Cacti Biology and Uses by Park S. Nobel

By Park S. Nobel

The Cactaceae family members, with approximately 16 hundred species, is cultivated around the world for culmination, forage, fodder, or even as a vegetable. Cacti are famous for his or her appealing plant life, designated stem shapes, and skill to tolerate drought. as a result of their effective use of water and different diversifications, organic and agronomic curiosity in cacti has soared. those attention-grabbing vegetation even have a lot to coach us approximately biodiversity and conservation. but a present, artificial, wide-ranging reference on cacti has no longer been on hand earlier. This finished ebook, compiled by way of a widely known cactus biologist, contains authoritative, up to date chapters via thirty-five members from around the globe on issues starting from evolution to biotechnology. it's the first ebook of its style to collect info on cactus biology, ecology, and makes use of in a single handy place.

The first 1/2 the booklet offers a radical review of cactus biology and morphology and discusses the environmental and conservation concerns that impact the vegetation. It features a dialogue of the evolution of the family members, paying specific cognizance to new genetic and molecular ways. the second one 1/2 the ebook specializes in the sensible matters of cultivating cacti, akin to pest regulate and illnesses, horticultural and forage functions, and strategies for agronomy. different chapters conceal the various markets for cacti and items which are made up of them.

This particular quantity may be a competent and informative reference for ecologists and environmentalists, agriculturists, plant biologists, and someone heavily drawn to those extraordinary plants.

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The genera of Cactaceae: towards a new consensus. Bradleya 4: 65–78. Mauseth, J. , Y. Uozumi, B. J. Plemons, and J. V. Landrum. 1995. Structural and systematic study of an unusual tracheid type in cacti. Journal of Plant Research 108: 517–526. Hunt, D. , and N. P. ). 1990. The genera of Cactaceae: progress towards consensus. Bradleya 8: 85– 107. Mauseth, J. , T. Terrazas, and S. Loza-Cornejo. 1998. Anatomy of relictual members of subfamily Cactoideae, IOS group 1a (Cactaceae). Bradleya 16: 31–43.

Cortical bundles are collateral and contain primary and secondary xylem and phloem. Secondary phloem accumulates at a higher rate than secondary xylem, which may or may not increase with stem age (Mauseth and Sajeva 1992). For example, for Mammillaria parkinsonii and Pediocactus simpsonii, older bundles have much more xylem than younger ones. In some species, cortical bundles contain phloem fibers that differentiate adjacent to the conducting cells of the phloem, such as for species of Acanthocereus (Mauseth et al.

Cactus wood of any type virtually never has annual growth rings. The most clear-cut examples of growth rings are restricted to wide-band tracheid wood of North American small cacti (Ferocactus, Echinocactus, and relatives), but not to the South American ones (Gymnocalycium, Echinopsis, and others). In wood that has annual rings, the presence of a vessel-rich earlywood combined with a latewood of such wide-band tracheids makes growth rings visible to the naked eye. In South American taxa with wide-band tracheid wood, vessels and apotracheal parenchyma are mixed in with late- Shoot Anatomy and Morphology 33 wood; consequently, earlywood and latewood are difficult to distinguish, and no growth rings can be detected.

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