Plant Development: Differential Growth Rates in Distinct Zones Shape an Ancient Plant Form

نویسندگان

  • Lilan Hong
  • Adrienne H.K. Roeder
چکیده

A long-standing question in biology is how a group of primordial cells can give rise to complex organs. A new study finds that, in an ancient land plant, growth rate variation patterned by meristematic cells primarily determines shape.

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

Regional Growth Rate Differences Specified by Apical Notch Activities Regulate Liverwort Thallus Shape

Plants have undergone 470 million years of evolution on land and different groups have distinct body shapes. Liverworts are the most ancient land plant lineage and have a flattened, creeping body (the thallus), which grows from apical cells in an invaginated "notch." The genetic mechanisms regulating liverwort shape are almost totally unknown, yet they provide a blueprint for the radiation of l...

متن کامل

Light distribution in Chinese solar greenhouse and its effect on plant growth

Chinese solar greenhouse (CSG) is universally applied in northern China for producing horticultural products. CSG is characterized by the unbalanced structures with an arched front roof face to the south side and a thick wall as well as back roof in the north side. Such structures affect light distribution in the greenhouse. This study aims to investigate the light distribution properties in CS...

متن کامل

Effect of N- fertilizer and plant density on growth, development, herb yield and active substance of feverfew (Tanacetum parthenium Cv.Zardband) medicinal plant

The objective of this study was to investigate the effect of two N-fertilizer rates and plant density on herb yield and active substance of feverfew (Tanacetum parthenium Cv.Zardband). The experiment was performed in a factorial trial, RCB design. Three rates of N-fertilizer (0.75 and 150 kg/ha) and plant densities of 10 and 20 cm were applied as treatments, with three replications. After perfo...

متن کامل

An evolutionarily young defense metabolite influences the root growth of plants via the ancient TOR signaling pathway

To optimize fitness a plant should monitor its metabolism to appropriately control growth and defense. Primary metabolism can be measured by the universally conserved TOR (Target of Rapamycin) pathway to balance growth and development with the available energy and nutrients. Recent work suggests that plants may measure defense metabolites to potentially provide a strategy ensuring fast realloca...

متن کامل

تاثیر سولفات آمونیوم بر رشد و تجمع یونی در دانهال‏ های نارنج (Citrus aurantium) تحت شرایط تنش شوری

In order to investigate the interaction effect of salinity and nitrogen on growth, mineral composition and salinity tolerance of soure orange seedlings a factorial experiment was carried out in completely randomized design with three replications. Factors consisted of four sodium chloride rates (0, 250, 500 and 1000 mg sodium chloride kg-1 soil) and four nitrogen levels (0, 50, 100, and 200 mg ...

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:
  • Current Biology

دوره 27  شماره 

صفحات  -

تاریخ انتشار 2017