A relationship whereby an excellent parasitic bush effectively links to a finite number of host types

A relationship whereby an excellent parasitic bush effectively links to a finite number of host types

Epiphytism . That bush (the fresh new «host») useful for real assistance of the other plant. Aerial parasitic organisms such mistletoes can sensed epiphytes. But, not all epipytes was parasites! Instance, that it fall suggests one another orchid (Oncidium) and you can bromeliad (Tillandsia) epiphytes out of Andros Island, Bahamas, none where mark nutrients right from the hosts (it run out of haustorial connectivity).

Facultative Parasite . A great hemiparasitic plant that will not want an atmosphere doing its lives course. Notice, not, that in the wild, parasitism is almost constantly noticed. Of numerous people in Orobanchaceae is actually facultative hemiparasites including Agalinis , Aureolaria , and you may Seymeria .

Haustorium . The brand new morphologically altered resources hence individually connects new parasite towards the servers. Can be an initial haustorium if the radicle apex was personally transformed into an excellent haustorium (elizabeth.g. Striga asiatica ) or a holiday haustorium shaped of tissues other than new radicle apex such as for example second options apices or out of horizontal positions towards the the underlying (elizabeth.g. Ximenia , Dasistoma ). The newest haustoria out of holoparasites are more cutting-edge (find Conopholis , Balanophora , ). So it image indicating various kinds of haustoria.

An excellent parasite which is photosynthetic (throughout one stage of the lifetime period). It get liquid and nourishment from the servers xylem. Particular state-of-the-art hemiparasites (age.g. dwarf mistletoes) along with receive photosynthates throughout the machine phloem. Hemiparasites would be either facultative (elizabeth.g. of a lot Orobanchaceae) otherwise obligate (e.g. mistletoes). Contour from Holo- and you will Hemiparasites .

Heterotrophic . Writing on bacteria which do not write their own eating (thus was nonphotosynthetic). Such as for example bacteria need then see organic substances of exogenous supplies. When it comes to parasitic vegetation, it is another bush. Evaluate having autotrophic. Of a lot forms of heterotrophism are present like saprophytism, mycoheterotropism, and you may parasitism.

Holdfast . In some mistletoes, a disk-such as for instance swelling at the end of the fresh new radicle that models the latest very first attachment into host. In this exemplory instance of a keen autoparasitic Macrosolen seedling, this new holdfast exists and you may an earlier epicortical sources is actually emerging from it.

Holoparasite . Holoparasitism has evolved several times in angiosperms as shown about phylogenetic forest. Examples: Orobanche , Epifagus , Pholisma , Hydnora , Rafflesia , and you can Balanophora . Profile regarding Holo- and Hemiparasites

Hyperparasite . The difficulty in which you to definitely parasitic bush happens facultatively into some other parasitic bush from an alternate variety. See Dendropemon eericana. See and additionally epiparasite.

Insectivorism . Autotrophic plants that pitfall arthropods that have changed sources or leaves. Insectivores keeps changed independently in lots of family, particularly Droseraceae, Sarraceniaceae, Nepenthaceae, and you will Lentibulariaceae. The fresh selective tension riding brand new evolution could be lowest nitrogen access.


Mamelon . Also known as the fresh ovarian papilla. On the female (carpellate) plant life out-of mistletoes such as Arceuthobium , an undifferentiated mass out-of structure where in fact the one or two embryo sacs is stuck. Mention, in cases like this, zero correct ovule is made. The newest mamelon is even known as placental nucellar complex.

A beneficial nonphotosynthetic parasite that gets liquids and you can diet regarding host xylem and you will photosynthates regarding server phloem

Mistletoe . A term having an enthusiastic aerial parasite regarding the order Santalales. Therefore, it’s each other an explanation off plant routine together with an excellent taxonomic term. Mistletoes features changed alone five times within the Santalales: Misodendraceae, Loranthaceae, Santalaceae s. str., Amphorogynaceae, and Viscaceae. Get a hold of Vidal-Russell and you will Nickrent (2008), pdf document Right here.

Mycelium . The latest vegetative hypha from a fungi. In a number of parasitic blooming flowers including Rafflesiaceae, the brand new endophytes is quicker so much so as to end up like yeast mycelia.

Mycorrhizal . Good symbiotic association between the root out of an excellent (woody) vascular bush and a fungus. Several first versions is ectomycorrhizae, and that are present just towards resources epidermis and endomycorrhizae where fungal hyphae are present inside the forest supply. It photographs of Baird and Riopel (1986, Is. J. Bot. -717) reveals a scanning electron micrograph regarding a good Conopholis americana where to find a sugar daddy NJ (squawroot, Scrophulariaceae) seedling initiating a great haustorial partnership (white arrow) to help you an effective micorrhizal reason behind Quercus.

Acerca de Rodrigo Manuel Barreto Roa

Bueno un poco de mi, fui catequista de confirmacion 2 años, hasta que empeze a trabajar en la pastoral juvenil, desde el 2008, miembro del Instituto Diocesano de Pastoral de Juventud y miembro del equipo de pastoral de comunicaciones de la diocesis, Coordinador de la Comisión Nacional JMJ Rio 2013 por la Conferencia Episcopal Paraguaya.

Ver tambíen

I really love reading precisely what is written on your own site

I really love reading precisely what is written on your own site Hiya very cool …

0 0 Votos
Article Rating
Notify of
Inline Feedbacks
View all comments
Nos gustarían tus opiniones, por favor comenta.x
× WhatsApp / Cristonautas - Clic aquí