Orchid pseudobulbs ± ` false ' bulbs with a genuine importance in orchid growth and survival !

نویسندگان

  • Carl Khee Yew Ng
  • Choy Sin Hew
چکیده

Most orchids have conspicuous storage organs. For epiphytic orchids, storage organs are enlarged stems called pseudobulbs. Considerable efforts have been devoted to the study of orchids in recent years. In contrast, few studies have examined the role of pseudobulbs in orchid growth and survival. This paper reviews the photosynthetic role of pseudobulbs, its role in partitioning of assimilates and storage of water, carbohydrate and minerals. Results from the handful of studies of orchid pseudobulbs have shown these specialised structures to be of central importance in the growth and survival of orchids. # 2000 Elsevier Science B.V. All rights reserved.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The Effects of Hydro-alcoholic Extracts of Allium sativum L. and Orchismaculata L. on Spermatogenesis Index and Testosterone Level in Cyclophosphamide-treated Rats

Background:One of the most common side effects of cyclophosphamide (CP) is oligo-spermatozoa, azoospermia and elimination of spermatogenic cycles. This study was done to find the efficacy of simultaneous consumption of garlic (Allium sativum L.) and orchid (Orchismaculata L.) hydroalcoholic extracts on spermatogenesis and sex hormones in rats treated with CP. ...

متن کامل

Using Information Technology Managing Flower Market in Taiwan

This research brings forward the Pleione Formosana Hayata Orchid product market demand forecasting system to assist the traditional market personnel to forecast the demand of its customer in the future. The characteristic of Pleione Formosana orchid is one bulb with one leaf only. It sells by the bulbs. By the time for harvesting the operating personnel need spend much capital on the stock of b...

متن کامل

Uptake of ant-derived nitrogen in the myrmecophytic orchid Caularthron bilamellatum.

BACKGROUND AND AIMS Mutualistic ant-plant associations are common in a variety of plant families. Some myrmecophytic plants, such as the epiphytic orchid Caularthron bilamellatum, actively form hollow structures that provide nesting space for ants (myrmecodomatia), despite a substantial loss of water-storage tissue. This study aimed at assessing the ability of the orchid to take up nitrogen fro...

متن کامل

In vitro propagation of orchid Phalaenopsis amabilis (L.) Blume var. Jawa

A protocol was developed for high frequency in vitro multiplication of an ornamental orchid, Phalaenopsis amabilis (L.) Blume var. Jawa, using plant growth regulators (PGRs). Protocorm-like bodies (PLBs), as explants were cultured on Murashige and Skoog (MS) medium fortified with various concentrations of kinetin (KIN) and indole-3-butyric acid (IBA), either individually or in...

متن کامل

Effect of explants type, light and polysaccharides on micropropagation of Catasetum orchid (Catasetum fimbriatum, L.)

The aim of present study was to investigate the effect of explants types, in light and darkness condition on propagation of lateral plantlets and also to investigate the effect of type and concentrations of carbohydrates on the regeneration of Catasetum orchid plantlets in two experiments. First experiment for propagation of lateral plantlets was done with two types of explants, shoot tips and ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2000