Department of Horticulture, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur to find out the effect of planting date on the yield of broccoli genotypes. There were five genotypes viz. Early green, Forest green, Green calabrese, Premium crop and Green king and four planting dates viz. 2 October, 27 October, 21 November and 16 December. The treatment effects were statistically analyzed and found significant in most of the characters studied. Genotype Green calabrese was the highest in average plant height (53.70 cm). Green king produced the maximum spread diameter (69.23 cm), stem diameter (30.35 mm) and early initiation of floral head. Genotype Early green performed the best regarding head weight (343.87 g), yield per plant (477.4 g) and yield (19.10 t/ha). Broccoli planted on 21 November initiated early flower head, maximum head diameter (16.99 cm), head weight (314.49 g), yield per plant (453.64 g) and total yield (18.15 t/ha). The genotype Early green planted on 21 November showed the best performance in yield per plant (580.17 g) and yield hectare (23.21 t/ha).Bangladesh J. Agril. Res. 40(3): 465-478, September 2015

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