The different tolerance to magnesium deficiency of two grapevine rootstocks relies on the ability to cope with oxidative stress.

Background: Magnesium (Mg) deficiency causes physiological and molecular responses, already dissected in several plant species. The study of these responses among genotypes showing a different tolerance to the Mg shortage can allow identifying the mechanisms underlying the resistance to this nutritional disorder. To this aim, we compared the physiological and molecular responses (e.

The dynamic nitric oxide pattern in developing cuttlefish Sepia officinalis.

Background: Nitric oxide (NO) is implied in many important biological processes in all metazoans from porifera to chordates. In the cuttlefish Sepia officinalis NO plays a key role in the defense system and neurotransmission.

Results: Here, we detected for the first time NO, NO synthase (NOS) and transcript levels during the development of S.