A NEW HAPLOPTILIA WITH NOTES ON TWO OTHER SPECIES (LEPID)

1936 ◽  
Vol 68 (3) ◽  
pp. 52-55 ◽  
Author(s):  
J. McDunnough
Keyword(s):  
Apical Portion ◽  
Basal Portion ◽  
As If

In the middle of June, 1934, while spending a few days at Annapolis Royal. N. S., I collected some Haploptilia cases of the pruniella type from the foliage of Kalvnia. Half a dozen or so of these cases were attached to the upper-side of the previous year's leaves; they were dull gray-brown in color and the apical portion was noticeably weather-worn as if the cases had hibernated; there was no sign that living larvae were within them as they remained perfectly quiescent on the leaves. A few other cases, found at the same time, showed evidence that living larvae were still within; these cases were brighter brown in color and appeared to have been more recently constructed as the apical portions showed clearly the smaller cases of one, and sonletimes two, previous instars, attached in the usual holster-like manner to the much larger and broader basal portion. These latter larvae crawled about in the receptacle and fed slightly but soon in their turn became quiescent. The accompanying figures give some idea of the two forms of cases.

scholarly journals Infection with Rhizoctonia solani Induces Defense Genes and Systemic Resistance in Potato Sprouts Grown Without Light

2008 ◽  
Vol 98 (11) ◽  
pp. 1190-1198 ◽  
Author(s):  
M. J. Lehtonen ◽  
P. Somervuo ◽  
J. P. T. Valkonen
Keyword(s):  
Rhizoctonia Solani ◽  
Secondary Infection ◽  
Quantitative Polymerase Chain Reaction ◽  
Systemic Resistance ◽  
Pathogen Defense ◽  
Systemic Induction ◽  
Challenge Inoculation ◽  
Apical Portion ◽  
Significant Damage ◽  
Basal Portion

Rhizoctonia solani is an important soilborne and seedborne fungal pathogen of potato (Solanum tuberosum). The initial infection of sprouts prior to emergence causes lesions and may be lethal to the sprout or sprout tip, which results in initiation and compensatory growth of new sprouts. They emerge successfully and do not suffer significant damage. The mechanism behind this recovery phenomenon is not known. It was hypothesized that infection may induce pathogen defense in sprouts, which was investigated in the present study. Tubers were sprouted in cool and moist conditions in darkness to mimic conditions beneath soil. The basal portion of the sprout was isolated from the apical portion with a soft plastic collar and inoculated with highly virulent R. solani. Induction of defense-related responses was monitored in the apical portion using microarray and quantitative polymerase chain reaction techniques at 48 and 120 h postinoculation (hpi) and by challenge-inoculation with R. solani in two experiments. Differential expression of 122 and 779 genes, including many well-characterized defense-related genes, was detected at 48 and 120 hpi, respectively. The apical portion of the sprout also expressed resistance which inhibited secondary infection of the sprouts. The observed systemic induction of resistance in sprouts upon infection with virulent R. solani provides novel information about pathogen defense in potato before the plant emerges and becomes photosynthetically active. These results advance our understanding of the little studied subject of pathogen defense in subterranean parts of plants.

First record of tiger beetles (Coleoptera, Cicindelidae) from Rovno amber, with the description of a new genus and species

Zootaxa ◽  
2021 ◽  
Vol 5016 (2) ◽  
pp. 243-256
Author(s):  
ANDREY V. MATALIN ◽  
EVGENY E. PERKOVSKY ◽  
DMITRY V. VASILENKO
Keyword(s):  
New Genus ◽  
First Record ◽  
Rovno Amber ◽  
New Genus And Species ◽  
Apical Portion ◽  
Tiger Beetle ◽  
Tiger Beetles ◽  
Probable Presence ◽  
Basal Portion ◽  
Fossil Resins

A new fossil tiger beetle species, Goriresina fungifora gen. n., sp. n. (Coleoptera, Cicindelidae), is described from Eocene Rovno amber. The new genus belongs to the subtribe Iresiina, tribe Cicindelini, due to the glabrous head, the labrum with six submarginal setae (latero-basal setae very long) and two apical teeth with notch between them, the glabrous and globular pronotum, the lack of setae on the metepisternum and metepimeron, as well as on the visible parts of abdominal sternites, the single long seta each on the fore- and mesotrochanter. The new species is characterized by the long and moderately convex labrum, two clypeal setae, the elongate and apicad converging elytra with an angularly, but smoothly rounded apex, the small and sharp sutural spine, the probable presence of an apical portion of the elytral humeral spot, a slightly sinuate, transverse medial fascia with an extended and downward directed apical portion, and a slightly transverse basal portion of the apical spot. This is the first record of a tiger beetle in Rovno amber and only a fourth well-preserved Cicindelidae from fossil resins.  

Ectomycorrhiza synthesis between isolated roots of Eucalyptus pilularis and Pisolithus tinctorius

1988 ◽  
Vol 66 (6) ◽  
pp. 1237-1239 ◽  
Author(s):  
S. R. Bailey ◽  
R. L. Peterson
Keyword(s):  
Filter Paper ◽  
Callus Cultures ◽  
Pisolithus Tinctorius ◽  
Root Tips ◽  
Apical Portion ◽  
Hypocotyl Explants ◽  
Hartig Net ◽  
Isolated Roots ◽  
Basal Portion ◽  
Eucalyptus Pilularis

Callus cultures were established from epicotyl–hypocotyl explants of Eucalyptus pilularis seedlings. Roots formed on these cultures were excised and placed in divided petri plates. The apical portion of each root was placed on filter paper overlying modified Bonner–Deverian medium, while the basal portion was placed on Bonner–Deverian medium containing carbohydrates. Plugs of Pisolithus tinctorius mycelium were placed adjacent to the apical portion of each root. After 10–14 days, approximately 40% of all root tips formed a mantle and Hartig net typical of ectomycorrhizas.

Notomicrus josiahi, a new species of Noteridae (Coleoptera) from Venezuela

Zootaxa ◽  
2013 ◽  
Vol 3609 (2) ◽  
pp. 243-247 ◽  
Author(s):  
KELLY B. MILLER
Keyword(s):  
New Species ◽  
Male Genitalia ◽  
Dorsal Surface ◽  
Apical Portion ◽  
Large Size ◽  
Basal Portion ◽  
A New Species

Notomicrus josiahi sp. n. is described from a stream in southern Venezuela. The species differs from others in the genus in 1) large size for the genus (1.48–1.53mm), 2) smooth, shiny dorsal surface with indistinct punctation and mircroretic-ulation, 3) distinct coloration with head and pronotum yellow and elytron bicolored with basal portion black and apical portion brown, and 4) distinctive male genitalia. A checklist of the valid, known species of Notomicrus is given.

scholarly journals LOCALIZATION BY PEROXIDASE-LABELED ANTIBODIES OF BOVINE CHYMOTRYPSINOGEN

1970 ◽  
Vol 18 (3) ◽  
pp. 195-200 ◽  
Author(s):  
ROBERT SCHIFF ◽  
RICHARD J. KRIEG ◽  
ROBERT L. HUNTER
Keyword(s):  
Horseradish Peroxidase ◽  
Acinar Cells ◽  
Cross Reaction ◽  
Zymogen Granules ◽  
Cytoplasmic Staining ◽  
Apical Portion ◽  
Precipitin Line ◽  
Basal Portion ◽  
The Cross ◽  
Gel Diffusion

The localization of bovine chymotrypsinogen in the pancreas was investigated by horseradish peroxidase-labeled antibodies. Chymotrysinogen was not only found in the zymogen granules of the apical portion of the acinar cells of some acini but also in the basal portion and surrounding the nuclei in other acini. Not all acinar cells exhibited the same degree of staining in a given acinus. This indicated asynchronous proenzyme production. Cytoplasmic staining was found but may have been an artifact. Gel diffusion showed a single precipitin line of identity between trypsinogen, trypsin, chymotrypsinogen, and α-, β- and γ-chymotrypsin. Because of the cross-reaction it is presumed that the antibody was recognizing both trypsinogen and chymotrypsinogen.

scholarly journals (233) Comparison of Inflorescence Morphology, Anthesis and Floral Sex Expression in Bottlebrush and Red Buckeye

HortScience ◽  
2006 ◽  
Vol 41 (4) ◽  
pp. 1020B-1020
Author(s):  
Ann M. Chanon ◽  
Pablo S. Jourdan ◽  
Joseph C. Scheerens
Keyword(s):  
Interspecific Hybridization ◽  
Flower Development ◽  
Floral Biology ◽  
Sex Expression ◽  
Flower Number ◽  
Apical Portion ◽  
Inflorescence Morphology ◽  
Basal Portion ◽  
Male Flowers ◽  
Morphology Pattern

As a prelude to interspecific hybridization, we compared the floral biology of bottlebrush buckeye (Aesculus parviflora) and red buckeye (A. pavia) by examining inflorescence morphology, pattern of floral anthesis, sex expression, and the effects of panicle decapitation on complete flower development. Inflorescences of both species (n = 1606) were randomly selected and analyzed for length, total number of flowers and complete flower number and location. The pattern of anthesis was observed in four genotypes using 10–30 inflorescences per plant. For each flower, its date of anthesis, position on both the rachis and cincinnus, and sex were recorded. For studies of panicle decapitation, sets of panicles were selected and one member was severed in half early in development in an attempt to increase the number of complete flowers. More than one-fourth of all panicles observed were completely staminate. For both species, the ratio of complete flowers to male flowers (C:M) within mixed panicles was about 5%. Complete flowers were observed in the basal portion of A. pavia inflorescences and in the apical portion of A. parviflora inflorescences. Anthesis progressed from base to tip over a period of 6–11 days. Complete flowers are present in A. pavia from the beginning of anthesis but do not appear in A. parviflora until the fifth day of anthesis. Staminate flowers are present throughout anthesis in both species. Severing panicles in half increased the potential for differentiating complete flowers. In conclusion, the frequency of complete flowers in both species was quite low, but could be increased by panicle decapitation to increase opportunities for controlled hybridization.

Prenatal development of rectal patch in large intestine of goats

2017 ◽  
Author(s):  
V. R. Indu ◽  
K. M. Lucy ◽  
N. Ashok ◽  
S. Maya
Keyword(s):  
Lamina Propria ◽  
Gestational Age ◽  
Germinal Center ◽  
Prenatal Development ◽  
Surface Epithelium ◽  
High Endothelial Venules ◽  
Apical Portion ◽  
Continuous Band ◽  
Basal Portion ◽  
Lymphoid Nodules

Prenatal development of rectal patch was studied in 30 goat fetuses ranging from 1.4 cm CRL (24 days of gestation) to 38.0 cm CRI (Crown ramp length). Rectal patch first appeared in goat foetuses by 60 days of gestational age as a continuous band of small to medium–sized lymphocytes in the lamina propria of rectum. During fourth month of gestation, the primordia differentiated into large lymphoid nodules which had an oval basal portion and a pyramidal apical portion, which formed a dome-like structure within the intestinal ridges below the surface epithelium and was surrounded by an irregular capsule. During fifth month, an increase in the number and size of the lymphoid nodules and primordial dome region was noticed. The lymphoid nodules were histologically mature with a prominent germinal center, its corona, a wide dome area and an internodular area with few high endothelial venules. The rectal patch was histologically mature at birth with both primary and secondary nodules in it.

Effect of Bud vs Rosette Growth Stage on Translocation of14C-Glyphosate in Canada Thistle (Cirsium arvense)

Weed Science ◽  
1995 ◽  
Vol 43 (3) ◽  
pp. 347-351 ◽  
Author(s):  
James H. Hunter
Keyword(s):  
Growth Stage ◽  
Stem Elongation ◽  
Fold Increase ◽  
Cirsium Arvense ◽  
Controlled Environment ◽  
Canada Thistle ◽  
Apical Portion ◽  
Time Of Application ◽  
Shoot Tissue ◽  
Basal Portion

The effect of photoperiod and growth stage on translocation of14C-glyphosate was compared in Canada thistle plants at the bud and rosette stage of growth. Canada thistle plants grown under controlled environment conditions with a 10 h photoperiod remained as low growing rosettes and developed a mature root system. When the photoperiod for half of these plants was increased to 16 h, stem elongation occurred and flowering was initiated. Growth stage at the time of application affected the distribution of14C-glyphosate within the elongated shoot and between the shoot and root. The shoot tissue of the bud stage plants contained 25.9% of the14C-glyphosate recovered, while the rosette plants contained only 3.6%; a seven-fold difference.14C-glyphosate was applied to leaves 19 and 20, which corresponded to the mid-point of the elongated stem of the bud-stage plants. In the bud-stage plants,14C-glyphosate moved preferentially into the apical portion of the stem, with three to four times as much in the apical portion of the elongated stem as in the basal portion. In the roots, the effect of growth stage on distribution of14C-glyphosate was reversed, application at the rosette stage resulted in a four-fold increase in the amount of14C-glyphosate in the root. When applied in the rosette stage, 19.1% of the14C-glyphosate detected was in the root compared to only 4.9% when applied at the bud stage. Although the root of the rosette plants was larger than in bud-stage plants, the concentration of14C-glyphosate in the root tissue of the rosette plants was three times greater. Photoperiod indirectly affected the distribution of14C-glyphosate in Canada thistle by its effect on growth.

scholarly journals Vegetative propagation of physic nut (Jatropha curcas L.) through stem cuttings

2014 ◽  
Vol 6 (2) ◽  
pp. 467-472
Author(s):  
P. K. Sahoo ◽  
L. K. Behera ◽  
S. K. Nayak
Keyword(s):  
Jatropha Curcas ◽  
Root Length ◽  
Stem Cuttings ◽  
Middle Portion ◽  
Farm Yard Manure ◽  
Apical Portion ◽  
Fresh Biomass ◽  
Dry Biomass ◽  
Basal Portion ◽  
Indole 3 Acetic Acid

The selected healthy branches of Jatropha curcas were cut into 15 cm and 25 cm length having 4 to 5 nodes in each category of apical portion (thickness < 1cm), middle portion (1.0 to 1.5 cm) and basal portion (1.5 to 2 cm). The base positions of apical, middle, basal portions of cuttings were dipped in the 100, 200, 400, 800 and 1000 ppm of IAA (Indole-3-acetic acid) and IBA (Indole-3-butyric acid) respectively for four hours. After which the cuttings were planted in the polypots filled with rooting media consists of sand, soil and farm yard manure (FYM) in the ratio of 1:2:1. Maximum sprouting (100%) was observed in 25 cm as well as 15 cm length cuttings of different portions. In case of 25 cm length different sections like apical cuttings when treated with 200 ppm, 800 ppm IAA and 400 ppm IBA, basal cutting with 800 ppm IAA and 200, 400 ppm IBA and middle cuttings with 200 ppm IAA, similarly 15cm length basal portion cutting treated with 400 ppm IAA produce 100 per cent sprouting. Other characters like rooting percentage (93.33%), root length (37.66cm), fresh biomass (73.21g) and dry biomass (34.06g) were observed maximum in apical portion cutting of 25 cm length treated with 100 ppm IBA, 800 ppm IBA, 100 ppm IAA and 100 ppm IAA respectively where as root number (17.0) found maximum in middle portion cutting of 15cm length treated with 1000 ppm IAA. It showed that the apical portion of 25 cm length cuttings treated with IAA and IBA resulted in maximum sprouting, rooting percentage, root length, fresh biomass and dry biomass production.

Sign in / Sign up

Export Citation Format

Share Document