Morphology and monoterpene biosynthetic capabilities of secretory cell clusters isolated from glandular trichomes of peppermint (Mentha piperita L.)

Planta ◽  
1992 ◽  
Vol 187 (4) ◽  
Author(s):  
David McCaskill ◽  
Jonathan Gershenzon ◽  
Rodney Croteau
Keyword(s):  
Secretory Cell ◽  
Glandular Trichomes ◽  
Mentha Piperita ◽  
Cell Clusters

Silicon Nanoparticles Mediated Increase in Glandular Trichomes and Regulation of Photosynthetic and Quality Attributes in Mentha piperita L.

2019 ◽  
Vol 39 (1) ◽  
pp. 346-357
Author(s):  
Bilal Ahmad ◽  
M. Masroor A. Khan ◽  
Hassan Jaleel ◽  
Asfia Shabbir ◽  
Yawar Sadiq ◽  
...  
Keyword(s):  
Silicon Nanoparticles ◽  
Glandular Trichomes ◽  
Quality Attributes ◽  
Mentha Piperita

Étude biomathématique du nombre de glandes peltées des feuilles de Mentha ×piperita

1993 ◽  
Vol 71 (9) ◽  
pp. 1202-1211 ◽  
Author(s):  
M. Colson ◽  
R. Pupier ◽  
A. Perrin
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Leaf Blade ◽  
Glandular Trichomes ◽  
Leaf Length ◽  
Mentha Piperita ◽  
Blade Surface ◽  
Precise Description ◽  
Meristematic Activity ◽  
Scanning Electron

The enumeration of peltate glands on Mentha ×piperata leaves was carried out with respect to the date of leaf initiation and the state of its development. For this purpose, observations were made using scanning electron microscopy associated with a mathematical method based on a precise description of gland dispersal on the leaf blade surface. The number of glands can thus be estimated by using only a few photographs of the foliar region located at 2/5 of the leaf length, measuring from the base. The analyses demonstrate a consistency in the number of peltate glands for a given foliar verticil, when the leaf height is equal to or greater than 10 mm. Furthermore, these analyses indicate that the number of peltate glands vary as a function of the level of the foliar verticil. This number increases progressively in verticils 1 to 10, stabilizes, and then decreases in the last verticils produced. This reduction may originate in the meristematic activity that is gradually oriented towards efflorescence. Key words: Mentha, glandular trichomes, enumeration, spatial distribution, leaves, scanning electron microscopy. [Journal translation]

Nuclear morphology and DNA content in the glandular trichomes of peppermint (Mentha×piperita L.)

PROTOPLASMA ◽  
1993 ◽  
Vol 175 (3-4) ◽  
pp. 85-92 ◽  
Author(s):  
Graziella Berta ◽  
M. Dela Pierre ◽  
M. Maffei
Keyword(s):  
Dna Content ◽  
Glandular Trichomes ◽  
Mentha Piperita ◽  
Nuclear Morphology

scholarly journals SECRETORY STRUCTURES AND ESSENTIAL OIL COMPOSITION OF SELECTED INDUSTRIAL SPECIES OF LAMIACEAE

2019 ◽  
Vol 18 (2) ◽  
pp. 53-69 ◽  
Author(s):  
Radosław Kowalski ◽  
Grażyna Kowalska ◽  
Monika Jankowska ◽  
Agnieszka Nawrocka ◽  
Klaudia Kałwa ◽  
...  
Keyword(s):  
Essential Oil ◽  
Plant Species ◽  
Glandular Trichomes ◽  
Average Diameter ◽  
Mentha Piperita ◽  
Adaxial Side ◽  
Secretory Structures ◽  
Lemon Balm ◽  
Capitate Trichomes ◽  
Peltate Trichomes

The objective of the study was to perform micromorphological analyses of the secretory structures of leaves and stems of oil-bearing industrial plants from the Lamiaceae family such as lemon balm (Melissa officinalis L.), peppermint (Mentha × piperita L.), sage (Salvia officinalis L.), marjoram (Origanum majorana L., syn. Origanum dubium Boiss.), rosemary (Rosmarinus officinalis L.) and common thyme (Thymus vulgaris L.) using light microscope and scanning electron microscope. In addition, an estimation of the content of volatile substances in the plant species under study was performed using GC-MS, as well as the qualitative and quantitative analysis of essential oil, that is an important component in terms of the estimation of raw material applicability for use in the industry. In the epidermal cells of studied plants, 2 types of Lamiaceae-type glandular trichomes were identified: short- and long-stalked capitate glandular trichomes with single- and bicellular secretory capitulum, and peltate glandular trichomes with eight- and over a dozen-cell secretory capitulum. Capitate trichomes were densely distributed on the surface of the epidermis, while peltate trichomes were sparse, though regular, and were situated in depressions. Glandular trichomes were found more frequently on leaves than on stems. The cuticle of the abaxial of leaf was characterized in most cases by the occurrence of larger average diameter peltate trichomes compared to the cuticle of the adaxial side of leaf. Peppermint produced the largest structures accumulating essential oil on the leaves (average diameter of peltate trichomes – 78.48 µm on the adaxial side of leaf, up to 96.43 µm), while on the stem, the highest average diameter of the peltate trichomes was observed in sage (an average of 75.53 µm, up to 85.99 µm). The lemon balm was characterized by the presence of capitate and peltate trichomes with the smallest diameter (an average of 44.26 µm). Lemon balm was characterized by the greatest density of glandular trichomes compared to other plant species. Among the plants studied, the highest content of oil was noted in the case of thyme and peppermint (2.22% and 2.20% v/w, respectively), and the lowest in green parts of lemon balm (0.17% v/w). The isolated essential oils contained predominantly components from the groups of monoterpenes and sesquiterpenes, and it is the presence of those substances that determines the possibility of utilizing the plants studied for a variety of purposes.

An investigation into the ultrastructure and histochemistry of glandular trichomes of johnsongrass [Sorghum halepense (L.) Pers.] leaves

1992 ◽  
Vol 50 (1) ◽  
pp. 842-843 ◽  
Author(s):  
R. N. Paul ◽  
C. G. McWhorter ◽  
J.C. Ouzts
Keyword(s):  
Glandular Trichomes ◽  
Sorghum Halepense ◽  
Secretory Apparatus

Secretory trichomes have been described on johnsongrass leaves previously, but there is little knowledge of their ultrastructure or the nature of their secretion. Since johnsongrass is a pernicious weed, there is much interest in the nature of compounds found on its foliar surface, and the possible effect of these extrusions on herbicide efficiency. This report describes the results of an investigation into the ultrastructure of the secretory apparatus, and into the nature of the secretion.

The Effects of Estradiol on Chronically Damaged Human Fallopian Tubes: A SEM Study

1985 ◽  
Vol 43 ◽  
pp. 648-649
Author(s):  
A. Toledo ◽  
G. Stoelk ◽  
M. Yussman ◽  
R.P. Apkarian
Keyword(s):  
Menstrual Cycle ◽  
Epithelial Cell ◽  
Secretory Cell ◽  
Estrogen Therapy ◽  
Fallopian Tubes ◽  
Cell Surfaces ◽  
Proliferative Phase ◽  
Cyclic Patterns ◽  
Sem Study ◽  
The U.S

Today it is estimated that one of every three women in the U.S. will have problems achieving pregnancy. 20-30% of these women will have some form of oviductal problems as the etiology of their infertility. Chronically damaged oviducts present problems with loss of both ciliary and microvillar epithelial cell surfaces. Estradiol is known to influence cyclic patterns in secretory cell microvilli and tubal ciliogenesis, The purpose of this study was to assess whether estrogen therapy could stimulate ciliogenesis in chronically damaged human fallopian tubes.Tissues from large hydrosalpinges were obtained from six women undergoing tuboplastic repair while in the early proliferative phase of fheir menstrual cycle. In each case the damaged tissue was rinsed in heparinized Ringers-lactate and quartered.

Fetuin-A impairs maturation of pig neonatal islet cell clusters

2018 ◽  
Author(s):  
F Gerst ◽  
AK Fritz ◽  
E Lorza Gil ◽  
E Wolf ◽  
HU Häring ◽  
...  
Keyword(s):  
Islet Cell ◽  
Fetuin A ◽  
Cell Clusters

Hop pellets type 90: ESEM studies of glandular trichomes morphological and structural changes during the different phases of hop processing

2011 ◽  
Vol 40 (2) ◽  
pp. 282-290 ◽  
Author(s):  
S. Srečec ◽  
V. Zechner-Krpan ◽  
S. Marag ◽  
G. Mršić ◽  
I. Špoljarić
Keyword(s):  
Structural Changes ◽  
Glandular Trichomes
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