Whole -root iron(III)-reductase activity throughout the life cycle of iron-grown Pisum sativum L. (Fabaceae): relevance to the iron nutrition of developing seeds

Planta ◽  
1995 ◽  
Vol 197 (1) ◽  
Author(s):  
MichaelA. Grusak
Keyword(s):  
Life Cycle ◽  
Pisum Sativum ◽  
Reductase Activity ◽  
Iron Nutrition ◽  
Developing Seeds ◽  
Pisum Sativum L

Feeding stem–leaf–pod explants of pea (Pisum sativum L.) with d-chiro-inositol or d-pinitol modifies composition of α-d-galactosides in developing seeds

2010 ◽  
Vol 20 (4) ◽  
pp. 213-221 ◽  
Author(s):  
Lesław B. Lahuta ◽  
Wojciech Święcicki ◽  
Tomasz Dzik ◽  
Ryszard J. Górecki ◽  
Marcin Horbowicz
Keyword(s):  
Pisum Sativum ◽  
Soluble Carbohydrates ◽  
Raffinose Family Oligosaccharides ◽  
Developing Seeds ◽  
Pisum Sativum L ◽  
Pea Seeds ◽  
Low Levels ◽  
Stem Leaf

AbstractFeeding stem–leaf–pod explants with d-chiro-inositol and d-pinitol was used as a method to modify α-d-galactosides in developing pea (Pisum sativum) seeds. Four genotypes differing in the composition of raffinose, stachyose and verbascose (raffinose family oligosaccharides or RFOs) in seeds – high RFOs (cv. Tiny), low RFOs (SZD175) and low verbascose (cv. Hubal and cv. Wt 506) – were studied. Although seeds of all examined pea lines were able to take up both d-chiro-inositol and d-pinitol, only d-chiro-inositol was effectively converted into its galactosides: mainly fagopyritol B1 (O-α-d-galactopyranosyl-(1 → 2)-d-chiro-inositol) and fagopyritol B2 (O-α-d-galactopyranosyl-(1 → 6)-O-α-d-galactopyranosyl-(1 → 2)-d-chiro-inositol). In seeds of pea lines naturally containing low levels of verbascose (cv. Hubal) and low RFOs (SZD175), the enhanced accumulation of fagopyritols depressed the RFO level by c. 64 and 20%, respectively. Moreover, in both genotypes, about 25 and 30% of total galactose bound in α-d-galactosides occurred in fagopyritols. d-Pinitol present in the pea seeds was converted into monogalactosides, but their accumulation was several-fold lower than that of fagopyritols and did not significantly influence the accumulation of RFOs. Pea seeds with the composition of soluble carbohydrates modified by feeding with either of the cyclitols were able to complete germination.

Release of Amino Acids from Cotyledons of Developing Seeds of Pea (Pisum sativum L.)

1989 ◽  
Vol 134 (5) ◽  
pp. 592-597 ◽  
Author(s):  
F.C. Lanfermeijer ◽  
J.W. Koerselman-Kooij ◽  
C. Kollöffel ◽  
A.C. Borstlap
Keyword(s):  
Amino Acids ◽  
Pisum Sativum ◽  
Developing Seeds ◽  
Pisum Sativum L

scholarly journals Accumulation of Phosphorus-Containing Compounds in Developing Seeds of Low-Phytate Pea (Pisum sativum L.) Mutants

Plants ◽  
2014 ◽  
Vol 4 (1) ◽  
pp. 1-26 ◽  
Author(s):  
Arun Shunmugam ◽  
Cheryl Bock ◽  
Gene Arganosa ◽  
Fawzy Georges ◽  
Gordon Gray ◽  
...  
Keyword(s):  
Pisum Sativum ◽  
Developing Seeds ◽  
Pisum Sativum L ◽  
Phosphorus Containing

Leucyl β -Naphthylamidase Activities in Developing Seeds and Seedlings of Pisum sativum L

1977 ◽  
Vol 4 (4) ◽  
pp. 571 ◽  
Author(s):  
MD Collier ◽  
DR Murray
Keyword(s):  
Pisum Sativum ◽  
Maximum Rate ◽  
Storage Proteins ◽  
Total Activity ◽  
Selective Inhibitor ◽  
Cellular Proteins ◽  
Developing Seeds ◽  
Pisum Sativum L ◽  
Soluble Enzymes ◽  
Germinating Seeds

The activities of two soluble enzymes which hydrolyse L-leucyl �-naphthylamide have been measured in extracts from tissues of seeds and seedlings of Pisum sativum L. by using the chelator 1,10-phenanthroline as a selective inhibitor. In all the tissues studied, the phenanthroline-insensitive enzyme contributed the major proportion of the total activity against this substrate. In developing seeds, most of the activity of both enzymes is found in the maturing cotyledons, which develop maximum phenanthroline-sensitive and -insensitive activities respectively of 0.51 and 1.26 �mol per min per cotyledon (cv. Melbourne Market, dwarf) or 0.84 and 1.32 �mol per min per cotyledon (cv. Telephone, tall). In the cotyledons of germinating seeds, both enzyme activities increase within 24 h to values which are substantially lower than the maximum values found during development. These activities are maintained between 1 and 6 days from imbibition then they decline rapidly during the period of maximum rate of removal of protein from the cotyledon. The highest activities of both enzymes occur in tissues which are very active metabolically. This supports the view that they function as aminopeptidases in the general turnover of cellular proteins, rather than playing some additional specific role in the mobilization of storage proteins during germination.

scholarly journals Metabolism of Gibberellin A12 and A12-Aldehyde in Developing Seeds of Pisum sativum L.

1991 ◽  
Vol 97 (1) ◽  
pp. 26-33 ◽  
Author(s):  
Yu-xian Zhu ◽  
Peter J. Davies ◽  
Anna Halinska
Keyword(s):  
Pisum Sativum ◽  
Developing Seeds ◽  
Pisum Sativum L

scholarly journals Sucrose transport into developing seeds of Pisum sativum L.

1999 ◽  
Vol 18 (2) ◽  
pp. 151-161 ◽  
Author(s):  
Mechthild Tegeder ◽  
Xin-Ding Wang ◽  
Wolf B.. Frommer ◽  
Christina E.. Offler ◽  
John W.. Patrick
Keyword(s):  
Pisum Sativum ◽  
Sucrose Transport ◽  
Developing Seeds ◽  
Pisum Sativum L

scholarly journals Subcellular Location of NADPH-Dependent Hydroxypyruvate Reductase Activity in Leaf Protoplasts of Pisum sativum L. and Its Role in Photorespiratory Metabolism

1988 ◽  
Vol 88 (4) ◽  
pp. 1182-1185 ◽  
Author(s):  
Leszek A. Kleczkowski ◽  
Curtis V. Givan ◽  
Jacqueline M. Hodgson ◽  
Douglas D. Randall
Keyword(s):  
Pisum Sativum ◽  
Reductase Activity ◽  
Subcellular Location ◽  
Hydroxypyruvate Reductase ◽  
Pisum Sativum L ◽  
Leaf Protoplasts

Cell free synthesis of some storage protein subunits by polyribosomes and RNA isolated from developing seeds of pea (Pisum sativum L.)

Planta ◽  
1979 ◽  
Vol 144 (5) ◽  
pp. 455-462 ◽  
Author(s):  
I. Marta Evans ◽  
Ronald R. D. Croy ◽  
Philippa Hutchinson ◽  
Donald Boulter ◽  
Peter I. Payne ◽  
...  
Keyword(s):  
Pisum Sativum ◽  
Storage Protein ◽  
Protein Subunits ◽  
Developing Seeds ◽  
Pisum Sativum L
Sign in / Sign up

Export Citation Format

Share Document