The red light inhibition of growth of the intact pea (Pisum sativum L. cv. Alaska) third internode was correlated with an increase in the content of cell wall-bound hydroxyproline. These changes were detected 3 hours after irradiation, and possibly at 1 hour. Far red light reversed the effects of red light. The iron chelator alpha,alpha'-dipyridyl reversed the red light effects on both growth a...

Extensin, the structural motif of plant extracellular matrix proteins, possesses a unique highly glycosylated, hydrophilic, and repeating Ser1Hyp4 pentapeptide unit, and has been proposed to include post-translational hydroxylation at proline residue and subsequent oligo-L-arabinosylations at all of the resultant hydroxyprolines as well as galactosylation at serine residue. Reported herein is t...

Effects of excess concentrations of boron on major cell wall components of tobacco cells(Nicotiana tabacum L. cv. Burley 21) were studied. Pectin, xyloglucan, hydroxyproline-richglycoproteins (extensin), and arabinogalactan proteins were characterized. Results showedthat increased boron supply resulted in significant decrease in cell and cell wall dry weights.Also, high concentrations of boron ...

The Learning From Home (BDR) policy aims to cover all levels of education, from kindergarten college. BDR activities were initially carried out prevent the spread Covid-19 in field education. In Activities, parents are involved participating learning process, assisting teachers carrying process. This research uses a descriptive qualitative method, namely method by objectively describing object ...