Reproductive Biology of Some Gum-Producing Indian Desert Plants

Achyranthes aspera (devil's horsewhip).

10.1079/cpc.2664.20210102260 ◽

2021 ◽

Author(s):

Julissa Rojas-Sandoval ◽

Pedro Acevedo-Rodríguez

Keyword(s):

Reproductive Biology ◽

Seed Dormancy ◽

Helicoverpa Armigera ◽

Arable Land ◽

Desert Plants ◽

Achyranthes Aspera ◽

Pod Borer ◽

Helicoverpa Armígera ◽

Sun And Shade

Abstract Physiology and Phenology: A. aspera is a coarse herb or shrub, sometimes growing in arable land as an annual, but under suitable conditions lasting for a number of years and reaching a height of 4 m. There are sun and shade adapted types (Vora et al., 1989). Reproductive Biology: In germination studies of desert plants, Khan et al. (1984) noted little seed dormancy in this species. Associations: A. aspera displays anti-feedant activity against gram pod borer (Helicoverpa armigera; Singh et al., 2001).

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Eco-Physiological Studies On Indian Desert Plants: Effect Of Salt On Antioxidant Defense Systems In Ziziphus Spp

Tasks for Vegetation Science - Ecophysiology of High Salinity Tolerant Plants ◽

10.1007/1-4020-4018-0_14 ◽

2006 ◽

pp. 201-213 ◽

Cited By ~ 1

Author(s):

N. Sankhla ◽

H. S. Gehlot ◽

R. Choudhary ◽

S. Joshi ◽

R. Dinesh

Keyword(s):

Antioxidant Defense ◽

Desert Plants ◽

Indian Desert ◽

Defense Systems ◽

Antioxidant Defense Systems ◽

Physiological Studies

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Fine structure and possible functions of the hermaphrodite duct of some pulmonate snails (Mollusca: Gastropoda)

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100157887 ◽

1990 ◽

Vol 48 (3) ◽

pp. 68-69

Author(s):

Alan N. Hodgson

Keyword(s):

Electron Microscopy ◽

Transmission Electron Microscopy ◽

Fine Structure ◽

Seminal Vesicle ◽

Reproductive Biology ◽

Light Microscope ◽

Light Microscope Level ◽

Transmission Electron ◽

Standard Techniques

The hermaphrodite duct of pulmonate snails connects the ovotestis to the fertilization pouch. The duct is typically divided into three zones; aproximal duct which leaves the ovotestis, the middle duct (seminal vesicle) and the distal ovotestis duct. The seminal vesicle forms the major portion of the duct and is thought to store sperm prior to copulation. In addition the duct may also play a role in sperm maturation and degredation. Although the structure of the seminal vesicle has been described for a number of snails at the light microscope level there appear to be only two descriptions of the ultrastructure of this tissue. Clearly if the role of the hermaphrodite duct in the reproductive biology of pulmonatesis to be understood, knowledge of its fine structure is required.Hermaphrodite ducts, both containing and lacking sperm, of species of the terrestrial pulmonate genera Sphincterochila, Levantina, and Helix and the marine pulmonate genus Siphonaria were prepared for transmission electron microscopy by standard techniques.

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